From: stevenj <stevenj@alum.mit.edu>
Date: Wed, 7 Jul 2010 15:17:05 +0000 (-0400)
Subject: better checking for Python and Numpy include directories; thanks to Nathaniel Smith... 
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=8164b6e3b9f9f3854a50c6b5262fec8e7175d7a6;p=nlopt.git

better checking for Python and Numpy include directories; thanks to Nathaniel Smith for the tip about numpy.get_include()

darcs-hash:20100707151705-c8de0-ce47965d05109ef499e8cbe8b395a682818c0804.gz
---

diff --git a/configure.ac b/configure.ac
index 8a49f13..74520c3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -153,24 +153,25 @@ else
 dnl Python:
 AM_PATH_PYTHON([],[have_python=yes],[have_python=no])
 if test $have_python = yes; then
-  pdir=`dirname $pythondir | sed 's,/lib/,/include/,'`
-  pdir=`eval echo $pdir`
   AC_MSG_CHECKING([for Python include directory])
-  for PYTHON_INCLUDE_DIR in "$pdir" /usr/include/python$PYTHON_VERSION /usr/local/include/python$PYTHON_VERSION unknown; do
-    test -d "$PYTHON_INCLUDE_DIR" && break
-  done
-  AC_MSG_RESULT([$PYTHON_INCLUDE_DIR])
-  if test "x$PYTHON_INCLUDE_DIR" = xunknown; then
-     AC_MSG_WARN([disabling Python wrappers])
-     have_python=no
-  else
-     save_CPPFLAGS=$CPPFLAGS
-     CPPFLAGS="$CPPFLAGS -I$PYTHON_INCLUDE_DIR"
-     AC_CHECK_HEADER([numpy/arrayobject.h],[],[
-          AC_MSG_WARN([disabling Python wrappers])
-     	  have_python=no],[#include <Python.h>])
-     CPPFLAGS=$save_CPPFLAGS
+  pinc=`echo "import distutils.sysconfig; print distutils.sysconfig.get_python_inc()" | $PYTHON - 2>/dev/null`
+  AC_MSG_RESULT([${pinc:-unknown}])
+  test -n "$pinc" && PYTHON_INCLUDES="-I$pinc"
+  save_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$CPPFLAGS $PYTHON_INCLUDES"
+  AC_CHECK_HEADER([Python.h], [], [AC_MSG_WARN([disabling Python wrappers]) 
+                                   have_python=no])
+  if test $have_python = yes; then
+    AC_MSG_CHECKING([for Numpy include directory])
+    pinc=`echo "import numpy; print numpy.get_include()" | $PYTHON - 2>/dev/null`
+    AC_MSG_RESULT([${pinc:-unknown}])
+    test -n "$pinc" && PYTHON_INCLUDES="$PYTHON_INCLUDES -I$pinc"
+    CPPFLAGS="$save_CPPFLAGS $PYTHON_INCLUDES"
+    AC_CHECK_HEADER([numpy/arrayobject.h],[],[
+      AC_MSG_WARN([disabling Python wrappers])
+      have_python=no],[#include <Python.h>])
   fi
+  CPPFLAGS=$save_CPPFLAGS
 fi
 
 fi # with_python
@@ -180,7 +181,7 @@ fi # if enable_shared
 AC_SUBST(GUILE_SITEDIR)
 AC_SUBST(GUILE_CPPFLAGS)
 AC_SUBST(GUILE_LIBS)
-AC_SUBST(PYTHON_INCLUDE_DIR)
+AC_SUBST(PYTHON_INCLUDES)
 AM_CONDITIONAL(WITH_GUILE, test x"$GUILE_CONFIG" != "xunknown")
 AM_CONDITIONAL(WITH_PYTHON, test x"$have_python" = "xyes")
 
diff --git a/swig/Makefile.am b/swig/Makefile.am
index 2434d71..e22bb62 100644
--- a/swig/Makefile.am
+++ b/swig/Makefile.am
@@ -25,7 +25,7 @@ endif
 _nlopt_la_SOURCES = nlopt-python.cpp
 _nlopt_la_LIBADD = ../libnlopt@NLOPT_SUFFIX@.la
 _nlopt_la_LDFLAGS = -module -no-undefined -version-info @SHARED_VERSION_INFO@
-_nlopt_la_CPPFLAGS = -I$(PYTHON_INCLUDE_DIR) -I$(top_builddir)/api
+_nlopt_la_CPPFLAGS = $(PYTHON_INCLUDES) -I$(top_builddir)/api
 
 if WITH_PYTHON
 python_PYTHON = nlopt.py