Note about use of GCC extensions.

[disorder] / configure.ac

diff --git a/configure.ac b/configure.ac
index 1d95de316a02a3008eaee4396a28384bf68a45b7..7346b9c72485815363c22b262bbe16152be3b320 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1,3 +1,4 @@
+
 # Process this file with autoconf to produce a configure script.
 #
 # This file is part of DisOrder.
@@ -20,9 +21,9 @@
 # USA
 #
 
-AC_INIT([disorder], [3.0+fixes], [richard+disorder@sfere.greenend.org.uk])
+AC_INIT([disorder], [3.0+], [richard+disorder@sfere.greenend.org.uk])
 AC_CONFIG_AUX_DIR([config.aux])
-AM_INIT_AUTOMAKE(disorder, [3.0+fixes])
+AM_INIT_AUTOMAKE(disorder, [3.0+])
 AC_CONFIG_SRCDIR([server/disorderd.c])
 AM_CONFIG_HEADER([config.h])
 
@@ -427,6 +428,10 @@ AC_CHECK_FUNCS([fdatasync],[:],[
 if test ! -z "$missing_functions"; then
   AC_MSG_ERROR([missing functions:$missing_functions])
 fi
+
+# Functions we can take or leave
+AC_CHECK_FUNCS([fls])
+
 if test $want_server = yes; then
   # <db.h> had better be version 3 or later
   AC_CACHE_CHECK([db.h version],[rjk_cv_db_version],[
@@ -450,6 +455,11 @@ if test $want_server = yes; then
   fi
 fi
 
+AM_CONDITIONAL([SERVER], [test x$want_server = xyes])
+if test $want_gtk = yes; then
+  AC_DEFINE([WITH_GTK], [1], [define if using GTK+])
+fi
+
 if test "x$GCC" = xyes; then
   # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29478
   AC_CACHE_CHECK([checking for GCC bug 29478],[rjk_cv_pr29478],[
@@ -488,7 +498,12 @@ if test "x$GCC" = xyes; then
                    rjk_cv_werror, [
       save_CFLAGS="${CFLAGS}"
       CFLAGS="${CFLAGS} ${GTK_CFLAGS} -Werror"
-      AC_TRY_COMPILE([#include <gtk/gtk.h>],
+      AC_TRY_COMPILE([#if WITH_GTK
+ #include <gtk/gtk.h>
+#endif
+
+struct s { int a, b; };
+const struct s sv = { .a = 1 };],
                     [],
                     [rjk_cv_werror=yes],
                     [rjk_cv_werror=no])