From b98a5bf92222e37eb62422f65ecc048511a8f256 Mon Sep 17 00:00:00 2001
From: James Peach <jpeach@samba.org>
Date: Tue, 31 Jan 2006 00:00:10 +0000
Subject: r13243: Bring __FUNCTION__ checks across from Samba 3. (This used to
 be commit 92eec049628a79f8d9496c6d199d6de0238e7940)

---
 source4/build/m4/check_cc.m4 |  8 ++++++++
 source4/include/debug.h      | 10 +++++++++-
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/source4/build/m4/check_cc.m4 b/source4/build/m4/check_cc.m4
index f65adbbca4..a2d2bae79b 100644
--- a/source4/build/m4/check_cc.m4
+++ b/source4/build/m4/check_cc.m4
@@ -187,3 +187,11 @@ fi
 AC_SUBST(HOSTCC)
 
 AC_PATH_PROG(GCOV,gcov)
+
+AC_CACHE_CHECK([for __FUNCTION__ macro],samba_cv_HAVE_FUNCTION_MACRO,[
+AC_TRY_COMPILE([#include <stdio.h>], [printf("%s\n", __FUNCTION__);],
+samba_cv_HAVE_FUNCTION_MACRO=yes,samba_cv_HAVE_FUNCTION_MACRO=no)])
+if test x"$samba_cv_HAVE_FUNCTION_MACRO" = x"yes"; then
+    AC_DEFINE(HAVE_FUNCTION_MACRO,1,[Whether there is a __FUNCTION__ macro])
+fi
+
diff --git a/source4/include/debug.h b/source4/include/debug.h
index 40d04766e1..8ff937e7b9 100644
--- a/source4/include/debug.h
+++ b/source4/include/debug.h
@@ -18,6 +18,14 @@
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
 
+/* If we have these macros, we can add additional info to the header. */
+
+#ifdef HAVE_FUNCTION_MACRO
+#define FUNCTION_MACRO  (__FUNCTION__)
+#else
+#define FUNCTION_MACRO  ("")
+#endif
+
 /* the debug operations structure - contains function pointers to 
    various debug implementations of each operation */
 struct debug_ops {
@@ -44,7 +52,7 @@ extern int DEBUGLEVEL;
 #define _DEBUG(level, body, header) do { \
 	if (DEBUGLVL(level)) { \
 		if (header) { \
-			do_debug_header(level, __location__, __FUNCTION__); \
+			do_debug_header(level, __location__, FUNCTION_MACRO); \
 		} \
 		do_debug body; \
 	} \
-- 
cgit