update from main archive 961214 cvs/libc-961215

Sun Dec 15 01:53:20 1996  Ulrich Drepper  <drepper@cygnus.com>

	* Makefile (subdirs): Change crypt to md5-crypt.
	* crypt/Makefile, crypt/md5-crypt.c, crypt/md5.c, crypt/md5.h,
	crypt/md5c-test.c, crypt/md5test.c: Move to new directory
	md5-crypt.
	* sysdeps/unix/sysv/linux/configure.in: Refer to linuxthreads and
	crypt instead of LinuxThreads and des-crypt.

	* Makefile (subdirs): Add nss back.
	* sysdeps/unix/inet/Subdirs: Move nis to end of file to fulfill
	dependencies.

	* libio/iofclose.c: Implement fclose(NULL) as closing all streams.
	* stdio-common/Makefile (routines): Add fcloseall.
	* stdio-common/fcloseall.c: New file.
	* sysdeps/generic/abort.c: Make implementation POSIX.1 compatible.

	* sysdeps/mach/libc-lock.h: Add definition of __libc_lock_trylock.
	* sysdeps/stub/libc-lock.h: Define __libc_lock_trylock to always
	return 0.

	* stdio-common/printf.h: Define MIN and MAX only if not already
	defined.

	* stdio-common/vfprintf.c: Set errno to EBADF if stream does not
	allow writing.  Required by POSIX.1.

	* libio/libioP.h (CHECK_FILE): Use MAYBE_SET_EINVAL instead of
	assignment.

	* interp.c: Update copyright.
	* libio/clearerr.c: Likewise.
	* libio/ioseekoff.c: Likewise.
	* libio/ioseekpos.c: Likewise.
	* stdio/fclose.c: Likewise.
	* stdio/fflus.c: Likewise.

	* libio/libio.h [!_IO_MTSAFE_IO]: Define _IO_cleanup_region_start
	and _IO_cleanup_region_end as empty.
	* libio/fgetc.c: Use _IO_cleanup_region_start and
	_IO_cleanup_region_end instead of __libc_cleanup_region_start and
	__libc_cleanup_region_end.
	* libio/fputc.c: Likewise.
	* libio/freopen.c: Likewise.
	* libio/fseek.c: Likewise.
	* libio/getc.c: Likewise.
	* libio/getchar.c: Likewise.
	* libio/iofclose.c: Likewise.
	* libio/iofflush.c: Likewise.
	* libio/iofgetpos.c: Likewise.
	* libio/iofgets.c: Likewise.
	* libio/iofputs.c: Likewise.
	* libio/iofread.c: Likewise.
	* libio/iofsetpos.c: Likewise.
	* libio/ioftell.c: Likewise.
	* libio/iofwrite.c: Likewise.
	* libio/iogetdelim.c: Likewise.
	* libio/iogets.c: Likewise.
	* libio/ioputs.c: Likewise.
	* libio/iosetbuffer.c: Likewise.
	* libio/iosetvbuf.c: Likewise.
	* libio/ioungetc.c: Likewise.

	* libio/iovspintf.c: Use cleanup handler to make sure no dangling
	locks can stay over.
	* libio/iovsscanf.c: Likewise.

	* libio/genops.c: Use _IO_lock_init_recursive and _IO_lock_fini
	instead of __libc_lock_init_recursive and __libc_lock_fini.

	* libio/filedoalloc.c: Only use __isatty when compiling GNU libc.
	Otherwise use isatty.
	* libio/fileops.c: Likewise for __open and open.

	* login/utmp_file.c (getutent_r_file): Use fcntl instead of
	flock.

	* nis/ypclnt.h: Add more casts to prevent warnings.

	* nss/Makefile (services): Remove dns.
	(libnss_dns, libnss_dns-inhibit-o): Remove definition.
	($(objpfx)libnss_dns.so): Removed.
	* nss/nss_dns/dns-host.c, nss/nss_dns/dns-network.c: Moved to...
	* resolv/nss_dns: ...here.
	* resolv/Makefile (extra-libs): Add libnss_dns.
	(libnss_dns-routines, libnss_dns-inhibit-o): Define as in
	nss/Makefile.

	* nss/XXX-lookup.c: Call __nss_database_lookup with new argument
	specifying alternate name for entry in /etc/nsswitch.conf
	* nss/nsswitch.c: If no entry with primary name is found in
	/etc/nsswitch.conf try alternate name if given.
	* nss/nsswitch.h: Add new parameter in prototype for
	__nss_database_lookup.
	* nss/spwd-lookup.c: Provide alternative entry name to look for.
	This makes our NSS compatible with Solaris' nsswitch.conf files.

	* string/tst-strlen.c: Change all counting variables to type size_t
	to prevent warnings.

	* sysdeps/posix/fpathconf.c: Update copyright.
	* sysdeps/posix/pathconf.c: Don't call fpathconf to do the work.
	Opening the file at this path may fail if it is a FIFO or pipe.

	These changes make the time implementation POSIX.1 compliant.
	* time/localtime.c (__localtime_r): Always call __tzset not only
	if __tzset_run is zero.
	* time/strftime.c: Add definition of memset_space to help to
	reduce for systems which have memset.
	(strftime): Don't use tm_zone member of argument for zone name.
	Instead always use tzname[].
	Call tzset() as required by POSIX.1 before any action.
	* time/tzset.c (tzset): Set tzname[] as required by POSIX.1.
	Remove global variable __tzset_run.  __tzset is now called always
	when a dependent function is used.
	(__tzset): Caching happens based on the contents of the
	environment variable TZ.

Fri Dec 13 01:06:52 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/sysv/linux/paths.h: Add _PATH_KLOG.

Thu Dec 12 09:16:35 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* rellns-sh: Correctly handle a relative source file name.

Wed Dec 11 19:18:40 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* login/utmp_file.c (setutent_file): Seek back to beginning of the
	file if resetting.

Thu Dec 12 16:39:12 1996  Thomas Bushnell, n/BSG  <thomas@gnu.ai.mit.edu>

	* hurd/hurdinit.c (map0): Delete function.  Don't do this on
	_hurd_preinit_hook.
	* hurd/hurdstartup.c (_hurd_startup): Map page zero redzone here.

1 files changed, 33 insertions, 15 deletions

diff --git a/FAQ b/FAQ
index fbbae1044c..e5b18bfdfa 100644
--- a/FAQ
+++ b/FAQ
@@ -71,6 +71,9 @@ please let me know.
 
 [Q19]	``My XXX kernel emulates a floating-point coprocessor for me.
 	  Should I enable --with-fp?''
+
+[Q20]	``How can I compile gcc 2.7.2.1 from the gcc source code using
+	  glibc 2.x?
 
 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
 [Q1]	``What systems does the GNU C Library run on?''
@@ -422,7 +425,7 @@ the package and tell the configuration script about these additional
 subdirectories using the --enable-add-ons option.  When you add the
 crypt add-on you just have to use
 
-	configure --enable-add-ons=des-crypt,XXX ...
+	configure --enable-add-ons=crypt,XXX ...
 
 where XXX are possible other add-ons and ... means the rest of the
 normal option list.
@@ -473,7 +476,7 @@ use it instead of the old libc.  In this case the needed startup files
 and libraries are not found in the regular places.  So the specs file
 must tell the compiler and linker exactly what to use.  Here is for
 example the gcc-2.7.2 specs file when GNU libc is installed at
-/home/gnu:
+/usr:
 
 -----------------------------------------------------------------------
 *asm:
@@ -483,28 +486,28 @@ example the gcc-2.7.2 specs file when GNU libc is installed at
 %{pipe:-}
 
 *cpp:
-%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{!m386:-D__i486__} %{posix:-D_POSIX_SOURCE} -I/home/gnu/include
+%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{!m386:-D__i486__} %{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}
 
 *cc1:
-
+%{profile:-p}
 
 *cc1plus:
 
 
 *endfile:
-%{!shared:crtend.o%s} %{shared:crtendS.o%s} /home/gnu/lib/crtn.o%s
+%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s
 
 *link:
--m elf_i386 -rpath=/home/gnu/lib -L/home/gnu/lib %{shared:-shared}   %{!shared:     %{!ibcs:       %{!static: 	%{rdynamic:-export-dynamic} 	%{!dynamic-linker:-dynamic-linker=/home/gnu/lib/ld.so.1}} 	%{static:-static}}}
+-m elf_i386 %{shared:-shared}   %{!shared:     %{!ibcs:       %{!static: 	%{rdynamic:-export-dynamic} 	%{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2}} 	%{static:-static}}}
 
 *lib:
-%{!shared: %{mieee-fp:-lieee} %{p:-lc_p} %{!p:%{pg:-lc_p} %{!pg:-lc}}}
+%{!shared: %{pthread:-lpthread} 	%{profile:-lc_p} %{!profile: -lc}}
 
 *libgcc:
-%{!shared:-lgcc}
+-lgcc
 
 *startfile:
-%{!shared: %{pg:/home/gnu/lib/gcrt1.o%s} %{!pg:%{p:/home/gnu/lib/gcrt1.o} %{!p:/home/gnu/lib/crt1.o%s}}} /home/gnu/lib/crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}
+%{!shared:      %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} 		       %{!p:%{profile:gcrt1.o%s} 			 %{!profile:crt1.o%s}}}}    crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}
 
 *switches_need_spaces:
 
@@ -523,15 +526,15 @@ example the gcc-2.7.2 specs file when GNU libc is installed at
 
 -----------------------------------------------------------------------
 
-The above is currently correct for all systems but ix86/Linux.
-Because of compatibility issues on this platform the dynamic linker
-must have a different name: ld-linux.so.2.  So you have to replace
+The above is currently correct for ix86/Linux.  Because of
+compatibility issues on this platform the dynamic linker must have
+a different name: ld-linux.so.2.  So you have to replace
 
-	%{!dynamic-linker:-dynamic-linker=/home/gnu/lib/ld.so.1}
-by
 	%{!dynamic-linker:-dynamic-linker=/home/gnu/lib/ld-linux.so.2}
+by
+	%{!dynamic-linker:-dynamic-linker=/home/gnu/lib/ld.so.1}
 
-in the above example specs file.
+in the above example specs file ti make it work for other systems.
 
 Future versions of GCC will automatically provide the correct specs.
 
@@ -583,11 +586,26 @@ invalid.  I.e., an emulated FPU is for the libc as good as a real one.
 
 
 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
+[Q20]	``How can I compile gcc 2.7.2.1 from the gcc source code using
+	  glibc 2.x?
+
+[A20] {HJL} There is no support in gcc for glibc 2.0 before gcc 2.8. It
+is very tricky to compile gcc 2.7.2.1 using glibc 2.x. You have to
+build it manually or with one pass only. You also have to use the
+specs file in this FAQ while compiling gcc.
+
+A pre-compiled binary version of gcc 2.7.2.1 linked with glibc 2.x for
+Linux/x86 is available in the same directory at the glibc 2.x source
+code ftp sites.
+
+
+~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
 
 Answers were given by:
 {UD} Ulrich Drepper, <drepper@cygnus.com>
 {DMT} David Mosberger-Tang, <davidm@AZStarNet.com>
 {RM} Roland McGrath, <roland@gnu.ai.mit.edu>
+{HJL} H.J. Lu, <hjl@gnu.ai.mit.edu>
 
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