[java-atk-wrapper] Replace GNOME_COMPILE_WARNINGS with AX_COMPILER_FLAGS

[Samuel Thibault <sthibaul src gnome org>]

commit 52ba2996ec091ca924dec7c136aa5787c494f072
Author: Samuel Thibault <samuel thibault ens-lyon org>
Date:   Mon May 20 21:01:11 2019 +0200

    Replace GNOME_COMPILE_WARNINGS with AX_COMPILER_FLAGS
    
    https://bugzilla.gnome.org/show_bug.cgi?id=768824

 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/configure.ac b/configure.ac
index be07973..8f8a6ea 100644
--- a/configure.ac
+++ b/configure.ac
@@ -123,7 +123,7 @@ else
 fi
 AC_SUBST(JAW_CFLAGS)
 
-GNOME_COMPILE_WARNINGS([error])
+AX_COMPILER_FLAGS()
 case "$WARN_CFLAGS" in
     *-Werror*)
         WARN_CFLAGS="$WARN_CFLAGS -Wno-error=deprecated-declarations"