C99 bfd configury

Certain library headers and functions are required by C99.  This
removes configure tests for them.  The patch also removes AC_ISC_POSIX
and AC_HEADER_DIRENT, which the autoconf manual states are obsolescent.
sys/time.h is no longer tangled up with time.h so it can be handled by
the gprof configure.

	* configure.ac: Don't check for long long or long double type.
	Don't check for alloca.h, limits.h, stddef.h, stdlib.h, string.h,
	strings.h, time.h, wchar.h, wctype.h or sys/time.h.  Don't check
	for strtoull, free, malloc, realloc, getenv, strstr, snprintf,
	vsnprintf, strlen or setitimer.  Sort AC_CHECK_DECLS.
	(AC_ISC_POSIX): Don't invoke.
	(AC_HEADER_TIME, AC_HEADER_DIRENT, ACX_HEADER_STRING): Likewise.
	* sysdep.h: Remove many HAVE_*_H checks and fallback declarations.
	Do test HAVE_SYS_TYPES_H.  Don't include sys/time.h.  Reorder
	header order as per automake AC_INCLUDES_DEFAULT.
	* bfd-in.h: Include inttypes.h unconditionally.
	* bfd.c (_bfd_doprnt, _bfd_doprnt_scan): Assume long long and
	long double are available.
	(bfd_scan_vma): Assume long long and strtoull are available.
	* elflink.c: Include limits.h unconditionally.
	* elfnn-riscv.c: Likewise.
	* wasm-module.c: Likewise.
	* hpux-core.c: Include dirent.h unconditionally.
	* trad-core.c: Likewise.
	* hosts/x86-64linux.h: Include stdlib.h unconditionally.
	* peXXigen.c: Remove HAVE_WCHAR_H and HAVE_WCTYPE_H checks.
	* elf32-m68hc1x.c: Don't include alloca-conf.h.
	* elf64-hppa.c: Likewise.
	* som.c: Likewise.
	* wasm-module.c: Likewise.
	* xsym.c: Likewise.
	* bfd-in2.h: Regenerate.
	* config.in: Regenerate.
	* configure: Regenerate.

1 files changed, 7 insertions, 62 deletions

diff --git a/bfd/sysdep.h b/bfd/sysdep.h
index c0b96ef..aa6b095 100644
--- a/bfd/sysdep.h
+++ b/bfd/sysdep.h
@@ -27,54 +27,23 @@
 #endif
 
 #include "config.h"
-
-#ifdef HAVE_STDDEF_H
-#include <stddef.h>
-#endif
-
 #include <stdio.h>
-#include <sys/types.h>
 
-#include <errno.h>
-#if !(defined(errno) || defined(_MSC_VER) && defined(_INC_ERRNO))
-extern int errno;
-#endif
-
-#ifdef STRING_WITH_STRINGS
-#include <string.h>
-#include <strings.h>
-#else
-#ifdef HAVE_STRING_H
-#include <string.h>
-#else
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#else
-extern char *strchr ();
-extern char *strrchr ();
-#endif
-#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
 #endif
 
-#ifdef HAVE_STDLIB_H
 #include <stdlib.h>
-#endif
-
-#ifdef TIME_WITH_SYS_TIME
-#include <sys/time.h>
-#include <time.h>
-#else
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#else
-#include <time.h>
-#endif
-#endif
+#include <stddef.h>
+#include <string.h>
 
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
 #endif
 
+#include <errno.h>
+#include <time.h>
+
 #ifdef HAVE_SYS_RESOURCE_H
 #include <sys/resource.h>
 #endif /* HAVE_SYS_RESOURCE_H */
@@ -123,30 +92,10 @@ extern char *strrchr ();
 extern int ffs (int);
 #endif
 
-#if !HAVE_DECL_FREE
-extern void free ();
-#endif
-
-#if !HAVE_DECL_GETENV
-extern char *getenv ();
-#endif
-
-#if !HAVE_DECL_MALLOC
-extern PTR malloc ();
-#endif
-
-#if !HAVE_DECL_REALLOC
-extern PTR realloc ();
-#endif
-
 #if !HAVE_DECL_STPCPY
 extern char *stpcpy (char *__dest, const char *__src);
 #endif
 
-#if !HAVE_DECL_STRSTR
-extern char *strstr ();
-#endif
-
 #ifdef HAVE_FTELLO
 #if !HAVE_DECL_FTELLO
 extern off_t ftello (FILE *stream);
@@ -171,10 +120,6 @@ extern int fseeko64 (FILE *stream, off64_t offset, int whence);
 #endif
 #endif
 
-#if !HAVE_DECL_STRNLEN
-size_t strnlen (const char *, size_t);
-#endif
-
 /* Define offsetof for those systems which lack it */
 
 #ifndef offsetof