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authorKaveh R. Ghazi <ghazi@caip.rutgers.edu>2000-05-23 17:42:19 +0000
committerKaveh Ghazi <ghazi@gcc.gnu.org>2000-05-23 17:42:19 +0000
commitf31e826ba314bc910beec6de5bf534f2462a00c7 (patch)
tree2d8c701cdb99568d7922c37d21a7fda0f8ea9913 /include/libiberty.h
parent04de731462db7abf438903fa71b850ac046f1067 (diff)
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getopt.h (getopt): Also check HAVE_DECL_* when prototyping.
include: * getopt.h (getopt): Also check HAVE_DECL_* when prototyping. * libiberty.h (basename): Likewise. gcc: * aclocal.m4 (gcc_AC_CHECK_DECL, gcc_AC_CHECK_DECLS): New macros rewritten from the internals of gcc_AC_NEED_DECLARATION{S}. * configure.in (gcc_AC_CHECK_DECLS): Call this instead of gcc_AC_NEED_DECLARATIONS. * dwarfout.c: Don't prototype time(). * gcc.c: Check HAVE_DECL_* instead of NEED_DECLARATION_*. * system.h: Likewise. * toplev.c: Likewise. From-SVN: r34108
Diffstat (limited to 'include/libiberty.h')
-rw-r--r--include/libiberty.h9
1 files changed, 8 insertions, 1 deletions
diff --git a/include/libiberty.h b/include/libiberty.h
index 9a536a4..476e016 100644
--- a/include/libiberty.h
+++ b/include/libiberty.h
@@ -36,10 +36,17 @@ extern char **dupargv PARAMS ((char **)) ATTRIBUTE_MALLOC;
across different systems, sometimes as "char *" and sometimes as
"const char *" */
-#if defined (__GNU_LIBRARY__ ) || defined (__linux__) || defined (__FreeBSD__) || defined (__OpenBSD__) || defined (__CYGWIN__) || defined (__CYGWIN32__)
+/* HAVE_DECL_* is a three-state macro: undefined, 0 or 1. If it is
+ undefined, we haven't run the autoconf check so provide the
+ declaration without arguments. If it is 0, we checked and failed
+ to find the declaration so provide a fully prototyped one. If it
+ is 1, we found it so don't provide any declaration at all. */
+#if defined (__GNU_LIBRARY__ ) || defined (__linux__) || defined (__FreeBSD__) || defined (__OpenBSD__) || defined (__CYGWIN__) || defined (__CYGWIN32__) || (defined (HAVE_DECL_BASENAME) && !HAVE_DECL_BASENAME)
extern char *basename PARAMS ((const char *));
#else
+# if !defined (HAVE_DECL_BASENAME)
extern char *basename ();
+# endif
#endif
/* Concatenate an arbitrary number of strings, up to (char *) NULL.