From 519e7f0669d61c1d339d156f96469bbd68a328e3 Mon Sep 17 00:00:00 2001
From: Nickolai Zeldovich <kolya@mit.edu>
Date: Mon, 26 Apr 2004 22:39:33 +0000
Subject: [PATCH] check-if-compiler-supports-__FUNCTION__-macro-20040426

Add an autoconf check to see if the compiler supports __FUNCTION__ and __LINE__
---
 acinclude.m4             |  1 +
 src/cf/function-macro.m4 | 15 +++++++++++++++
 2 files changed, 16 insertions(+)
 create mode 100644 src/cf/function-macro.m4

diff --git a/acinclude.m4 b/acinclude.m4
index 937657b..a1a204c 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -91,6 +91,7 @@ dnl Various compiler setup.
 AC_TYPE_PID_T
 AC_TYPE_SIZE_T
 AC_TYPE_SIGNAL
+COMPILER_HAS_FUNCTION_MACRO
 
 dnl Checks for programs.
 AC_PROG_INSTALL
diff --git a/src/cf/function-macro.m4 b/src/cf/function-macro.m4
new file mode 100644
index 0000000..ea11ecb
--- /dev/null
+++ b/src/cf/function-macro.m4
@@ -0,0 +1,15 @@
+AC_DEFUN(COMPILER_HAS_FUNCTION_MACRO, [
+AC_MSG_CHECKING(for __FUNCTION__ and __LINE__ macros)
+AC_CACHE_VAL(ac_cv_compiler_has_function_macro,
+[
+AC_TRY_COMPILE(
+[#include <stdio.h>],
+[printf("%s:%d", __FUNCTION__, __LINE__);],
+ac_cv_compiler_has_function_macro=yes,
+ac_cv_compiler_has_function_macro=no)])
+AC_MSG_RESULT($ac_cv_compiler_has_function_macro)
+if test "$ac_cv_compiler_has_function_macro" = "yes"; then
+  AC_DEFINE(HAVE_FUNCTION_MACRO, 1, [define if compiler has __FUNCTION__])
+fi
+])
+
-- 
1.9.4