Update.

1999-06-18  Zack Weinberg  <zack@rabi.columbia.edu>

	* include/features.h: Define new macros __GNUC_PREREQ and
	__GLIBC_PREREQ which can be used to test the version of gcc
	and glibc respectively.

	* assert/assert.h: Use __GNUC_PREREQ.
	* intl/libintl.h: Likewise.
	* math/complex.h: Likewise.
	* math/tgmath.h: Likewise.
	* misc/sys/cdefs.h: Likewise.
	* posix/sys/types.h: Likewise.
	* socket/sys/socket.h: Likewise.
	* string/bits/string2.h: Likewise.
	* sysdeps/alpha/fpu/bits/mathinline.h: Likewise.
	* sysdeps/i386/fpu/bits/mathinline.h: Likewise.

1999-06-18  Zack Weinberg  <zack@rabi.columbia.edu>

	* include/libintl.h: Declare _libc_intl_domainname here.
	Define _ and N_ here.
	* include/libc-symbols.h: Don't include <libintl.h>.  Don't
	define _ and N_.  Don't declare _libc_intl_domainname.
	* Makeconfig (CPPFLAGS): Use -imacros to read libc-symbols.h.

	* db2/config.h: Don't include sys/stat.h or define
	HAVE_ST_BLKSIZE here...
	* db2/compat.h: ...do it here.

	* linuxthreads/internals.h: Include bits/libc-tsd.h after all
	other headers.
	* linuxthreads/no-tsd.c: Include sys/cdefs.h for __P.
	* iconv/iconv.c: Include stddef.h for NULL.
	* malloc/malloc.h: Include features.h.
	* sysdeps/generic/morecore.c: Use __malloc_ptr_t not __ptr_t.

	* sysdeps/unix/make_errlist.c: Write an "#include <libintl.h>"
	into the generated file.
	* sysdeps/gnu/errlist.awk: Likewise.
	* sysdeps/gnu/errlist.c: Rebuilt.

	* assert/assert-perr.c: Include libintl.h.
	* assert/assert.c: Likewise.
	* elf/dl-open.c: Likewise.
	* elf/dlsym.c: Likewise.
	* elf/dlvsym.c: Likewise.
	* iconv/iconv_prog.c: Likewise.
	* inet/rcmd.c: Likewise.
	* inet/ruserpass.c: Likewise.
	* locale/programs/charset.c: Likewise.
	* locale/programs/ld-collate.c: Likewise.
	* locale/programs/ld-ctype.c: Likewise.
	* locale/programs/ld-messages.c: Likewise.
	* locale/programs/ld-monetary.c: Likewise.
	* locale/programs/ld-numeric.c: Likewise.
	* locale/programs/ld-time.c: Likewise.
	* locale/programs/locfile.c: Likewise.
	* locale/programs/repertoire.c: Likewise.
	* login/programs/database.c: Likewise.
	* login/programs/request.c: Likewise.
	* malloc/mcheck.c: Likewise.
	* misc/error.c: Likewise.
	* nis/nis_call.c: Likewise.
	* nis/nis_callback.c: Likewise.
	* nis/nis_error.c: Likewise.
	* nis/nis_local_names.c: Likewise.
	* nis/nis_print.c: Likewise.
	* nis/nis_print_group_entry.c: Likewise.
	* nis/ypclnt.c: Likewise.
	* nis/nss_nisplus/nisplus-publickey.c: Likewise.
	* nscd/cache.c: Likewise.
	* nscd/connections.c: Likewise.
	* nscd/grpcache.c: Likewise.
	* nscd/hstcache.c: Likewise.
	* nscd/nscd_conf.c: Likewise.
	* nscd/nscd_stat.c: Likewise.
	* nscd/pwdcache.c: Likewise.
	* posix/id.c: Likewise.
	* resolv/herror.c: Likewise.
	* stdio-common/psignal.c: Likewise.
	* string/strsignal.c: Likewise.
	* sunrpc/auth_unix.c: Likewise.
	* sunrpc/clnt_perr.c: Likewise.
	* sunrpc/clnt_raw.c: Likewise.
	* sunrpc/clnt_tcp.c: Likewise.
	* sunrpc/clnt_udp.c: Likewise.
	* sunrpc/clnt_unix.c: Likewise.
	* sunrpc/get_myaddr.c: Likewise.
	* sunrpc/pm_getmaps.c: Likewise.
	* sunrpc/pmap_clnt.c: Likewise.
	* sunrpc/pmap_rmt.c: Likewise.
	* sunrpc/rpc_main.c: Likewise.
	* sunrpc/rpc_scan.c: Likewise.
	* sunrpc/svc_run.c: Likewise.
	* sunrpc/svc_simple.c: Likewise.
	* sunrpc/svc_tcp.c: Likewise.
	* sunrpc/svc_udp.c: Likewise.
	* sunrpc/svc_unix.c: Likewise.
	* sunrpc/xdr_rec.c: Likewise.
	* sunrpc/xdr_ref.c: Likewise.
	* sysdeps/mach/hurd/mips/dl-machine.c: Likewise.
	* sysdeps/posix/gai_strerror.c: Likewise.
	* sysdeps/unix/siglist.c: Likewise.
	* sysdeps/unix/sysv/linux/siglist.c: Likewise.
	* sysdeps/unix/sysv/linux/arm/siglist.c: Likewise.
	* sysdeps/unix/sysv/sysv4/solaris2/sparc/errlist.c: Likewise.
	* timezone/zic.c: Likewise.

1 files changed, 14 insertions, 0 deletions

diff --git a/include/features.h b/include/features.h
index bc10510415..de2b143b60 100644
--- a/include/features.h
+++ b/include/features.h
@@ -244,9 +244,23 @@
 #define	__GLIBC__	2
 #define	__GLIBC_MINOR__	2
 
+/* Convenience macros to test the versions of glibc and gcc.
+   Use them like this:
+   #if __GNUC_PREREQ (2,8)
+   ... code requiring gcc 2.8 or later ...
+   #endif
+   Note - they won't work for gcc1 or glibc1, since the _MINOR macros
+   were not defined then.  */
+#define __GNUC_PREREQ(maj,min) (defined __GNUC__ && defined __GNUC_MINOR__ \
+		&& ((__GNUC__ << 16) + __GNUC_MINOR__) >= ((maj<<16) + min))
+#define __GLIBC_PREREQ(maj,min) (defined __GLIBC__ && defined __GLIBC_MINOR__ \
+		&& ((__GLIBC__ << 16) + __GLIBC_MINOR__) >= ((maj<<16) + min))
+
 /* This is here only because every header file already includes this one.  */
 #ifndef __ASSEMBLER__
+#ifndef _SYS_CDEFS_H
 # include <sys/cdefs.h>
+#endif
 
 /* If we don't have __REDIRECT, prototypes will be missing if
    __USE_FILE_OFFSET64 but not __USE_LARGEFILE[64]. */