Attachment 9856 Details for Bug 2607 – XORG_VISIBILITY macro

[patch] XORG_VISIBILITY macro

visibility-macro.diff (text/plain), 1.15 KB, created by Tilman Sauerbeck on 2007-05-03 12:06:30 UTC

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Creator: Tilman Sauerbeck

Created: 2007-05-03 12:06:30 UTC

Size: 1.15 KB

patch

obsolete

>diff --git a/configure.ac b/configure.ac
>index ad8b250..676a70d 100644
>--- a/configure.ac
>+++ b/configure.ac
>@@ -23,7 +23,7 @@ dnl Process this file with autoconf to create configure.
> 
> AC_PREREQ([2.57])
> AC_INIT([util-macros],
>-        [1.1.5],
>+        [1.1.6],
>         [https://bugs.freedesktop.org/enter_bug.cgi?product=xorg])
> AM_INIT_AUTOMAKE([foreign dist-bzip2])
> 
>diff --git a/xorg-macros.m4.in b/xorg-macros.m4.in
>index 11b1419..691460b 100644
>--- a/xorg-macros.m4.in
>+++ b/xorg-macros.m4.in
>@@ -419,3 +419,32 @@ AC_SUBST(LINTLIB)
> AM_CONDITIONAL(MAKE_LINT_LIB, [test x$make_lint_lib != xno])
> 
> ]) # XORG_LINT_LIBRARY
>+
>+# XORG_GCC_VISIBILITY()
>+# --------------------------
>+# Minimum version: 1.1.6
>+#
>+# Adds -fvisibility=hidden to CFLAGS if running with gcc 4 or greater.
>+#
>+
>+AC_DEFUN([XORG_VISIBILITY],[
>+
>+AC_MSG_CHECKING([whether the compiler supports the visibility arg])
>+
>+dnl Check for gcc4 or greater
>+AC_TRY_COMPILE([
>+void
>+#if defined(__GNUC__) && (__GNUC__ >= 4)
>+foo () {};
>+#endif
>+], [], [
>+  has_visibility=yes
>+  CFLAGS="$CFLAGS -fvisibility=hidden"
>+], [
>+  has_visibility=no
>+]
>+)
>+
>+AC_MSG_RESULT($has_visibility)
>+
>+]) # XORG_GCC_VISIBILITY

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