]> git.donarmstrong.com Git - lilypond.git/blobdiff - aclocal.m4
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[lilypond.git] / aclocal.m4
index de8271571a70f16d3b557ae3c2f8b7a762004088..1228f6ca29c6208a89c19bdf8aee3f651a9c3dcb 100644 (file)
-dnl aclocal.m4 generated automatically by aclocal 1.2
+dnl aclocal.m4   -*-shell-script-*-
+dnl StepMake subroutines for configure.ac
 
 
-AC_DEFUN(AC_JUNK_ARGS, [
+### mostly interal macros
+
+# Get full path of executable ($1)
+AC_DEFUN(STEPMAKE_GET_EXECUTABLE, [
+    ## which doesn't work in ash, if /usr/bin/which isn't installed
+    ## type -p doesn't work in ash
+    ## command -v doesn't work in zsh
+    ## command -v "$1" 2>&1
+    ## this test should work in ash, bash, pdksh (ksh), zsh
+    type -p $1 2>/dev/null | tail -n 1 | awk '{print $NF}'
 ])
 
-AC_DEFUN(AC_LILY_WARN, [
-    AC_MSG_WARN($1)
-    warn_b=yes
+
+# Get version string from executable ($1)
+AC_DEFUN(STEPMAKE_GET_VERSION, [
+    ## "$1" --version 2>&1 | grep -v '^$' | head -n 1 | awk '{print $NF}'
+    ##
+    ## ARG.
+    ## Workaround for broken Debian gcc version string:
+    ##     gcc (GCC) 3.1.1 20020606 (Debian prerelease)
+    ##
+    ## -V: Workaround for python
+
+    changequote(<<, >>)#dnl
+
+    ## Assume and hunt for dotted version multiplet.
+    ## use eval trickery, because we cannot use multi-level $() instead of ``
+    ## for compatibility reasons.
+    
+    ## grab the first version number in  --version output.
+    eval _ver=\"\`("$1" --version || "$1" -V) 2>&1 |
+               grep -E '(^| )[0-9][0-9]*\.[0-9]' |
+               head -n 1 |
+               tr ' ' '\n' |
+               sed 's/\([0-9][0-9]*\.[0-9][0-9.]*\).*/\1/g' |
+               grep -E '(^| )[0-9][0-9]*\.[0-9]' |
+               head -n 1\`\"
+
+    if test -z "$_ver"; then
+        ## If empty, try date [fontforge]
+        eval _ver=\"\`("$1" --version || "$1" -V) 2>&1 \
+           | grep '\(^\|[^0-9a-f]\)[0-9]\{6,8\}\([^0-9a-f]\|$\)' \
+           | head -n 1 \
+           | sed -e 's/^[^.0-9]*//' -e 's/[^.0-9]*$//'\`\"
+    fi
+    echo "$_ver"
+    changequote([, ])#dnl
+])
+
+# Calculate simplistic numeric version from version string ($1)
+# As yet, we have no need for something more elaborate.
+AC_DEFUN(STEPMAKE_NUMERIC_VERSION, [
+    echo "$1" | awk -F. '
+    {
+      if ([$]3) {three = [$]3}
+      else {three = 0}
+    }
+    {printf "%.0f\n", [$]1*1000000 + [$]2*1000 + three}'
+])
+
+
+# Add item ($2) to list ($1, one of 'OPTIONAL', 'REQUIRED')
+AC_DEFUN(STEPMAKE_ADD_ENTRY, [
+    eval "$1"=\"`eval echo \"'$'$1\" \"$2\"`\"
+])
+
+# Check if tested program ($2) was found ($1).
+# If not, add entry to missing-list ($3, one of 'OPTIONAL', 'REQUIRED').
+# We could abort here if a 'REQUIRED' program is not found
+AC_DEFUN(STEPMAKE_OPTIONAL_REQUIRED, [
+    STEPMAKE_CHECK_SEARCH_RESULT($1)
+    if test $? -ne 0; then
+       STEPMAKE_ADD_ENTRY($3, $2)
+       if test "$3" = "REQUIRED"; then
+           command="echo ERROR: $2 not found"
+           # abort configure process here?
+       else
+           command="- echo $2 not found"
+       fi
+       eval "$1"='$command'
+       false
+    else
+       true
+    fi
 ])
 
-dnl should cache result.
-dnl should  look in $prefix first.
-dnl should probably assume TDS
 
-AC_DEFUN(AC_TEX_PREFIX, [
+# Return if tested proram ($1) was found (true) or not (false).
+AC_DEFUN(STEPMAKE_CHECK_SEARCH_RESULT, [
+    r="`eval echo '$'"$1"`"
+    if test -n "$r" -a "$r" != "error" -a "$r" != "no" && expr '`eval echo '$'"$1"`' : '.*\(echo\)' > /dev/null; then
+       true
+    else
+       ##STEPMAKE_WARN(cannot find $2. $3)
+       false
+    fi
+])
+
+
+# Check version of program ($1)
+# If version ($4: optional argument, supply if version cannot be
+# parsed using --version or -V ) is smaller than requested ($3), add
+# entry to missing-list ($2, one of 'OPTIONAL', 'REQUIRED').
+AC_DEFUN(STEPMAKE_CHECK_VERSION, [
+    r="`eval echo '$'"$1"`"
+    AC_MSG_CHECKING([$r version])
+    exe=`STEPMAKE_GET_EXECUTABLE($r)`
+    if test -n "$4"; then
+        ver="$4"
+    else
+        ver=`STEPMAKE_GET_VERSION($exe)`
+    fi
+    num=`STEPMAKE_NUMERIC_VERSION($ver)`
+    req=`STEPMAKE_NUMERIC_VERSION($3)`
+    AC_MSG_RESULT([$ver])
+    if test "$num" -lt "$req"; then
+       STEPMAKE_ADD_ENTRY($2, ["$r >= $3 (installed: $ver)"])
+    fi
+    vervar="`echo $1 | tr '[a-z]' '[A-Z]'`_VERSION"
+    eval `echo $vervar=$num`
+##    AC_SUBST(`eval echo $vervar`)
+])
+
+# Check version of program ($1)
+# If version is greater than or equals unsupported ($3),
+# add entry to unsupported list ($2, 'UNSUPPORTED')
+AC_DEFUN(STEPMAKE_CHECK_VERSION_UNSUPPORTED, [
+    r="`eval echo '$'"$1"`"
+    AC_MSG_CHECKING([$r version])
+    exe=`STEPMAKE_GET_EXECUTABLE($r)`
+    ver=`STEPMAKE_GET_VERSION($exe)`
+    num=`STEPMAKE_NUMERIC_VERSION($ver)`
+    sup=`STEPMAKE_NUMERIC_VERSION($3)`
+    AC_MSG_RESULT([$ver])
+    if test "$num" -ge "$sup"; then
+       STEPMAKE_ADD_ENTRY($2, ["$r < $3 (installed: $ver)"])
+    fi
+])
+
+### Macros to build configure.ac
+
+
+AC_DEFUN(STEPMAKE_BIBTEX2HTML, [
+    STEPMAKE_PROGS(BIBTEX2HTML, bibtex2html bib2html, $1)
+    if test "$BIBTEX2HTML" = "bib2html"; then
+       BIBTEX2HTML_FLAGS='$< $(@)'
+    else
+       BIBTEX2HTML_FLAGS='-o $(@D)/$(*F) $<'
+    fi
+    AC_SUBST(BIBTEX2HTML)
+    AC_SUBST(BIBTEX2HTML_FLAGS)
+])
+
+
+AC_DEFUN(STEPMAKE_BISON, [
+    # ugh, automake: we want (and check for) bison
+    AC_PROG_YACC
     
+    STEPMAKE_PROGS(BISON, bison, $1)
+    
+    # urg.  should test functionality rather than version.
+    if test "$BISON" = "bison" -a -n "$2"; then
+       STEPMAKE_CHECK_VERSION(BISON, $1, $2)
+    fi
+])
+
+AC_DEFUN(STEPMAKE_COMPILE_BEFORE, [
+    # -O is necessary to get inlining
+    CFLAGS=${CFLAGS-""}
+    CXXFLAGS=${CXXFLAGS-$CFLAGS}
+    LDFLAGS=${LDFLAGS-""}
+    optimise_b=yes
+    checks_b=no
+    profile_b=no
+    debug_b=yes
+    pipe_b=yes
+
+    AC_ARG_ENABLE(debugging,
+    [AS_HELP_STRING([--enable-debugging],
+                    [compile with debugging info.  Default: on])],
+    [debug_b=$enableval])
 
-    AC_MSG_CHECKING(TeX/MF root dir directory)    
+    AC_ARG_ENABLE(checking,
+    [AS_HELP_STRING([--enable-checking],
+                    [compile with expensive run-time checks.  Default: off])],
+    [checks_b=$enableval])
 
-    find_root_prefix="$prefix"
+    AC_ARG_ENABLE(optimising,
+    [AS_HELP_STRING([--enable-optimising],
+                    [compile with optimising.  Default: on])],
+    [optimise_b=$enableval])
+
+    AC_ARG_ENABLE(profiling, 
+    [AS_HELP_STRING([--enable-profiling],
+                    [compile with gprof support.  Default: off])],
+    [profile_b=$enableval])
     
+    AC_ARG_ENABLE(pipe, 
+    [AS_HELP_STRING([--enable-pipe],
+                    [compile with -pipe.  Default: on])],
+    [pipe_b=$enableval])
 
-    test "x$find_root_prefix" = xNONE && find_root_prefix="$ac_default_prefix"
-    find_texpostfix="";
-    for postfix in "/lib/tex/" "/lib/texmf" "/lib" "/tex" "/texmf"; do
-       find_texprefix="$find_root_prefix$postfix"
-       if test -d $find_texprefix; then
-           find_texpostfix=$postfix
-           break;
+    if test "$optimise_b" = yes; then
+       OPTIMIZE=" -O2 -finline-functions"
+       # following two lines are compatibility while Patchy has not
+       # yet learnt about --enable-checking.  But once it has, we
+       # don't want -DDEBUG twice, so we omit it here if it is going
+       # to get added anyway later.
+    elif test "$checks_b" != yes; then
+       DEFINES="$DEFINES -DDEBUG"
+    fi
+
+    if test "$checks_b" = yes; then
+       DEFINES="$DEFINES -DDEBUG"
+    fi
+
+    if test $profile_b = yes; then
+       EXTRA_LIBS="-pg"
+       OPTIMIZE="$OPTIMIZE -pg"
+    fi
+
+    if test $debug_b = yes; then
+       OPTIMIZE="$OPTIMIZE -g"
+    fi
+])
+
+AC_DEFUN(STEPMAKE_COMPILE, [
+
+    AC_REQUIRE([STEPMAKE_COMPILE_BEFORE])
+    AC_REQUIRE([AC_PROG_CC])
+
+    STEPMAKE_OPTIONAL_REQUIRED(CC, cc, $1)
+    LD='$(CC)'
+    AC_SUBST(LD)
+
+    # If -pipe requested, test if it works and add to CFLAGS.
+    if test "$pipe_b" = yes; then
+       save_cflags="$CFLAGS"
+       CFLAGS=" -pipe $CFLAGS";
+       AC_CACHE_CHECK([whether compiler understands -pipe],
+           [stepmake_cv_cflags_pipe],
+           AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[/* -pipe test */]])],
+               [stepmake_cv_cflags_pipe=yes],
+               [stepmake_cv_cflags_pipe=no]))
+       CFLAGS=$save_cflags
+       if test $stepmake_cv_cflags_pipe = yes; then
+           OPTIMIZE="$OPTIMIZE -pipe"
+       fi
+    fi
+
+    CFLAGS="$CFLAGS $OPTIMIZE"
+    CPPFLAGS=${CPPFLAGS-""}
+
+    AC_MSG_CHECKING([for IEEE-conformance compiler flags])
+    save_cflags="$CFLAGS"
+    case "$host" in
+        alpha*-*-*)
+           dnl should do compile test?
+           AC_MSG_RESULT(-mieee)
+           CFLAGS=" -mieee $CFLAGS"
+           ;;
+       *)
+           AC_MSG_RESULT([none])
+           ;;
+    esac
+
+    AC_SUBST(cross_compiling)
+    AC_SUBST(CFLAGS)
+    AC_SUBST(CPPFLAGS)
+    AC_SUBST(LDFLAGS)
+    AC_SUBST(DEFINES)
+    AC_SUBST(EXTRA_LIBS)
+])
+
+AC_DEFUN(STEPMAKE_CXX, [
+    AC_PROG_CXX
+    STEPMAKE_OPTIONAL_REQUIRED(CXX, c++, $1)
+
+    CXXFLAGS="$CXXFLAGS $OPTIMIZE"
+
+    AC_SUBST(CXX)
+    AC_SUBST(CXXFLAGS)
+])
+
+
+AC_DEFUN(STEPMAKE_CXXTEMPLATE, [
+    AC_CACHE_CHECK([whether explicit instantiation is needed],
+       stepmake_cv_need_explicit_instantiation,
+       AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+    template <class T> struct foo { static int baz; };
+    template <class T> int foo<T>::baz = 1;
+    ]], [[ return foo<int>::baz; ]])],[stepmake_cv_need_explicit_instantiation=no],[stepmake_cv_need_explicit_instantiation=yes]))
+    if test x"$stepmake_cv_need_explicit_instantiation"x = x"yes"x; then
+       AC_DEFINE(NEED_EXPLICIT_INSTANTIATION)
+    fi
+])
+
+AC_DEFUN(STEPMAKE_GXXCODEGENBUG, [
+    AC_MSG_CHECKING([options for known g++ bugs])
+    case "$GXX:$CXX_VERSION" in
+       yes:400600[[0-2]])
+           AC_MSG_RESULT([-fno-optimize-sibling-calls (tail call bug)])
+           CXXFLAGS="$CXXFLAGS -fno-optimize-sibling-calls"
+           ;;
+       yes:400700?)
+           AC_MSG_RESULT([-fno-tree-vrp (comparison bug)])
+           CXXFLAGS="$CXXFLAGS -fno-tree-vrp"
+           ;;
+       *) AC_MSG_RESULT([none])
+    esac
+    AC_SUBST(CXXFLAGS)
+])
+
+
+AC_DEFUN(STEPMAKE_DATADIR, [
+    presome=${prefix}
+    if test "$prefix" = "NONE"; then
+       presome=${ac_default_prefix}
+    fi
+    
+    build_package_datadir=$ugh_ugh_autoconf250_builddir/out$CONFIGSUFFIX/share/$package
+    
+    DATADIR=`echo ${datadir} | sed "s!\\\${datarootdir}!${presome}/share!"`
+    DATADIR=`echo ${DATADIR} | sed "s!\\\${prefix}!$presome!"`
+    BUILD_PACKAGE_DATADIR=`echo ${build_package_datadir} | sed "s!\\\${prefix}!$presome!"`
+    
+    AC_SUBST(datadir)
+    AC_SUBST(datarootdir)
+    AC_SUBST(build_package_datadir)
+    AC_DEFINE_UNQUOTED(DATADIR, ["${DATADIR}"])
+    AC_DEFINE_UNQUOTED(BUILD_PACKAGE_DATADIR, ["${BUILD_PACKAGE_DATADIR}"])
+])
+
+## ugh: cut & paste programming from datadir. 
+AC_DEFUN(STEPMAKE_LIBDIR, [
+    presome=${exec_prefix}
+    if test "$presome" = "NONE"; then
+           presome=${prefix}
+    fi
+    if test "$presome" = "NONE"; then
+           presome=${ac_default_prefix}
+    fi
+
+    build_package_libdir=$ugh_ugh_autoconf250_builddir/out$CONFIGSUFFIX/lib/$package
+    
+    LIBDIR=`echo ${libdir} | sed "s!\\\${exec_prefix}!$presome!"`
+    BUILD_PACKAGE_LIBDIR=`echo ${build_package_libdir} | sed "s!\\\${exec_prefix}!$presome!"`
+    
+    AC_SUBST(libdir)
+    AC_SUBST(build_package_libdir)
+    AC_DEFINE_UNQUOTED(LIBDIR, ["${LIBDIR}"])
+    AC_DEFINE_UNQUOTED(BUILD_PACKAGE_LIBDIR, ["${BUILD_PACKAGE_LIBDIR}"])
+])
+
+
+AC_DEFUN(STEPMAKE_PREFIX_EXPAND_FIXUP, [
+    # undo expanding of explicit --infodir=/usr/share
+    # to ease install-time override with prefix=...
+    strip=`echo $includedir | eval sed s@^$prefix@@`
+    if test "$includedir" = "`eval echo $prefix$strip`"; then
+           includedir='${prefix}'$strip''
+    fi
+    strip=`echo $libdir | eval sed s@^$exec_prefix@@`
+    if test "$libdir" = "`eval echo $exec_prefix$strip`"; then
+           libdir='${exec_prefix}'$strip''
+    fi
+    strip=`echo $infodir | eval sed s@^$datarootdir@@`
+    if test "$infodir" = "`eval echo $datarootdir$strip`"; then
+           infodir='${datarootdir}'$strip''
+    fi
+    strip=`echo $mandir | eval sed s@^$datarootdir@@`
+    if test "$mandir" = "`eval echo $datarootdir$strip`"; then
+           mandir='${datarootdir}'$strip''
+    fi
+])
+
+
+AC_DEFUN(STEPMAKE_END, [
+    STEPMAKE_PREFIX_EXPAND_FIXUP
+
+    AC_SUBST(OPTIONAL)
+    AC_SUBST(REQUIRED)
+    
+    AC_CONFIG_FILES([$CONFIGFILE.make:config.make.in])
+    AC_OUTPUT
+    
+    if test -n "$OPTIONAL"; then
+       echo
+        echo "WARNING: Please consider installing optional programs or files: $OPTIONAL"
+    fi
+
+    if test -n "$REQUIRED"; then
+       echo
+        echo "ERROR: Please install required programs: $REQUIRED"
+    fi
+    
+    if test -n "$UNSUPPORTED"; then
+       echo
+        echo "ERROR: Please use older version of programs: $UNSUPPORTED"
+    fi
+    
+    if test -n "$OPTIONAL$REQUIRED$UNSUPPORTED"; then
+       echo
+       echo "See INSTALL.txt for more information on how to build $PACKAGE_NAME"
+       if test -f config.cache ; then
+           echo "Remove config.cache before rerunning ./configure"
+       fi 
+    fi
+    
+    if test -n "$REQUIRED$UNSUPPORTED"; then
+       rm -f $srcdir/GNUmakefile
+        exit 1
+    fi
+
+    # regular in-place build
+    # test for srcdir_build = yes ?
+    if test "$srcdir_build" = "yes"; then
+       rm -f $srcdir/GNUmakefile
+       cp $srcdir/GNUmakefile.in $srcdir/GNUmakefile
+       chmod 444 $srcdir/GNUmakefile
+    else
+       if test -f $srcdir/GNUmakefile; then
+           cat <<EOF
+Source directory already configured.  Please clean the source directory
+
+     make -C $srcdir distclean
+
+and rerun configure.
+EOF
+           exit 2
+       fi
+
+       abssrcdir="`cd $srcdir; pwd`"
+       absbuilddir="`pwd`"
+       for d in 2 3 4 5 ; do
+           for mf in `cd $srcdir ; find . -maxdepth $d -mindepth $d -name GNUmakefile`; do
+               case "$abssrcdir" in
+                   "$absbuilddir"/*)
+# source is below build directory, always copy
+                       ;;
+                   *)
+                       case "$abssrcdir/${mf#./}" in
+                           "$absbuilddir"/*)
+# find descended into build directory, don't copy
+                               continue
+                       esac
+               esac
+               mkdir -p ${mf%/*}
+               cat <<EOF | $PYTHON -  > $mf
+print 'depth=' + ('../' * ( $d-1 ) )
+print 'include \$(depth)/config\$(if \$(conf),-\$(conf),).make'
+print 'include \$(configure-srcdir)/$mf'
+print 'MODULE_INCLUDES += \$(src-dir)/\$(outbase)'
+EOF
+           done
+           for mf in `cd $srcdir ; find . -maxdepth $d -mindepth $d -name '*.make' | grep -v config.make `; do
+               case "$abssrcdir" in
+                   "$absbuilddir"/*)
+# source is below build directory, always copy
+                       ;;
+                   *)
+                       case "$abssrcdir/${mf#./}" in
+                           "$absbuilddir"/*)
+# find descended into build directory, don't copy
+                               continue
+                       esac
+               esac
+               mkdir -p ${mf%/*}
+               cat <<EOF | $PYTHON -  > $mf
+print 'include \$(depth)/config\$(if \$(conf),-\$(conf),).make'
+print 'include \$(configure-srcdir)/$mf'
+EOF
+           done
+       done
+
+       rm -f GNUmakefile
+       cat <<EOF > GNUmakefile
+depth = .
+include config\$(if \$(conf),-\$(conf),).make
+include \$(configure-srcdir)/GNUmakefile.in
+EOF
+       chmod 444 GNUmakefile
+       AC_SUBST(VPATH)
+    fi
+])
+
+
+AC_DEFUN(STEPMAKE_FLEX, [
+    # ugh, automake: we want (and check for) flex
+    # AC_PROG_LEX
+    # urg: automake 1.3: hope this doesn't break 1.2 ac_cv_pro_lex_root hack...
+
+    # AC_PROG_LEX()
+    # ugh, ugh
+    ac_cv_prog_lex_root=lex.yy
+    STEPMAKE_PROGS(FLEX, flex, $1)
+])
+
+
+AC_DEFUN(STEPMAKE_FLEXLEXER, [
+    AC_CHECK_HEADERS([FlexLexer.h],[true],[false])
+    if test $? -ne 0; then
+       warn='FlexLexer.h (flex package)'
+       STEPMAKE_ADD_ENTRY($1, $warn)
+    fi
+    # check for yyFlexLexer.yy_current_buffer,
+    # in 2.5.4 <= flex < 2.5.29
+    AC_CACHE_CHECK([for yyFlexLexer.yy_current_buffer],
+       [stepmake_cv_flexlexer_yy_current_buffer],
+       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+using namespace std;
+#include <FlexLexer.h>
+class yy_flex_lexer: public yyFlexLexer
+{
+  public:
+    yy_flex_lexer ()
+    {
+      yy_current_buffer = 0;
+    }
+};
+]])],
+           [stepmake_cv_flexlexer_yy_current_buffer=yes],
+           [stepmake_cv_flexlexer_yy_current_buffer=no]))
+    if test $stepmake_cv_flexlexer_yy_current_buffer = yes; then
+       AC_DEFINE(HAVE_FLEXLEXER_YY_CURRENT_BUFFER, 1, [Define to 1 if yyFlexLexer has yy_current_buffer.])
+    fi
+])
+  
+
+
+AC_DEFUN(STEPMAKE_FLEXLEXER_LOCATION, [
+       AC_MSG_CHECKING([FlexLexer.h location])
+
+       # ugh.
+       cat <<EOF > conftest.cc
+using namespace std;
+#include <FlexLexer.h>
+EOF
+       FLEXLEXER_FILE=`eval $ac_cpp conftest.cc | \
+         sed 's!# 1 "\(.*FlexLexer.h\)"!@FLEXLEXER@\1@@!g' | grep '@@' | \
+         sed 's!.*@FLEXLEXER@\(.*\)@@.*$!\1!g' ` 1> /dev/null 2> /dev/null
+       rm conftest.cc
+       AC_SUBST(FLEXLEXER_FILE)
+        AC_MSG_RESULT($FLEXLEXER_FILE)
+])
+
+AC_DEFUN(STEPMAKE_GCC_OR_CLANG, [
+    STEPMAKE_HAS_CLANG()
+    if test "$HAS_CLANG" = "no"; then
+        if test "$GCC" = "yes"; then
+            STEPMAKE_CHECK_VERSION(CC, $1, $2)
+        else
+           warn="$CC (Please install *GNU* cc)"
+           STEPMAKE_ADD_ENTRY($1, $warn)
+        fi
+    fi
+    # no else, we're fine with any clang
+])
+
+AC_DEFUN(STEPMAKE_GETTEXT, [
+    presome=${prefix}
+    if test "$prefix" = "NONE"; then
+           presome=${ac_default_prefix}
+    fi
+    LOCALEDIR=`echo ${localedir} | sed "s!\\\${prefix}!$presome!"`
+    
+    AC_SUBST(localedir)
+    AC_DEFINE_UNQUOTED(LOCALEDIR, ["${LOCALEDIR}"])
+    AC_CHECK_LIB(intl, gettext)
+    AC_CHECK_FUNCS(gettext)
+])
+
+
+# Check for guile, between minimum ($2) and maximum version ($3).
+# If missing, add entry to missing-list ($1, one of 'OPTIONAL', 'REQUIRED')
+AC_DEFUN(STEPMAKE_GUILE, [
+    AC_MSG_CHECKING([for guile])
+    guile="guile"
+    found="no"
+    for r in $GUILE guile guile2 guile2.0 guile-2.0 guile1 guile1.9 guile1.8 guile-1 guile-1.9 guile-1.8; do
+       exe=`STEPMAKE_GET_EXECUTABLE($r)`
+       if ! $exe --version > /dev/null 2>&1 ; then
+           continue
+       fi
+       ver=`STEPMAKE_GET_VERSION($exe)`
+       num=`STEPMAKE_NUMERIC_VERSION($ver)`
+       req=`STEPMAKE_NUMERIC_VERSION($2)`
+       sup=`STEPMAKE_NUMERIC_VERSION($3)`
+       if test -n "$2" && test "$num" -lt "$req"; then
+           guile=["$r >= $2 (installed: $ver)"]
+           continue
+       else
+           if test -n "$3" && test "$num" -ge "$sup"; then
+               guile=["$r < $3 (installed: $ver)"]
+               continue
+           else
+               guile=$r
+               found=$r
+               break
+           fi
+       fi
+    done
+    AC_MSG_RESULT([$found])
+    if test "$found" != "no"; then
+       AC_MSG_CHECKING([$guile version])
+       AC_MSG_RESULT([$ver])
+       GUILE=$found
+    else
+       STEPMAKE_ADD_ENTRY($1, $guile)
+    fi
+    STEPMAKE_PATH_PROG(GUILE, $GUILE)
+])
+
+
+#   STEPMAKE_GUILE_FLAGS --- set flags for compiling and linking with Guile
+#
+#   This macro runs the guile-config script, installed with Guile,
+#   to find out where Guile's header files and libraries are
+#   installed.  It sets two variables, marked for substitution, as
+#   by AC_SUBST.
+#   
+#     GUILE_CFLAGS --- flags to pass to a C or C++ compiler to build
+#             code that uses Guile header files.  This is almost
+#             always just a -I flag.
+#   
+#     GUILE_LDFLAGS --- flags to pass to the linker to link a
+#             program against Guile.  This includes -lguile for
+#             the Guile library itself, any libraries that Guile
+#             itself requires (like -lqthreads), and so on.  It may
+#             also include a -L flag to tell the compiler where to
+#             find the libraries.
+
+AC_DEFUN([STEPMAKE_GUILE_FLAGS], [
+    exe=`STEPMAKE_GET_EXECUTABLE($guile_config)`
+    if test -x $exe; then
+       AC_MSG_CHECKING([guile compile flags])
+       GUILE_CFLAGS="`$guile_config compile`"
+       AC_MSG_RESULT($GUILE_CFLAGS)
+       AC_MSG_CHECKING([guile link flags])
+       GUILE_LDFLAGS="`$guile_config link`"
+       AC_MSG_RESULT($GUILE_LDFLAGS)
+    fi
+    AC_SUBST(GUILE_CFLAGS)
+    AC_SUBST(GUILE_LDFLAGS)
+])
+
+
+# Check for guile-config, between minimum ($2) and maximum version ($3).
+# If missing, add entry to missing-list ($1, one of 'OPTIONAL', 'REQUIRED')
+AC_DEFUN(STEPMAKE_GUILE_DEVEL, [
+    ## First, let's just see if we can find Guile at all.
+    test -n "$target_alias" && target_guile_config=$target_alias-guile-config
+    test -n "$host_alias" && host_guile_config=$host_alias-guile-config
+    AC_MSG_CHECKING([for guile-config])
+    guile_config="guile-config"
+    found="no"
+    for r in $GUILE_CONFIG \
+      $target_guile_config $host_guile_config $build_guile_config \
+      guile-config \
+      guile2-config   guile-2-config   guile-config-2   \
+      guile2.2-config guile-2.2-config guile-config-2.2 \
+      guile2.0-config guile-2.0-config guile-config-2.0 \
+      guile1-config   guile-1-config   guile-config-1   \
+      guile1.9-config guile-1.9-config guile-config-1.9 \
+      guile1.8-config guile-1.8-config guile-config-1.8; \
+      do
+       exe=`STEPMAKE_GET_EXECUTABLE($r)`
+       if ! $exe --version > /dev/null 2>&1 ; then
+           continue
+       fi
+       ver=`STEPMAKE_GET_VERSION($exe)`
+       num=`STEPMAKE_NUMERIC_VERSION($ver)`
+       req=`STEPMAKE_NUMERIC_VERSION($2)`
+       sup=`STEPMAKE_NUMERIC_VERSION($3)`
+       if test -n "$2" -a "$num" -lt "$req"; then
+           guile_config=["$r >= $2 (installed: $ver)"]
+           continue
+       else
+           if test -n "$3" -a "$num" -ge "$sup"; then
+               guile_config=["$r < $3 (installed: $ver)"]
+               continue
+           else
+               guile_config=$r
+               found=$r
+               break
+           fi
        fi
     done
+    AC_MSG_RESULT([$found])
+    if test "$found" != "no"; then
+       AC_MSG_CHECKING([$guile_config version])
+       AC_MSG_RESULT([$ver])
+       GUILE_CONFIG=$found
+    else
+       STEPMAKE_ADD_ENTRY($1, "$guile_config (guile-devel, guile-dev or libguile-dev package)")
+    fi
+
+    AC_SUBST(GUILE_CONFIG)
     
-    if test "x$find_texpostfix" = x; then
-       find_texpostfix='/lib/texmf/tex'
-       AC_LILY_WARN(Cannot determine the TeX-directory. Please use --enable-tex-prefix)
+    guile_version="$ver"
+    changequote(<<, >>)#dnl
+    GUILE_MAJOR_VERSION=`expr $guile_version : '\([0-9]*\)'`
+    GUILE_MINOR_VERSION=`expr $guile_version : '[0-9]*\.\([0-9]*\)'`
+    GUILE_PATCH_LEVEL=`expr $guile_version : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
+    changequote([, ])#dnl
+    STEPMAKE_GUILE_FLAGS
+    save_CPPFLAGS="$CPPFLAGS"
+    save_LIBS="$LIBS"
+    CPPFLAGS="$GUILE_CFLAGS $CPPFLAGS"
+    LIBS="$GUILE_LDFLAGS $LIBS"
+    AC_CHECK_HEADERS([libguile.h])
+    AC_CHECK_LIB(guile, scm_boot_guile)
+    AC_CHECK_FUNCS(scm_boot_guile,,libguile_b=no)
+    if test "$libguile_b" = "no"; then
+           warn='libguile (libguile-dev, guile-devel or guile-dev
+   package).'
+           STEPMAKE_ADD_ENTRY(REQUIRED, $warn)
+    fi
+    CPPFLAGS="$save_CPPFLAGS"
+    LIBS="$save_LIBS"
+    AC_DEFINE_UNQUOTED(GUILE_MAJOR_VERSION, $GUILE_MAJOR_VERSION)
+    AC_DEFINE_UNQUOTED(GUILE_MINOR_VERSION, $GUILE_MINOR_VERSION)
+    AC_DEFINE_UNQUOTED(GUILE_PATCH_LEVEL, $GUILE_PATCH_LEVEL)
+])
+
+
+AC_DEFUN(STEPMAKE_DLOPEN, [
+    AC_CHECK_LIB(dl, dlopen)
+    AC_CHECK_FUNCS(dlopen)
+])
+
+AC_DEFUN(STEPMAKE_HAS_CLANG, [
+    AC_EGREP_CPP(yes,
+      [#ifdef __clang__
+       yes
+       #endif
+      ], HAS_CLANG=yes, HAS_CLANG=no)
+])
+
+AC_DEFUN(STEPMAKE_GXX_OR_CLANG, [
+    STEPMAKE_HAS_CLANG()
+    if test "$HAS_CLANG" = "no"; then
+        if test "$GXX" = "yes"; then
+            STEPMAKE_CHECK_VERSION(CXX, $1, $2)
+        else
+           warn="$CXX (Please install *GNU* c++)"
+           STEPMAKE_ADD_ENTRY($1, $warn)
+        fi
     fi
+    # no else, we're fine with any clang
+])
+
+
+AC_DEFUN(STEPMAKE_INIT, [
+
+    . $srcdir/VERSION
+    FULL_VERSION=$MAJOR_VERSION.$MINOR_VERSION.$PATCH_LEVEL
+    MICRO_VERSION=$PATCH_LEVEL
+    TOPLEVEL_VERSION=$FULL_VERSION
+    if test x$MY_PATCH_LEVEL != x; then
+       FULL_VERSION=$FULL_VERSION.$MY_PATCH_LEVEL
+    fi
+    VERSION=$FULL_VERSION
+    export MAJOR_VERSION MINOR_VERSION PATCH_LEVEL
+    # urg: don't "fix" this: irix doesn't know about [:lower:] and [:upper:]
+    changequote(<<, >>)#dnl
+    PACKAGE=`echo $PACKAGE_NAME | tr '[a-z]' '[A-Z]'`
+    package=`echo $PACKAGE_NAME | tr '[A-Z]' '[a-z]'`
+    changequote([, ])#dnl
 
-    find_texprefix="$find_root_prefix/$find_texpostfix"
+    # No versioning on directory names of sub-packages 
+    # urg, urg
+    stepmake=${datadir}/stepmake
+    presome=${prefix}
+    if test "$prefix" = "NONE"; then
+           presome=${ac_default_prefix}
+    fi
+    stepmake=`echo ${stepmake} | sed "s!\\\${prefix}!$presome!"`
 
-    # only assign if variablename not empty
-    if test x != "x[$]$1"; then
-       $1='${prefix}'/"$find_texpostfix"
+    # urg, how is this supposed to work?
+    if test "$program_prefix" = "NONE"; then
+         program_prefix=
+    fi
+    if test "$program_suffix" = "NONE"; then
+         program_suffix=
     fi
-    AC_MSG_RESULT($find_texprefix)
 
+    AC_MSG_CHECKING(Package)
+    if test "$PACKAGE" = "STEPMAKE"; then
+       AC_MSG_RESULT(Stepmake package!)
+
+       AC_MSG_CHECKING(builddir)
+
+       ugh_ugh_autoconf250_builddir="`pwd`"
+       
+       if test "$srcdir" = "."; then
+           srcdir_build=yes
+       else
+           srcdir_build=no
+           package_builddir="`dirname $ugh_ugh_autoconf250_builddir`"
+           package_srcdir="`dirname  $srcdir`"
+       fi
+       AC_MSG_RESULT($ugh_ugh_autoconf250_builddir)
+
+       (cd stepmake 2>/dev/null || mkdir stepmake)
+       (cd stepmake; rm -f bin; ln -s ../$srcdir/bin .)
+       stepmake=stepmake
+    else
+        AC_MSG_RESULT($PACKAGE)
+
+       AC_MSG_CHECKING(builddir)
+       ugh_ugh_autoconf250_builddir="`pwd`"
+
+       here_dir=$(cd . && pwd)
+       full_src_dir=$(cd $srcdir && pwd)
+
+       if test "$full_src_dir" = "$here_dir"; then
+           srcdir_build=yes
+       else
+           srcdir_build=no
+       fi
+       AC_MSG_RESULT($ugh_ugh_autoconf250_builddir)
+
+       AC_MSG_CHECKING(for stepmake)
+       # Check for installed stepmake
+       if test -d $stepmake; then
+           AC_MSG_RESULT($stepmake)
+       else
+           stepmake="`cd $srcdir/stepmake; pwd`"
+           AC_MSG_RESULT([$srcdir/stepmake  ($datadir/stepmake not found)])
+       fi
+    fi
+
+    AC_SUBST(ugh_ugh_autoconf250_builddir)
+
+    # Use absolute directory for non-srcdir builds, so that build
+    # dir can be moved.
+    if test "$srcdir_build" = "no" ;  then 
+       srcdir="`cd $srcdir; pwd`"
+    fi
+    
+    AC_SUBST(srcdir)
+    AC_SUBST(stepmake)
+    AC_SUBST(package)
+    AC_SUBST(PACKAGE)
+    AC_SUBST(PACKAGE_NAME)
+    AC_SUBST(VERSION)
+    AC_SUBST(MAJOR_VERSION)
+    AC_SUBST(MINOR_VERSION)
+    AC_SUBST(MICRO_VERSION)
+
+    # stepmake nonstandard names
+    AC_SUBST(PATCH_LEVEL)
+    AC_SUBST(TOPLEVEL_VERSION)
+    
+    # We don't need the upper case variant,
+    # so stick to macros are uppercase convention.
+    # AC_DEFINE_UNQUOTED(package, ["${package}"])
+    # AC_DEFINE_UNQUOTED(PACKAGE, ["${PACKAGE}"])
+    AC_DEFINE_UNQUOTED(PACKAGE, ["${package}"])
+    AC_DEFINE_UNQUOTED(PACKAGE_NAME, ["${PACKAGE_NAME}"])
+    AC_DEFINE_UNQUOTED(TOPLEVEL_VERSION, ["${FULL_VERSION}"])
+
+    if test -z "$package_depth"; then
+       package_depth="."
+    else
+       package_depth="../$package_depth"
+    fi
+    export package_depth
+    AC_SUBST(package_depth)
+
+    AUTOGENERATE="This file was automatically generated by configure"
+    AC_SUBST(AUTOGENERATE)
+
+    CONFIGSUFFIX=
+    AC_ARG_ENABLE(config,
+    [AS_HELP_STRING([--enable-config=CONF],
+                    [put settings in config-CONF.make and config-CONF.h;
+                   do `make conf=CONF' to get output in ./out-CONF])],
+    [CONFIGURATION=$enableval])
+
+    ##'`#
+
+    test -n "$CONFIGURATION" && CONFIGSUFFIX="-$CONFIGURATION"
+    CONFIGFILE=config$CONFIGSUFFIX
+    AC_SUBST(CONFIGSUFFIX)
+     
+    AC_CANONICAL_HOST
+    STEPMAKE_PROGS(MAKE, gmake make, REQUIRED)
+    STEPMAKE_PROGS(FIND, find, REQUIRED)
+
+    STEPMAKE_PROGS(TAR, tar, REQUIRED)
+
+    if test "$(echo 2)" != "2" ||
+       test "x`uname`" = "xHP-UX"; then
+       AC_PATH_PROG(KSH, ksh, /bin/ksh)
+       AC_PATH_PROG(BASH, bash, $KSH)
+       STEPMAKE_WARN(avoiding buggy /bin/sh)
+       AC_PATH_PROG(SHELL, bash, $KSH)
+    else
+       SHELL=/bin/sh
+       AC_PATH_PROG(BASH, bash, $SHELL)
+    fi
+    AC_SUBST(SHELL)
+
+    STEPMAKE_PYTHON(REQUIRED, 1.5, 3.0)
+
+    if expr "$MAKE" : '.*\(echo\)' >/dev/null; then
+       $MAKE -v 2> /dev/null | grep GNU > /dev/null
+       if test "$?" = 1; then
+           warn='make (Please install *GNU* make)'
+           # STEPMAKE_WARN($warn)
+           STEPMAKE_ADD_ENTRY(REQUIRED, $warn)
+        fi
+    fi
+
+    ROOTSEP=':'
+    DIRSEP='/'
+    PATHSEP=':'
+    LN=ln
+    LN_S='ln -s'
+    ZIP="zip -r -9"
+
+    AC_SUBST(program_prefix)
+    AC_SUBST(program_suffix)
+    AC_SUBST(ZIP)
+    AC_SUBST(LN)
+    AC_SUBST(LN_S)
+    AC_DEFINE_UNQUOTED(DIRSEP, ['${DIRSEP}'])
+    AC_DEFINE_UNQUOTED(PATHSEP, ['${PATHSEP}'])
+    AC_SUBST(DIRSEP)
+    AC_SUBST(PATHSEP)
+    AC_SUBST(ROOTSEP)
+  
+    STEPMAKE_DATADIR
+    STEPMAKE_LIBDIR
 ])
 
-# find a directory inside a prefix, 
-# $1 the prefix (expanded version)
-# $2 variable to assign
-# $3 the directory name 
-# $4 description
-AC_DEFUN(AC_FIND_DIR_IN_PREFIX, [
     
-    AC_MSG_CHECKING($4 directory)    
-    find_dirdir=`(cd $1; 
-      $FIND ./ -type d -a -name $3 -print |sort|head -1|sed 's#^\./##')`
+AC_DEFUN(STEPMAKE_LIB, [
+    STEPMAKE_PROGS(AR, ar, $1)
+    AC_PROG_RANLIB
+    STEPMAKE_OPTIONAL_REQUIRED(RANLIB, ranlib, $1)
+])
+
+
+AC_DEFUN(STEPMAKE_LIBTOOL, [
+    # libtool.info ...
+    # **Never** try to set library version numbers so that they correspond
+    # to the release number of your package.  This is an abuse that only
+    # fosters misunderstanding of the purpose of library versions.
+
+    REVISION=$PATCH_LEVEL
+    # CURRENT=$MINOR_VERSION
+    CURRENT=`expr $MINOR_VERSION + 1`
+    # AGE=`expr $MAJOR_VERSION + 1`
+    AGE=$MAJOR_VERSION
+    AC_SUBST(CURRENT)
+    AC_SUBST(REVISION)
+    AC_SUBST(AGE)
+])
+
+
+AC_DEFUN(STEPMAKE_LOCALE, [
+    lang=English
+    ALL_LINGUAS="en nl"
+
+    # with/enable ??
+    AC_ARG_WITH(localedir,
+    [AS_HELP_STRING([--with-localedir=DIR],
+                    [location of locales.  Default: PREFIX/share/locale])],
+    localedir=$with_localedir,
+    localedir='${prefix}/share/locale')
+
+    AC_ARG_WITH(lang,
+    [AS_HELP_STRING([--with-lang=LANG],
+                    [use LANG as language to emit messages])],
+    language=$with_lang,
+    language=English)
+
+    AC_MSG_CHECKING(language)    
+    case "$language" in
+      En* | en* | Am* | am* | US* | us*)
+           lang=English;;
+      NL | nl | Du* | du* | Ned* | ned*)
+           lang=Dutch;;
+      "")
+           lang=English;;
+      *)
+           lang=unknown;;
+    esac
+    AC_MSG_RESULT($lang)
+
+    if test "$lang" = "unknown" ; then
+       STEPMAKE_WARN($language not supported; available are: $ALL_LINGUAS)
+    fi
+
+])
+
+
+AC_DEFUN(STEPMAKE_MAKEINFO, [
+    STEPMAKE_PROGS(MAKEINFO, makeinfo, $1)
+])
+
+
+AC_DEFUN(STEPMAKE_MAN, [
+    STEPMAKE_PROGS(GROFF, groff ditroff, $1)
+    AC_SUBST(GROFF)
+    STEPMAKE_PROGS(TROFF, troff, $1)
+    AC_SUBST(TROFF)
+    STEPMAKE_PROGS(TBL, tbl, $1)
+    AC_SUBST(TBL)
+])
+
+
+AC_DEFUN(STEPMAKE_MSGFMT, [
+    STEPMAKE_PROGS(MSGFMT, msgfmt, $1)
+])
+
+
+# Check for program ($2), set full path result to ($1).
+# If missing, add entry to missing-list ($3, one of 'OPTIONAL', 'REQUIRED')
+AC_DEFUN(STEPMAKE_PATH_PROG, [
+    AC_CHECK_PROGS($1, $2, no)
+    STEPMAKE_OPTIONAL_REQUIRED($1, $2, $3)
+    if test $? -eq 0; then
+       AC_PATH_PROGS($1, $2)
+       if test -n "$4"; then
+           STEPMAKE_CHECK_VERSION($1, $3, $4)
+       fi
+    fi
+])
+
+
+# Check for program in set of names ($2), set result to ($1) .
+# If missing, add entry to missing-list ($3, one of 'OPTIONAL', 'REQUIRED')
+# If exists, and a minimal version ($4) is required
+AC_DEFUN(STEPMAKE_PROGS, [
+    AC_CHECK_PROGS($1, $2, no)
+    STEPMAKE_OPTIONAL_REQUIRED($1, $2, $3)
+    if test $? -eq 0 -a -n "$4"; then
+       STEPMAKE_CHECK_VERSION($1, $3, $4)
+    fi
+])
+
+
+AC_DEFUN(STEPMAKE_PERL, [
+    STEPMAKE_PATH_PROG(PERL, perl, $1)
+])
+
+
+# Check for python, between minimum ($2) and maximum version ($3).
+# If missing, add entry to missing-list ($1, one of 'OPTIONAL', 'REQUIRED')
+AC_DEFUN(STEPMAKE_PYTHON, [
+    AC_MSG_CHECKING([for python])
+    python="python"
+    found="no"
+    for r in $PYTHON python python3 python3.3 python3.2 python3.1 python3.0 python2 python2.7 python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 python2.0; do
+       exe=`STEPMAKE_GET_EXECUTABLE($r)`
+       if ! $exe -V > /dev/null 2>&1 ; then
+           continue
+       fi
+       ver=`STEPMAKE_GET_VERSION($exe)`
+       num=`STEPMAKE_NUMERIC_VERSION($ver)`
+       req=`STEPMAKE_NUMERIC_VERSION($2)`
+       sup=`STEPMAKE_NUMERIC_VERSION($3)`
+       if test -n "$2" && test "$num" -lt "$req"; then
+           python=["$r >= $2 (installed: $ver)"]
+           continue
+       else
+           if test -n "$3" && test "$num" -ge "$sup"; then
+               python=["$r < $3 (installed: $ver)"]
+               continue
+           else
+               python=$r
+               found=$r
+               break
+           fi
+       fi
+    done
+    AC_MSG_RESULT([$found])
+    if test "$found" != "no"; then
+       AC_MSG_CHECKING([$python version])
+       AC_MSG_RESULT([$ver])
+       PYTHON=$found
+    else
+       STEPMAKE_ADD_ENTRY($1, $python)
+    fi
+    AC_PATH_PROG(PYTHON, $PYTHON)
+    AC_SUBST(PYTHON)
+])
+
+# Check for python-config, between minimum ($2) and maximum version ($3).
+# If missing, add entry to missing-list ($1, one of 'OPTIONAL', 'REQUIRED')
+AC_DEFUN(STEPMAKE_PYTHON_DEVEL, [
+    AC_ARG_WITH(python-include,
+       [AS_HELP_STRING([--with-python-include=DIR],
+                       [location of the python include dir])],[
+       if test "$withval" = "yes" -o "$withval" = "no"; then
+           AC_MSG_WARN(Usage: --with-python-include=includedir)
+       else
+           PYTHON_CFLAGS="-I${withval}"
+       fi
+    ])
     
+    AC_ARG_WITH(python-lib,
+       [AS_HELP_STRING([--with-python-lib=NAME],
+                       [name of the python lib])],[
+       if test "$withval" = "yes" -o "$withval" = "no"; then
+           AC_MSG_WARN(Usage: --with-python-lib=name)
+       else
+           LDFLAGS="$LDFLAGS -l${withval}"
+       fi
+    ])
 
-    if test "x$find_dirdir" = x; then
-       find_dirdir="/$3";
-       AC_LILY_WARN(Cannot determine $4 subdirectory. Please set from command-line)
-       true
+    STEPMAKE_PYTHON($1, $2, $3)
+    AC_CHECK_PROGS(PYTHON_CONFIG, `basename $PYTHON`-config, no)
+
+    if test -z "$PYTHON_CFLAGS" -a "$PYTHON_CONFIG" != "no"; then
+        # Clean out junk: http://bugs.python.org/issue3290
+       # Python headers may need some -f* flags, leave them in.
+       # We want the sed commands to look like 's/-[WDOm][[:alnum:][:punct:]][[:alnum:][:punct:]]*//g' and 's/-arch [^[:space:]]*//g', but automake eats brackets.
+        #PYTHON_CFLAGS=`$PYTHON_CONFIG --cflags | sed -e 's/-[[WDOm]][[[:alnum:][:punct:]]][[[:alnum:][:punct:]]]*//g' | sed -e 's/-arch @<:@^@<:@:space:@:>@@:>@*//g'`
+        # The above sed BRE matches parts of legal options, stipping down part of that option, resulting in invalid gcc arguments. Gentoo Bug #415793
+        # For instance, '-floop-stip-mime' becomes '-floop-strip', and '-fvect-cost-model' becomes '-fvect-cost'.
+        # Tentative fix to require a non alphanumeric character before the initial hyphen of the BRE or the hyphen being the first character in the string.
+        PYTHON_CFLAGS=`$PYTHON_CONFIG --cflags | sed -e 's/\(^\|[[^[:alnum:]]]\)-[[WDOm]][[[:alnum:][:punct:]]][[[:alnum:][:punct:]]]*//g' | sed -e 's/-arch @<:@^@<:@:space:@:>@@:>@*//g'`
+       PYTHON_LDFLAGS=`$PYTHON_CONFIG --ldflags`
     fi
-    $2=$find_dirdir
-    AC_MSG_RESULT($1/$find_dirdir)
+    
+    if test -z "$PYTHON_CFLAGS" -a "$cross_compiling" = "no"; then
+       changequote(<<, >>)#dnl
+       # alternatively, for python >= 2.0
+       # 'import sys, distutils.sysconfig; sys.stdout.write (distutils.sysconfig.get_python_inc ())'
+       PYTHON_INCLUDE=`$PYTHON -c 'import sys; sys.stdout.write ("%s/include/python%s" % (sys.prefix, sys.version[:3]))'`
+       PYTHON_CFLAGS="-I$PYTHON_INCLUDE"
+       changequote([, ])#dnl
+    fi
+    
+    if test -z "$PYTHON_HEADER"; then
+       CPPFLAGS="$PYTHON_CFLAGS $CPPFLAGS"
+       AC_CHECK_HEADERS([Python.h],[PYTHON_HEADER=yes])
+    fi
+    
+    if test -z "$PYTHON_HEADER"; then
+       warn="Python.h (python-devel, python-dev or libpython-dev package)"
+       STEPMAKE_ADD_ENTRY($1, $warn)
+    fi
+    AC_SUBST(PYTHON_CFLAGS)
+    AC_SUBST(PYTHON_LDFLAGS)
 ])
 
-AC_DEFUN(AC_TEX_SUBDIR, [
-dnl    AC_REQUIRE([AC_TEX_PREFIX])
-    AC_FIND_DIR_IN_PREFIX($find_texprefix, $1, tex,TeX input)
-    $1="$TEXPREFIX/$$1"
+
+
+AC_DEFUN(STEPMAKE_STL_DATA_METHOD, [
+    AC_CACHE_CHECK([for stl.data () method],
+       [stepmake_cv_stl_data_method],
+       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#include <vector>
+using namespace std;
+vector <int> v;
+void *p = v.data ();
+]])],
+           [stepmake_cv_stl_data_method=yes],
+           [stepmake_cv_stl_data_method=no]))
+    if test $stepmake_cv_stl_data_method = yes; then
+       AC_DEFINE(HAVE_STL_DATA_METHOD, 1, [define if stl classes have data () method])
+    fi
 ])
 
-AC_DEFUN(AC_MF_SUBDIR, [
-dnl     AC_REQUIRE([AC_TEX_PREFIX])
-    AC_FIND_DIR_IN_PREFIX($find_texprefix, $1, source, MF input)
-    $1="$TEXPREFIX/$$1"
+
+AC_DEFUN(STEPMAKE_TEXMF_DIRS, [
+    STEPMAKE_PROGS(KPSEWHICH, kpsewhich, $1)
+
+    AC_MSG_CHECKING(for metapost required files)
+    if test "$MFPLAIN_MP" = ""; then
+        MFPLAIN_MP=`kpsewhich -format=mp mfplain`
+    fi
+    if test "$MFPLAIN_MP" = ""; then
+        AC_MSG_RESULT(no)
+        STEPMAKE_ADD_ENTRY($1,['metapost CTAN package (texlive-metapost)'])
+    else
+        AC_MSG_RESULT(yes)
+    fi
 ])
 
-AC_DEFUN(AC_CHECK_SEARCH_RESULT, [
-       if test $1 = "error" 
-       then
-               AC_LILY_WARN(can't find $2. $3)
+AC_DEFUN(STEPMAKE_TEXMF, [
+    STEPMAKE_PROGS(METAFONT, mf-nowin mf mfw mfont, $1)
+    STEPMAKE_PROGS(METAPOST, mpost, $1)
+    if test "$METAPOST" != ""; then
+       ver=`STEPMAKE_GET_VERSION($METAPOST)`
+       num=`STEPMAKE_NUMERIC_VERSION($ver)`
+       # Avoid buggy metapost versions: 1.600 <= x < 1.803
+       if test "$num" -ge "1600000" -a "$num" -lt "1803000"; then
+            STEPMAKE_ADD_ENTRY($1, ["mpost (due to a bug in metapost, versions 1.600 <= x < 1.803 are not supported; installed: $ver)"])
        fi
+    fi
+
+    AC_MSG_CHECKING(for working metafont mode)
+    modelist='ljfour lj4 lj3 lj2 ljet laserjet'
+    for MFMODE in $modelist; do
+       $METAFONT -progname=mf "\mode:=$MFMODE; mode_setup; end." > /dev/null 2>&1
+       if test -f mfput.tfm; then
+           break;
+       fi
+    done
+    AC_MSG_RESULT($MFMODE)
+
+    rm -f mfput.*
+
+    AC_SUBST(MFMODE)
 ])
 
-# Do all the work for Automake.  This macro actually does too much --
-# some checks are only needed if your package does certain things.
-# But this isn't really a big deal.
-
-# serial 1
-
-dnl Usage:
-dnl AM_INIT_AUTOMAKE(package,version, [no-define])
-
-AC_DEFUN(AM_INIT_AUTOMAKE,
-[AC_REQUIRE([AM_PROG_INSTALL])
-PACKAGE=[$1]
-AC_SUBST(PACKAGE)
-VERSION=[$2]
-AC_SUBST(VERSION)
-dnl test to see if srcdir already configured
-if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
-  AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
-fi
-ifelse([$3],,
-AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE")
-AC_DEFINE_UNQUOTED(VERSION, "$VERSION"))
-AM_SANITY_CHECK
-AC_ARG_PROGRAM
-dnl FIXME This is truly gross.
-missing_dir=`cd $ac_aux_dir && pwd`
-AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
-AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
-AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
-AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
-AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
-AC_PROG_MAKE_SET])
-
-
-# serial 1
-
-AC_DEFUN(AM_PROG_INSTALL,
-[AC_REQUIRE([AC_PROG_INSTALL])
-test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL_PROGRAM}'
-AC_SUBST(INSTALL_SCRIPT)dnl
+
+AC_DEFUN(STEPMAKE_WARN, [
+    AC_MSG_WARN($1)
+    warn_b=yes
 ])
 
-#
-# Check to make sure that the build environment is sane.
-#
 
-AC_DEFUN(AM_SANITY_CHECK,
-[AC_MSG_CHECKING([whether build environment is sane])
-# Just in case
-sleep 1
-echo timestamp > conftestfile
-# Do `set' in a subshell so we don't clobber the current shell's
-# arguments.  Must try -L first in case configure is actually a
-# symlink; some systems play weird games with the mod time of symlinks
-# (eg FreeBSD returns the mod time of the symlink's containing
-# directory).
-if (
-   set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
-   if test "$@" = "X"; then
-      # -L didn't work.
-      set X `ls -t $srcdir/configure conftestfile`
-   fi
-   test "[$]2" = conftestfile
-   )
-then
-   # Ok.
-   :
-else
-   AC_MSG_ERROR([newly created file is older than distributed files!
-Check your system clock])
-fi
-rm -f conftest*
-AC_MSG_RESULT(yes)])
-
-dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
-dnl The program must properly implement --version.
-AC_DEFUN(AM_MISSING_PROG,
-[AC_MSG_CHECKING(for working $2)
-# Run test in a subshell; some versions of sh will print an error if
-# an executable is not found, even if stderr is redirected.
-# Redirect stdin to placate older versions of autoconf.  Sigh.
-if ($2 --version) < /dev/null > /dev/null 2>&1; then
-   $1=$2
-   AC_MSG_RESULT(found)
-else
-   $1="$3/missing $2"
-   AC_MSG_RESULT(missing)
-fi
-AC_SUBST($1)])
-
-
-# serial 24 AM_PROG_LIBTOOL
-AC_DEFUN(AM_PROG_LIBTOOL,
-[AC_REQUIRE([AM_ENABLE_SHARED])dnl
-AC_REQUIRE([AM_ENABLE_STATIC])dnl
-AC_REQUIRE([AC_CANONICAL_HOST])dnl
-AC_REQUIRE([AC_PROG_RANLIB])dnl
-AC_REQUIRE([AC_PROG_CC])dnl
-AC_REQUIRE([AM_PROG_LD])dnl
-AC_REQUIRE([AM_PROG_NM])dnl
-AC_REQUIRE([AC_PROG_LN_S])dnl
-dnl
-# Always use our own libtool.
-LIBTOOL='$(SHELL) $(top_builddir)/libtool'
-AC_SUBST(LIBTOOL)dnl
-
-# Check for any special flags to pass to ltconfig.
-libtool_flags=
-test "$enable_shared" = no && libtool_flags="$libtool_flags --disable-shared"
-test "$enable_static" = no && libtool_flags="$libtool_flags --disable-static"
-test "$silent" = yes && libtool_flags="$libtool_flags --silent"
-test "$ac_cv_prog_gcc" = yes && libtool_flags="$libtool_flags --with-gcc"
-test "$ac_cv_prog_gnu_ld" = yes && libtool_flags="$libtool_flags --with-gnu-ld"
-
-# Some flags need to be propagated to the compiler or linker for good
-# libtool support.
-case "$host" in
-*-*-irix6*)
-  # Find out which ABI we are using.
-  echo '[#]line __oline__ "configure"' > conftest.$ac_ext
-  if AC_TRY_EVAL(ac_compile); then
-    case "`/usr/bin/file conftest.o`" in
-    *32-bit*)
-      LD="${LD-ld} -32"
-      ;;
-    *N32*)
-      LD="${LD-ld} -n32"
-      ;;
-    *64-bit*)
-      LD="${LD-ld} -64"
-      ;;
-    esac
+dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
+dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
+dnl also defines GSTUFF_PKG_ERRORS on error
+AC_DEFUN(PKG_CHECK_MODULES, [
+  succeeded=no
+
+  if test -z "$PKG_CONFIG"; then
+    AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
   fi
-  rm -rf conftest*
-  ;;
-
-*-*-sco3.2v5*)
-  # On SCO OpenServer 5, we need -belf to get full-featured binaries.
-  CFLAGS="$CFLAGS -belf"
-  ;;
-esac
-
-# Actually configure libtool.  ac_aux_dir is where install-sh is found.
-CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" \
-LD="$LD" NM="$NM" RANLIB="$RANLIB" LN_S="$LN_S" \
-${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig \
-$libtool_flags --no-verify $ac_aux_dir/ltmain.sh $host \
-|| AC_MSG_ERROR([libtool configure failed])
-])
-
-# AM_ENABLE_SHARED - implement the --enable-shared flag
-# Usage: AM_ENABLE_SHARED[(DEFAULT)]
-#   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
-#   `yes'.
-AC_DEFUN(AM_ENABLE_SHARED,
-[define([AM_ENABLE_SHARED_DEFAULT], ifelse($1, no, no, yes))dnl
-AC_ARG_ENABLE(shared,
-changequote(<<, >>)dnl
-<<  --enable-shared         build shared libraries [default=>>AM_ENABLE_SHARED_DEFAULT]
-changequote([, ])dnl
-[  --enable-shared=PKGS    only build shared libraries if the current package
-                          appears as an element in the PKGS list],
-[p=${PACKAGE-default}
-case "$enableval" in
-yes) enable_shared=yes ;;
-no) enable_shared=no ;;
-*)
-  enable_shared=no
-  # Look at the argument we got.  We use all the common list separators.
-  IFS="${IFS=  }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
-  for pkg in $enableval; do
-    if test "X$pkg" = "X$p"; then
-      enable_shared=yes
-    fi
-  done
-  IFS="$ac_save_ifs"
-  ;;
-esac],
-enable_shared=AM_ENABLE_SHARED_DEFAULT)dnl
-])
-
-# AM_DISABLE_SHARED - set the default shared flag to --disable-shared
-AC_DEFUN(AM_DISABLE_SHARED,
-[AM_ENABLE_SHARED(no)])
-
-# AM_DISABLE_STATIC - set the default static flag to --disable-static
-AC_DEFUN(AM_DISABLE_STATIC,
-[AM_ENABLE_STATIC(no)])
-
-# AM_ENABLE_STATIC - implement the --enable-static flag
-# Usage: AM_ENABLE_STATIC[(DEFAULT)]
-#   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
-#   `yes'.
-AC_DEFUN(AM_ENABLE_STATIC,
-[define([AM_ENABLE_STATIC_DEFAULT], ifelse($1, no, no, yes))dnl
-AC_ARG_ENABLE(static,
-changequote(<<, >>)dnl
-<<  --enable-static         build static libraries [default=>>AM_ENABLE_STATIC_DEFAULT]
-changequote([, ])dnl
-[  --enable-static=PKGS    only build shared libraries if the current package
-                          appears as an element in the PKGS list],
-[p=${PACKAGE-default}
-case "$enableval" in
-yes) enable_static=yes ;;
-no) enable_static=no ;;
-*)
-  enable_static=no
-  # Look at the argument we got.  We use all the common list separators.
-  IFS="${IFS=  }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
-  for pkg in $enableval; do
-    if test "X$pkg" = "X$p"; then
-      enable_static=yes
-    fi
-  done
-  IFS="$ac_save_ifs"
-  ;;
-esac],
-enable_static=AM_ENABLE_STATIC_DEFAULT)dnl
-])
-
-
-# AM_PROG_LD - find the path to the GNU or non-GNU linker
-AC_DEFUN(AM_PROG_LD,
-[AC_ARG_WITH(gnu-ld,
-[  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]],
-test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)
-AC_REQUIRE([AC_PROG_CC])
-ac_prog=ld
-if test "$ac_cv_prog_gcc" = yes; then
-  # Check if gcc -print-prog-name=ld gives a path.
-  AC_MSG_CHECKING([for ld used by GCC])
-  ac_prog=`($CC -print-prog-name=ld) 2>&5`
-  case "$ac_prog" in
-  # Accept absolute paths.
-  /* | [A-Za-z]:\\*)
-    test -z "$LD" && LD="$ac_prog"
-    ;;
-  "")
-    # If it fails, then pretend we aren't using GCC.
-    ac_prog=ld
-    ;;
-  *)
-    # If it is relative, then search for the first ld in PATH.
-    with_gnu_ld=unknown
-    ;;
-  esac
-elif test "$with_gnu_ld" = yes; then
-  AC_MSG_CHECKING([for GNU ld])
-else
-  AC_MSG_CHECKING([for non-GNU ld])
-fi
-AC_CACHE_VAL(ac_cv_path_LD,
-[if test -z "$LD"; then
-  IFS="${IFS=  }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
-  for ac_dir in $PATH; do
-    test -z "$ac_dir" && ac_dir=.
-    if test -f "$ac_dir/$ac_prog"; then
-      ac_cv_path_LD="$ac_dir/$ac_prog"
-      # Check to see if the program is GNU ld.  I'd rather use --version,
-      # but apparently some GNU ld's only accept -v.
-      # Break only if it was the GNU/non-GNU ld that we prefer.
-      if "$ac_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then
-       test "$with_gnu_ld" != no && break
-      else
-        test "$with_gnu_ld" != yes && break
-      fi
-    fi
-  done
-  IFS="$ac_save_ifs"
-else
-  ac_cv_path_LD="$LD" # Let the user override the test with a path.
-fi])
-LD="$ac_cv_path_LD"
-if test -n "$LD"; then
-  AC_MSG_RESULT($LD)
-else
-  AC_MSG_RESULT(no)
-fi
-test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
-AC_SUBST(LD)
-AM_PROG_LD_GNU
-])
-
-AC_DEFUN(AM_PROG_LD_GNU,
-[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], ac_cv_prog_gnu_ld,
-[# I'd rather use --version here, but apparently some GNU ld's only accept -v.
-if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then
-  ac_cv_prog_gnu_ld=yes
-else
-  ac_cv_prog_gnu_ld=no
-fi])
-])
-
-# AM_PROG_NM - find the path to a BSD-compatible name lister
-AC_DEFUN(AM_PROG_NM,
-[AC_MSG_CHECKING([for BSD-compatible nm])
-AC_CACHE_VAL(ac_cv_path_NM,
-[case "$NM" in
-/* | [A-Za-z]:\\*)
-  ac_cv_path_NM="$NM" # Let the user override the test with a path.
-  ;;
-*)
-  IFS="${IFS=  }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
-  for ac_dir in /usr/ucb /usr/ccs/bin $PATH /bin; do
-    test -z "$ac_dir" && ac_dir=.
-    if test -f $ac_dir/nm; then
-      # Check to see if the nm accepts a BSD-compat flag.
-      # Adding the `sed 1q' prevents false positives on HP-UX, which says:
-      #   nm: unknown option "B" ignored
-      if ($ac_dir/nm -B /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
-        ac_cv_path_NM="$ac_dir/nm -B"
-      elif ($ac_dir/nm -p /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
-        ac_cv_path_NM="$ac_dir/nm -p"
-      else
-        ac_cv_path_NM="$ac_dir/nm"
-      fi
-      break
-    fi
-  done
-  IFS="$ac_save_ifs"
-  test -z "$ac_cv_path_NM" && ac_cv_path_NM=nm
-  ;;
-esac])
-NM="$ac_cv_path_NM"
-AC_MSG_RESULT([$NM])
-AC_SUBST(NM)
-])
-
-# Like AC_CONFIG_HEADER, but automatically create stamp file.
-
-AC_DEFUN(AM_CONFIG_HEADER,
-[AC_PREREQ([2.12])
-AC_CONFIG_HEADER([$1])
-dnl When config.status generates a header, we must update the stamp-h file.
-dnl This file resides in the same directory as the config header
-dnl that is generated.  We must strip everything past the first ":",
-dnl and everything past the last "/".
-AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl
-ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>,
-<<test -z "<<$>>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/\)?.*>>, <<\1>>)stamp-h<<>>dnl>>,
-<<am_indx=1
-for am_file in <<$1>>; do
-  case " <<$>>CONFIG_HEADERS " in
-  *" <<$>>am_file "*<<)>>
-    echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx
-    ;;
-  esac
-  am_indx=`expr "<<$>>am_indx" + 1`
-done<<>>dnl>>)
-changequote([,]))])
 
+  if test "$PKG_CONFIG" = "no" ; then
+     echo "*** The pkg-config script could not be found. Make sure it is"
+     echo "*** in your path, or set the PKG_CONFIG environment variable"
+     echo "*** to the full path to pkg-config."
+     echo "*** Or see http://www.freedesktop.org/software/pkgconfig to get pkg-config."
+  else
+     PKG_CONFIG_MIN_VERSION=0.9.0
+     if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
+        AC_MSG_CHECKING(for $2)
+
+        if $PKG_CONFIG --exists "$2" ; then
+            AC_MSG_RESULT(yes)
+            succeeded=yes
+
+            AC_MSG_CHECKING($1_CFLAGS)
+            $1_CFLAGS=`$PKG_CONFIG --cflags "$2"`
+            AC_MSG_RESULT($$1_CFLAGS)
+
+            AC_MSG_CHECKING($1_LIBS)
+            $1_LIBS=`$PKG_CONFIG --libs "$2"`
+            AC_MSG_RESULT($$1_LIBS)
+        else
+            $1_CFLAGS=""
+            $1_LIBS=""
+            ## If we have a custom action on failure, don't print errors, but 
+            ## do set a variable so people can do so.
+            $1_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
+            ifelse([$4], ,echo $$1_PKG_ERRORS,)
+        fi
+
+        AC_SUBST($1_CFLAGS)
+        AC_SUBST($1_LIBS)
+     fi
+  fi
+
+  if test $succeeded = yes; then
+     ifelse([$3], , :, [$3])
+  else
+     ifelse([$4], , AC_MSG_ERROR([Library requirements ($2) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.]), [$4])
+  fi
+])
+
+AC_DEFUN(STEPMAKE_FREETYPE2, [
+    PKG_CHECK_MODULES(FREETYPE2, $1 >= $3, have_freetype2=yes, true)
+    if test "$have_freetype2" = yes; then
+       AC_DEFINE(HAVE_FREETYPE2)
+        save_CPPFLAGS="$CPPFLAGS"
+        save_LIBS="$LIBS"
+       CPPFLAGS="$FREETYPE2_CFLAGS $CPPFLAGS"
+       LIBS="$FREETYPE2_LIBS $LIBS"
+       AC_SUBST(FREETYPE2_CFLAGS)
+       AC_SUBST(FREETYPE2_LIBS)
+       CPPFLAGS="$save_CPPFLAGS"
+       LIBS="$save_LIBS"
+    else
+       # UGR
+       #r="lib$1-dev or $1-devel"
+       r="libfreetype6-dev or freetype?-devel"
+       ver="`pkg-config --modversion $1`"
+       STEPMAKE_ADD_ENTRY($2, ["$r >= $3 (installed: $ver)"])
+    fi
+])
+
+AC_DEFUN(STEPMAKE_PANGO, [
+    PKG_CHECK_MODULES(PANGO, $1 >= $3, have_pango16=yes, true)
+    if test "$have_pango16" = yes ; then
+       AC_DEFINE(HAVE_PANGO16)
+       # Do not pollute user-CPPFLAGS with configure-CPPFLAGS
+        save_CPPFLAGS="$CPPFLAGS"
+        save_LIBS="$LIBS"
+       CPPFLAGS="$PANGO_CFLAGS $CPPFLAGS"
+       LIBS="$PANGO_LIBS $LIBS"
+       AC_CHECK_HEADERS([pango/pangofc-fontmap.h])
+       AC_CHECK_FUNCS([pango_fc_font_map_add_decoder_find_func])
+       AC_SUBST(PANGO_CFLAGS)
+       AC_SUBST(PANGO_LIBS)
+       CPPFLAGS="$save_CPPFLAGS"
+       LIBS="$save_LIBS"
+    else
+       # UGR
+       #r="lib$1-dev or $1-devel"
+       r="libpango1.0-dev or pango1.0-devel"
+       ver="`pkg-config --modversion $1`"
+       STEPMAKE_ADD_ENTRY($2, ["$r >= $3 (installed: $ver)"])
+    fi
+])
+
+AC_DEFUN(STEPMAKE_PANGO_FT2, [
+    PKG_CHECK_MODULES(PANGO_FT2, $1 >= $3, have_pangoft2=yes, true)
+    if test "$have_pangoft2" = yes ; then
+       AC_DEFINE(HAVE_PANGO16)
+       AC_DEFINE(HAVE_PANGO_FT2)
+       # Do not pollute user-CPPFLAGS with configure-CPPFLAGS
+        save_CPPFLAGS="$CPPFLAGS"
+        save_LIBS="$LIBS"
+       CPPFLAGS="$CPPFLAGS $PANGO_FT2_CFLAGS"
+       LIBS="$PANGO_FT2_LIBS $LIBS"
+       AC_CHECK_HEADERS([pango/pangoft2.h])
+       AC_CHECK_FUNCS([pango_ft2_font_map_create_context])
+       AC_SUBST(PANGO_FT2_CFLAGS)
+       AC_SUBST(PANGO_FT2_LIBS)
+       CPPFLAGS="$save_CPPFLAGS"
+       LIBS="$save_LIBS"
+    else
+       # UGR
+       #r="lib$1-dev or $1-devel"e
+       r="libpango1.0-dev or pango?-devel"
+       ver="`pkg-config --modversion $1`"
+       STEPMAKE_ADD_ENTRY($2, ["$r >= $3 (installed: $ver)"])
+    fi
+])
+
+AC_DEFUN(STEPMAKE_PANGO_FT2_WITH_OTF_FEATURE, [
+        PKG_CHECK_MODULES(PANGO_FT2, $1 >= $3,
+                         have_pangoft2_with_otf_feature=yes, true)
+    if test "$have_pangoft2_with_otf_feature" = yes ; then
+       AC_DEFINE(HAVE_PANGO16)
+       AC_DEFINE(HAVE_PANGO_FT2)
+       AC_DEFINE(HAVE_PANGO_FT2_WITH_OTF_FEATURE)
+       # Do not pollute user-CPPFLAGS with configure-CPPFLAGS
+        save_CPPFLAGS="$CPPFLAGS"
+        save_LIBS="$LIBS"
+       CPPFLAGS="$CPPFLAGS $PANGO_FT2_CFLAGS"
+       LIBS="$PANGO_FT2_LIBS $LIBS"
+       AC_CHECK_HEADERS([pango/pangoft2.h])
+       AC_CHECK_FUNCS([pango_ft2_font_map_create_context])
+       AC_SUBST(PANGO_FT2_CFLAGS)
+       AC_SUBST(PANGO_FT2_LIBS)
+       CPPFLAGS="$save_CPPFLAGS"
+       LIBS="$save_LIBS"
+    else
+       # UGR
+       #r="lib$1-dev or $1-devel"e
+       r="libpango1.0-dev or pango?-devel"
+       ver="`pkg-config --modversion $1`"
+       STEPMAKE_ADD_ENTRY($2, ["$r >= $3 (It is required if you'd like "])
+       STEPMAKE_ADD_ENTRY($2, ["to use OpenType font feature. "])
+       STEPMAKE_ADD_ENTRY($2, ["installed: $ver)"])
+    fi
+])
+
+AC_DEFUN(STEPMAKE_FONTCONFIG, [
+    PKG_CHECK_MODULES(FONTCONFIG, $1 >= $3, have_fontconfig=yes, true)
+    if test "$have_fontconfig" = yes ; then
+       AC_DEFINE(HAVE_FONTCONFIG)
+       # Do not pollute user-CPPFLAGS with configure-CPPFLAGS
+        save_CPPFLAGS="$CPPFLAGS"
+        save_LIBS="$LIBS"
+       CPPFLAGS="$FONTCONFIG_CFLAGS $CPPFLAGS"
+       LIBS="$FONTCONFIG_LIBS $LIBS"
+       AC_SUBST(FONTCONFIG_CFLAGS)
+       AC_SUBST(FONTCONFIG_LIBS)
+       CPPFLAGS="$save_CPPFLAGS"
+       LIBS="$save_LIBS"
+    else
+       r="lib$1-dev or $1-devel"
+       ver="`pkg-config --modversion $1`"
+       STEPMAKE_ADD_ENTRY($2, ["$r >= $3 (installed: $ver)"])
+    fi
+])
+
+AC_DEFUN(STEPMAKE_WINDOWS, [
+    AC_CYGWIN
+    AC_MINGW32
+
+    if test "$CYGWIN" = "yes"; then
+       LN_S='cp -r' # Cygwin symbolic links do not work for native apps.
+       program_suffix=.exe
+       INSTALL="\$(SHELL) \$(stepdir)/../bin/install-dot-exe.sh -c"
+    elif test "$MINGW32" = "yes"; then
+       LN='cp -r'
+       LN_S='cp -r'
+       program_suffix=.exe
+       INSTALL="\$(SHELL) \$(stepdir)/../bin/install-dot-exe.sh -c"
+       PATHSEP=';'
+    fi
+
+    AC_SUBST(LN)
+    AC_SUBST(LN_S)
+    AC_DEFINE_UNQUOTED(DIRSEP, ['${DIRSEP}'])
+    AC_DEFINE_UNQUOTED(PATHSEP, ['${PATHSEP}'])
+    AC_SUBST(DIRSEP)
+    AC_SUBST(PATHSEP)
+    AC_SUBST(program_suffix)
+
+    AC_MSG_CHECKING([for some flavor of Windows])
+    if test "$CYGWIN$MINGW32" = "nono"; then
+        PLATFORM_WINDOWS=no
+    else
+        PLATFORM_WINDOWS=yes
+    fi
+    AC_MSG_RESULT([$PLATFORM_WINDOWS])
+    AC_SUBST(PLATFORM_WINDOWS)
+    STEPMAKE_PROGS(WINDRES, $target-windres windres, x)
+    AC_SUBST(WINDRES)
+])