build: check for python-config in configure

Currently, configure succeeds when python is installed without its
development components, i.e. python-config and headers. The subsequent
make will fail when gcc cannot locate Python.h.

This patch fixes that behavior by throwing an error at configure-time if
python-config cannot be found.

Signed-off-by: Joel Savitz <joelsavitz@gmail.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>

diff --git a/configure.ac b/configure.ac
index 41321c1b5ea154269b424419424daac3919f0262..066c1ade62af9c1e7fdc1295a41b89597b59ad93 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -183,6 +183,8 @@ if test "x$with_bindings_python" = xtrue
 then
        AM_PATH_PYTHON([3.0], [],
                [AC_MSG_ERROR([python3 not found - needed for python bindings])])
+       AC_CHECK_FILE(["$PYTHON-config"], [],
+               [AC_MSG_ERROR([python3-config not found - needed for python bindings])])
        AS_IF([test -z "$PYTHON_CPPFLAGS"],
                [AC_SUBST(PYTHON_CPPFLAGS, [`$PYTHON-config --includes`])])
        AS_IF([test -z "$PYTHON_LIBS"],