configure: Make sure Python is available for static builds

We need Python to create files that reference the plugin constructors.
Without it, empty files are created and plugins can't be loaded.

Fixes #3349.

diff --git a/configure.ac b/configure.ac
index 2836a500e782fec245f5c3788ac53a47a1308fbd..caaf667a04a00744b5dcf8836d2e9e3c00b5c5d1 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1379,6 +1379,9 @@ AC_CACHE_CHECK(
 )
 if test "x$ss_cv_static_plugin_constructors" = xyes; then
        static_plugin_constructors=true
+       if test "$PYTHON" = ":"; then
+               AC_MSG_FAILURE([Python is required to resolve plugin constructors statically])
+       fi
 fi
 
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