Creates make log-clean and documents it

[lilypond.git] / stepmake / aclocal.m4

diff --git a/stepmake/aclocal.m4 b/stepmake/aclocal.m4
index c8e62a95591dc542dc1e4d3354718e3739655f63..b42851e57d32ba495b9ee823ada3a6358e27e553 100644 (file)
--- a/stepmake/aclocal.m4
+++ b/stepmake/aclocal.m4
@@ -287,12 +287,16 @@ AC_DEFUN(STEPMAKE_CXXTEMPLATE, [
 ])
 
 AC_DEFUN(STEPMAKE_GXXCODEGENBUG, [
-    AC_MSG_CHECKING([options for known g++ tail call bug])
+    AC_MSG_CHECKING([options for known g++ bugs])
     case "$GXX:$CXX_VERSION" in
-       yes:400600?)
-           AC_MSG_RESULT([-fno-optimize-sibling-calls])
+       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)
@@ -417,9 +421,22 @@ EOF
            exit 2
        fi
 
-       for d in 2 3 4 ; do
+       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
-               mkdir -p $(dirname $mf)
+               case "$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'
@@ -428,7 +445,18 @@ 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
-               mkdir -p $(dirname $mf)
+               case "$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'
@@ -928,7 +956,7 @@ AC_DEFUN(STEPMAKE_PATH_PROG, [
     AC_CHECK_PROGS($1, $2, no)
     STEPMAKE_OPTIONAL_REQUIRED($1, $2, $3)
     if test $? -eq 0; then
-       AC_PATH_PROG($1, $2)
+       AC_PATH_PROGS($1, $2)
        if test -n "$4"; then
            STEPMAKE_CHECK_VERSION($1, $3, $4)
        fi