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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
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')
-rw-r--r--include/ChangeLog6
-rw-r--r--include/getopt.h9
-rw-r--r--include/libiberty.h9
3 files changed, 22 insertions, 2 deletions
diff --git a/include/ChangeLog b/include/ChangeLog
index 3658cc4..5a0ddf5 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,9 @@
+2000-05-23 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
+
+ * getopt.h (getopt): Also check HAVE_DECL_* when prototyping.
+
+ * libiberty.h (basename): Likewise.
+
2000-05-06 Zack Weinberg <zack@wolery.cumb.org>
* ansidecl.h: #define __extension__ to nothing if
diff --git a/include/getopt.h b/include/getopt.h
index fb30719a..9620fc7 100644
--- a/include/getopt.h
+++ b/include/getopt.h
@@ -99,13 +99,20 @@ struct option
#define optional_argument 2
#if defined (__STDC__) && __STDC__
-#ifdef __GNU_LIBRARY__
+/* 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 (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT)
/* Many other libraries have conflicting prototypes for getopt, with
differences in the consts, in stdlib.h. To avoid compilation
errors, only prototype getopt for the GNU C library. */
extern int getopt (int argc, char *const *argv, const char *shortopts);
#else /* not __GNU_LIBRARY__ */
+# if !defined (HAVE_DECL_GETOPT)
extern int getopt ();
+# endif
#endif /* __GNU_LIBRARY__ */
extern int getopt_long (int argc, char *const *argv, const char *shortopts,
const struct option *longopts, int *longind);
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.