* configure.in: Use lily/main.cc as identifying source file.

[lilypond.git] / stepmake / aclocal.m4

diff --git a/stepmake/aclocal.m4 b/stepmake/aclocal.m4
index fe8d1a9f8cd220dc3db278bf6fb978a6d84b18b3..a4c8fddd70c5365134efd1475008ba8c42c84dc1 100644 (file)
--- a/stepmake/aclocal.m4
+++ b/stepmake/aclocal.m4
@@ -23,10 +23,12 @@ AC_DEFUN(STEPMAKE_GET_VERSION, [
     ## Workaround for broken Debian gcc version string:
     ##     gcc (GCC) 3.1.1 20020606 (Debian prerelease)
     ##
+    ## -V: Workaround for python
+    ##
     ## Assume, and hunt for, dotted version multiplet.
 
     changequote(<<, >>)dnl
-    "$1" --version 2>&1 | grep '[0-9]\.[0-9]' | head -1 | \
+    ("$1" --version || "$1" -V) 2>&1 | grep '[0-9]\.[0-9]' | head -1 | \
        sed -e 's/.*[^-.0-9]\([0-9][0-9]*\.[0-9][.0-9]*\).*/\1/'
     changequote([, ])dnl
 ])
@@ -640,8 +642,8 @@ AC_DEFUN(STEPMAKE_INIT, [
        AC_PATH_PROG(BASH, bash, $SHELL)
     fi
     AC_SUBST(SHELL)
-    
-    STEPMAKE_PATH_PROG(PYTHON, python, REQUIRED)
+
+    STEPMAKE_PYTHON(REQUIRED, 1.5)
 
     if expr "$MAKE" : '.*\(echo\)' >/dev/null; then
        $MAKE -v 2> /dev/null | grep GNU > /dev/null
@@ -878,10 +880,50 @@ AC_DEFUN(STEPMAKE_PERL, [
 ])
 
 
+AC_DEFUN(STEPMAKE_PYTHON, [
+    unset pv
+    AC_MSG_CHECKING([for python])
+    for python in $PYTHON python python2 python2.3 python2.2 python2.1 python2.0; do
+       AC_MSG_RESULT([$python])
+       if ! $python -V > /dev/null 2>&1 ; then
+           #AC_MSG_WARN([cannot execute $python])
+           PYTHON='echo no python'
+       else
+           unset pv
+           STEPMAKE_CHECK_VERSION(python, pv, $2)
+           if test -z "$pv"; then
+               PYTHON=$python
+               break
+           fi
+       fi
+    done
+    if test -n "$pv"; then
+       STEPMAKE_ADD_ENTRY($1, $pv)
+    fi
+    AC_SUBST(PYTHON)
+])
+
 AC_DEFUN(STEPMAKE_PYTHON_DEVEL, [
-    AC_CHECK_HEADERS([python2.2/Python.h python2.1/Python.h python2.0/Python.h python2/Python.h python/Python.h python1.5/Python.h Python.h],[PYTHON_HEADER=yes])
+    unset PYTHON_HEADER PYTHON_INCLUDE
+    if test -n "$PYTHON"; then
+       changequote(<<, >>)dnl
+       # alternatively, for python >= 2.0
+       # 'import sys, distutils.sysconfig; sys.stdout.write (distutils.sysconfig.get_python_inc ())'
+       PYTHON_INCLUDE=`$PYTHON -c 'import sys; sys.stdout.write ("%s/include/python%s" % (sys.prefix, sys.version[:3]))'`
+       changequote([, ])dnl
+    fi
+    
+    ##AC_CHECK_HEADERS([Python.h],[PYTHON_HEADER=yes])
+    if test -z "$PYTHON_HEADER"; then
+       #URG -- how to extend include path?
+       ac_compile="$ac_compile -I$PYTHON_INCLUDE"
+       ac_cpp="$ac_cpp -I$PYTHON_INCLUDE"
+       CPPFLAGS="$CPPFLAGS -I$PYTHON_INCLUDE"
+       AC_CHECK_HEADERS([Python.h],[PYTHON_HEADER=yes])
+    fi
+    
     if test -z "$PYTHON_HEADER"; then
-       warn='python.h (python-devel, python-dev or libpython-dev package)'
+       warn="$PYTHON_INCLUDE/Python.h (python-devel, python-dev or libpython-dev package)"
        STEPMAKE_ADD_ENTRY($1, $warn)
     fi
 ])