Update the Python checks for cross-compiling.

Change-Id: I1066c9108fd31682bd238df50bdf1cab0a05d3ec

configure.ac

@@ -7389,8 +7389,8 @@ if test $enable_python = system; then
                 # 2.6.2 currently on OpenSUSE 12.1?
                 # rpm -q mingw32-python => mingw32-python-2.6.2-17.17.noarch
                 PYTHON_VERSION=$python_version.2
-                PYTHON_MAJOR=${python_version%.*}
-                PYTHON_MINOR=${python_version#*.}
+                PYTHON_VERSION_MAJOR=${python_version%.*}
+                PYTHON_VERSION_MINOR=${python_version#*.}
                 break
             fi
         done
@@ -7403,6 +7403,7 @@ case $enable_python in
 system)
     SYSTEM_PYTHON=YES
 
+    if test "$CROSS_COMPILING" != YES; then
         dnl Check if the headers really work
         save_CPPFLAGS="$CPPFLAGS"
         CPPFLAGS="$CPPFLAGS $PYTHON_CFLAGS"
@@ -7427,6 +7428,7 @@ int main(int argc, char **argv) {
         AC_LANG_POP(C)
 
         dnl FIXME Check if the Python library can be linked with, too?
+    fi
     ;;
 
 internal)