Make GOB2 optional.

[upkg.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 752343f62616ae84dffb1c1b50c776cdbc143ee5..85dfd3cf92d3f93c8105558d10e7cc412ef21133 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-dnl Copyright © 2009-2012, 2015, 2019 Nick Bowler
+dnl Copyright © 2009-2012, 2015, 2019-2020 Nick Bowler
 dnl
 dnl License WTFPL2: Do What The Fuck You Want To Public License, version 2.
 dnl This is free software: you are free to do what the fuck you want to.
@@ -23,6 +23,8 @@ LTDL_INIT([nonrecursive])
 
 gl_INIT
 
+AC_CACHE_SAVE
+
 m4_include([lib/gnulib.mk])
 
 CHECK_GLIB_2([], [gobject])
@@ -47,10 +49,30 @@ AC_MSG_RESULT([$use_modlib])
 AM_CONDITIONAL([USE_LIBMODPLUG], [test x$use_modlib = xmodplug])
 AM_CONDITIONAL([USE_DUMMYMOD],   [test x$use_modlib = xnone])
 
-GOB2_CHECK([2.0.0])
+DX_PROG_GOB2([2.0.0], [have_gob2=yes], [have_gob2=no])
+AM_CONDITIONAL([HAVE_GOB2], [test x"$have_gob2" = x"yes"])
 
-AC_CONFIG_FILES([
-       Makefile
-       libuobject.pc
+AS_IF([test x"$have_gob2" != x"yes"], [dx_cv_gob2_dynamic_types=no])
+AC_CACHE_CHECK([Whether $GOB2 supports dynamic types],
+  [dx_cv_gob2_dynamic_types], [cat >conftest.gob <<'EOF'
+class :Conftest from G:Object (dynamic)
+{
+  public void test(void)
+  {
+  }
+}
+EOF
+dx_cv_gob2_dynamic_types=no
+AS_IF([$GOB2 conftest.gob >/dev/null 2>&1],
+[mv conftest.c conftest.inc
+save_CFLAGS=$CFLAGS save_LIBS=$LIBS
+CFLAGS="$GLIB_CFLAGS $CFLAGS"
+LIBS="$LIBS $GLIB_LIBS"
+AC_LINK_IFELSE([AC_LANG_PROGRAM([[#]include "conftest.inc"],
+[conftest_register_type(0);])], [dx_cv_gob2_dynamic_types=yes])
+CFLAGS=$save_CFLAGS LIBS=$save_LIBS])
 ])
+AM_CONDITIONAL([HAVE_GOB2_DYN], [test x"$dx_cv_gob2_dynamic_types" = x"yes"])
+
+AC_CONFIG_FILES([Makefile libuobject.pc])
 AC_OUTPUT