>From the gcc manual:
`__FUNCTION__' is another name for `__func__'. Older versions of GCC
recognize only this name. However, it is not standardized. For
maximum portability, we recommend you use `__func__', but provide a
fallback definition with the preprocessor:
#if __STDC_VERSION__ < 199901L
# if __GNUC__ >= 2
# define __func__ __FUNCTION__
# else
# define __func__ "<unknown>"
# endif
#endif
The __func__ module will add the block above to config.h, to make sure
that __func__ is usable.
If there are other pre-C99 compilers that use other ways of printing the
function name, I suppose the module could be extended with those.
What do you think?
I was unsure where to document this, it isn't either a function or
header file, strictly speaking.
/Simon
diff --git a/ChangeLog b/ChangeLog
index 040fffa..f58fa96 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2008-02-28 Simon Josefsson <[EMAIL PROTECTED]>
+
+ * modules/__func__: New module.
+
+ * m4/__func__.m4: New file.
+
2008-02-28 Sergey Poznyakoff <[EMAIL PROTECTED]>
* build-aux/bootstrap (source_base, m4_base)
# __func__.m4 serial 1
dnl Copyright (C) 2008 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
# Written by Simon Josefsson
AC_DEFUN([gl___FUNC__],
[
AC_MSG_NOTICE([making sure __func__ is available])
AH_VERBATIM(__FUNC__, [
#if __STDC_VERSION__ < 199901L
# if __GNUC__ >= 2
# define __func__ __FUNCTION__
# else
# define __func__ "<unknown>"
# endif
#endif
])
])
Description:
Make sure __func__ is usable even on non-C99 platforms.
Files:
m4/__func__.m4
Depends-on:
configure.ac:
gl___FUNC__
Makefile.am:
Include:
License:
LGPL
Maintainer:
Simon Josefsson
