configure.ac: fixed python3-config detection.

diff --git a/configure.ac b/configure.ac
index 1b2aeb531b78dd7f55ef6a02ce9e42a697d7e773..eb27cefe87c18d08c9510bbdcd5cb25655cbf640 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -76,38 +76,30 @@ AM_PATH_GLIB_2_0([2.22.0],
         [CFLAGS="$CFLAGS $GLIB_CFLAGS"; LIBS="$LIBS $GLIB_LIBS"])
 
 # Python support. We require at least Python >= 3.0.
+AC_ARG_VAR([PYTHON_CONFIG], [path to python3-config utility])
+AC_CHECK_PROGS([PYTHON_CONFIG], [python3-config python3.2-config python3.1-config python3.0-config])
 CPPFLAGS_PYTHON=""
 LDFLAGS_PYTHON=""
 case "$build" in
-*linux*)
-       # We know that Linux has 'python3-config'.
-       CPPFLAGS_PYTHON="$(python3-config --includes)"
-       LDFLAGS_PYTHON="$(python3-config --ldflags)"
-       ;;
-*darwin*)
-       # On Darwin, Macports has python3.x-config, fink has python3-config.
-       # Mac OS X (Snow Leopard) ships with 'python-config' per default, but
-       # that's Python 2.x, so not useful for us.
-       if test -x python3-config; then
-               # python3-config exists, use it.
-               CPPFLAGS_PYTHON="$(python3-config --includes)"
-               LDFLAGS_PYTHON="$(python3-config --ldflags)"
-       else
-               # No python3-config found, so try hardcoded python3.2-config.
-               CPPFLAGS_PYTHON="$(python3.2-config --includes)"
-               LDFLAGS_PYTHON="$(python3.2-config --ldflags)"
-       fi
-       ;;
 *mingw*)
        # We currently hardcode the paths to the Python 3.2 default install
        # location as there's no 'python-config' script on Windows, it seems.
+       AC_MSG_WARN([using hardcoded python configuration])
        CPPFLAGS_PYTHON="-I/c/Python32/include"
        LDFLAGS_PYTHON="-L/c/Python32/libs -lpython32"
        ;;
 *)
-       # Everything else is untested, we just hope 'python3-config' works.
-       CPPFLAGS_PYTHON="$(python3-config --includes)"
-       LDFLAGS_PYTHON="$(python3-config --ldflags)"
+       # We know that Linux has 'python3-config'.
+       # On Darwin, Macports has python3.x-config, fink has python3-config.
+       # Mac OS X (Snow Leopard) ships with 'python-config' per default, but
+       # that's Python 2.x, so not useful for us.
+       # Everything else is untested, we just hope 'PYTHON_CONFIG' works.
+       if test -n "$PYTHON_CONFIG"; then
+               CPPFLAGS_PYTHON="$($PYTHON_CONFIG --includes)"
+               LDFLAGS_PYTHON="$($PYTHON_CONFIG --ldflags)"
+       else
+               AC_MSG_ERROR([python3-config not found])
+       fi
        ;;
 esac
 AC_SUBST(CPPFLAGS_PYTHON)