The recent warning patches broke the libssp build on Solaris:
/vol/gcc/src/hg/master/local/libssp/gets-chk.c: In function '__gets_chk':
/vol/gcc/src/hg/master/local/libssp/gets-chk.c:67:12: error: implicit
declaration of function 'gets'; did you mean 'getw'?
[-Wimplicit-function-declaration]
67 | return gets (s);
| ^~~~
| getw
/vol/gcc/src/hg/master/local/libssp/gets-chk.c:67:12: error: returning
'int' from a function with return type 'char *' makes pointer from integer
without a cast [-Wint-conversion]
67 | return gets (s);
| ^~~~~~~~
/vol/gcc/src/hg/master/local/libssp/gets-chk.c:74:12: error: returning
'int' from a function with return type 'char *' makes pointer from integer
without a cast [-Wint-conversion]
74 | return gets (s);
| ^~~~~~~~
The guard around the gets declaration in gets-chk.c is
|| (defined __cplusplus && __cplusplus <= 201103L))
extern char *gets (char *);
where __USE_ISOC11 is glibc-only, while Solaris <iso/stdio_iso.h> declares
gets like
extern char *gets(char *) __ATTR_DEPRECATED;
Instead of using a target-specific macro, this patch just uses the
canonical autoconf test.
Tested on i386-pc-solaris2.11, sparc-sun-solaris2.11,
x86_64-pc-linux-gnu, x86_64-apple-darwin23.3.0, and amd64-freebsd14.0.
2023-12-07 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
libssp:
* configure.ac (AC_CHECK_DECLS): Check for gets.
* configure, config.h.in: Regenerate.
* gets-chk.c (gets): Guard declaration with !HAVE_DECL_GETS.
While investigating possible race conditions in the GCC testsuites
caused by bufferization issues, I wanted to investigate workarounds
similar to GDB's READ1 [1], and I noticed it was not always possible
to override EXPECT when running 'make check'.
This patch adds the missing support in various Makefiles.
I was not able to test the patch for all the libraries updated here,
but I confirmed it works as intended/needed for libstdc++.
libatomic, libitm, libgomp already work as intended because their
Makefiles do not have:
MAKEOVERRIDES=
Tested on (native) aarch64-linux-gnu, confirmed the patch introduces
the behaviour I want in gcc, g++, gfortran and libstdc++.
I updated (but could not test) libgm2, libphobos, libquadmath and
libssp for consistency since their Makefiles have MAKEOVERRIDES=
libffi, libgo, libsanitizer seem to need a similar update, but they
are imported from their respective upstream repo, so should not be
patched here.
[1] https://github.com/bminor/binutils-gdb/blob/master/gdb/testsuite/README#L269
2023-12-21 Christophe Lyon <christophe.lyon@linaro.org>
gcc/
* Makefile.in: Allow overriding EXEPCT.
libgm2/
* Makefile.am: Allow overriding EXEPCT.
* Makefile.in: Regenerate.
libphobos/
* Makefile.am: Allow overriding EXEPCT.
* Makefile.in: Regenerate.
libquadmath/
* Makefile.am: Allow overriding EXEPCT.
* Makefile.in: Regenerate.
libssp/
* Makefile.am: Allow overriding EXEPCT.
* Makefile.in: Regenerate.
libstdc++-v3/
* Makefile.am: Allow overriding EXEPCT.
* Makefile.in: Regenerate.
Recent Darwin versions place contraints on the use of run paths
specified in environment variables. This breaks some assumptions
in the GCC build.
This change allows the user to configure a Darwin build to use
'@rpath/libraryname.dylib' in library names and then to add an
embedded runpath to executables (and libraries with dependents).
The embedded runpath is added by default unless the user adds
'-nodefaultrpaths' to the link line.
For an installed compiler, it means that any executable built with
that compiler will reference the runtimes installed with the
compiler (equivalent to hard-coding the library path into the name
of the library).
During build-time configurations any "-B" entries will be added to
the runpath thus the newly-built libraries will be found by exes.
Since the install name is set in libtool, that decision needs to be
available here (but might also cause dependent ones in Makefiles,
so we need to export a conditional).
This facility is not available for Darwin 8 or earlier, however the
existing environment variable runpath does work there.
We default this on for systems where the external DYLD_LIBRARY_PATH
does not work and off for Darwin 8 or earlier. For systems that can
use either method, if the value is unset, we use the default (which
is currently DYLD_LIBRARY_PATH).
ChangeLog:
* configure: Regenerate.
* configure.ac: Do not add default runpaths to GCC exes
when we are building -static-libstdc++/-static-libgcc (the
default).
* libtool.m4: Add 'enable-darwin-at-runpath'. Act on the
enable flag to alter Darwin libraries to use @rpath names.
gcc/ChangeLog:
* aclocal.m4: Regenerate.
* configure: Regenerate.
* configure.ac: Handle Darwin rpaths.
* config/darwin.h: Handle Darwin rpaths.
* config/darwin.opt: Handle Darwin rpaths.
* Makefile.in: Handle Darwin rpaths.
gcc/ada/ChangeLog:
* gcc-interface/Makefile.in: Handle Darwin rpaths.
gcc/jit/ChangeLog:
* Make-lang.in: Handle Darwin rpaths.
libatomic/ChangeLog:
* Makefile.am: Handle Darwin rpaths.
* Makefile.in: Regenerate.
* configure: Regenerate.
* configure.ac: Handle Darwin rpaths.
libbacktrace/ChangeLog:
* configure: Regenerate.
* configure.ac: Handle Darwin rpaths.
libcc1/ChangeLog:
* configure: Regenerate.
libffi/ChangeLog:
* Makefile.am: Handle Darwin rpaths.
* Makefile.in: Regenerate.
* configure: Regenerate.
libgcc/ChangeLog:
* config/t-slibgcc-darwin: Generate libgcc_s
with an @rpath name.
* config.host: Handle Darwin rpaths.
libgfortran/ChangeLog:
* Makefile.am: Handle Darwin rpaths.
* Makefile.in: Regenerate.
* configure: Regenerate.
* configure.ac: Handle Darwin rpaths
libgm2/ChangeLog:
* Makefile.am: Handle Darwin rpaths.
* Makefile.in: Regenerate.
* aclocal.m4: Regenerate.
* configure: Regenerate.
* configure.ac: Handle Darwin rpaths.
* libm2cor/Makefile.am: Handle Darwin rpaths.
* libm2cor/Makefile.in: Regenerate.
* libm2iso/Makefile.am: Handle Darwin rpaths.
* libm2iso/Makefile.in: Regenerate.
* libm2log/Makefile.am: Handle Darwin rpaths.
* libm2log/Makefile.in: Regenerate.
* libm2min/Makefile.am: Handle Darwin rpaths.
* libm2min/Makefile.in: Regenerate.
* libm2pim/Makefile.am: Handle Darwin rpaths.
* libm2pim/Makefile.in: Regenerate.
libgomp/ChangeLog:
* Makefile.am: Handle Darwin rpaths.
* Makefile.in: Regenerate.
* configure: Regenerate.
* configure.ac: Handle Darwin rpaths
libitm/ChangeLog:
* Makefile.am: Handle Darwin rpaths.
* Makefile.in: Regenerate.
* configure: Regenerate.
* configure.ac: Handle Darwin rpaths.
libobjc/ChangeLog:
* configure: Regenerate.
* configure.ac: Handle Darwin rpaths.
libphobos/ChangeLog:
* configure: Regenerate.
* configure.ac: Handle Darwin rpaths.
* libdruntime/Makefile.am: Handle Darwin rpaths.
* libdruntime/Makefile.in: Regenerate.
* src/Makefile.am: Handle Darwin rpaths.
* src/Makefile.in: Regenerate.
libquadmath/ChangeLog:
* Makefile.am: Handle Darwin rpaths.
* Makefile.in: Regenerate.
* configure: Regenerate.
* configure.ac: Handle Darwin rpaths.
libsanitizer/ChangeLog:
* asan/Makefile.am: Handle Darwin rpaths.
* asan/Makefile.in: Regenerate.
* configure: Regenerate.
* hwasan/Makefile.am: Handle Darwin rpaths.
* hwasan/Makefile.in: Regenerate.
* lsan/Makefile.am: Handle Darwin rpaths.
* lsan/Makefile.in: Regenerate.
* tsan/Makefile.am: Handle Darwin rpaths.
* tsan/Makefile.in: Regenerate.
* ubsan/Makefile.am: Handle Darwin rpaths.
* ubsan/Makefile.in: Regenerate.
libssp/ChangeLog:
* Makefile.am: Handle Darwin rpaths.
* Makefile.in: Regenerate.
* configure: Regenerate.
* configure.ac: Handle Darwin rpaths.
libstdc++-v3/ChangeLog:
* configure: Regenerate.
* configure.ac: Handle Darwin rpaths.
* src/Makefile.am: Handle Darwin rpaths.
* src/Makefile.in: Regenerate.
libvtv/ChangeLog:
* configure: Regenerate.
* configure.ac: Handle Darwin rpaths.
lto-plugin/ChangeLog:
* configure: Regenerate.
* configure.ac: Handle Darwin rpaths.
zlib/ChangeLog:
* configure: Regenerate.
* configure.ac: Handle Darwin rpaths.
These are the os support patches we have been grooming and maintaining
for quite a few years over on git.haiku-os.org. All of these
architectures are working and most have been stable for quite some time.
ChangeLog:
* configure: Regenerate.
* configure.ac: Add Haiku to list of ELF OSes
* libtool.m4: Update sys_lib_dlsearch_path_spec on Haiku.
gcc/ChangeLog:
* configure: Regenerate.
libatomic/ChangeLog:
* configure: Regenerate.
libbacktrace/ChangeLog:
* configure: Regenerate.
libcc1/ChangeLog:
* configure: Regenerate.
libffi/ChangeLog:
* configure: Regenerate.
libgfortran/ChangeLog:
* configure: Regenerate.
libgm2/ChangeLog:
* configure: Regenerate.
libgomp/ChangeLog:
* configure: Regenerate.
libitm/ChangeLog:
* configure: Regenerate.
libobjc/ChangeLog:
* configure: Regenerate.
libphobos/ChangeLog:
* configure: Regenerate.
libquadmath/ChangeLog:
* configure: Regenerate.
libsanitizer/ChangeLog:
* configure: Regenerate.
libssp/ChangeLog:
* configure: Regenerate.
libstdc++-v3/ChangeLog:
* configure: Regenerate.
libvtv/ChangeLog:
* configure: Regenerate.
lto-plugin/ChangeLog:
* configure: Regenerate.
zlib/ChangeLog:
* configure: Regenerate.
My previous nm patch handled all cases but one -- if the user set NM in
the environment to a path which contained an option, libtool's nm
detection tries to run nm against a copy of nm with the options in it:
e.g. if NM was set to "nm --blargle", and nm was found in /usr/bin, the
test would try to run "/usr/bin/nm --blargle /usr/bin/nm --blargle".
This is unlikely to be desirable: in this case we should run
"/usr/bin/nm --blargle /usr/bin/nm".
Furthermore, as part of this nm has to detect when the passed-in $NM
contains a path, and in that case avoid doing a path search itself.
This too was thrown off if an option contained something that looked
like a path, e.g. NM="nm -B../prev-gcc"; libtool then tries to run
"nm -B../prev-gcc nm" which rarely works well (and indeed it looks
to see whether that nm exists, finds it doesn't, and wrongly concludes
that nm -p or whatever does not work).
Fix all of these by clipping all options (defined as everything
including and after the first " -") before deciding whether nm
contains a path (but not using the clipped value for anything else),
and then removing all options from the path-modified nm before
looking to see whether that nm existed.
NM=my-nm now does a path search and runs e.g.
/usr/bin/my-nm -B /usr/bin/my-nm
NM=/usr/bin/my-nm now avoids a path search and runs e.g.
/usr/bin/my-nm -B /usr/bin/my-nm
NM="my-nm -p../wombat" now does a path search and runs e.g.
/usr/bin/my-nm -p../wombat -B /usr/bin/my-nm
NM="../prev-binutils/new-nm -B../prev-gcc" now avoids a path search:
../prev-binutils/my-nm -B../prev-gcc -B ../prev-binutils/my-nm
This seems to be all combinations, including those used by GCC bootstrap
(which, before this commit, fails to bootstrap when configured
--with-build-config=bootstrap-lto, because the lto plugin is now using
--export-symbols-regex, which requires libtool to find a working nm,
while also using -B../prev-gcc to point at the lto plugin associated
with the GCC just built.)
Regenerate all affected configure scripts.
ChangeLog:
* libtool.m4 (LT_PATH_NM): Handle user-specified NM with
options, including options containing paths.
gcc/ChangeLog:
* configure: Regenerate.
libatomic/ChangeLog:
* configure: Regenerate.
libbacktrace/ChangeLog:
* configure: Regenerate.
libcc1/ChangeLog:
* configure: Regenerate.
libffi/ChangeLog:
* configure: Regenerate.
libgfortran/ChangeLog:
* configure: Regenerate.
libgm2/ChangeLog:
* configure: Regenerate.
libgomp/ChangeLog:
* configure: Regenerate.
libitm/ChangeLog:
* configure: Regenerate.
libobjc/ChangeLog:
* configure: Regenerate.
libphobos/ChangeLog:
* configure: Regenerate.
libquadmath/ChangeLog:
* configure: Regenerate.
libsanitizer/ChangeLog:
* configure: Regenerate.
libssp/ChangeLog:
* configure: Regenerate.
libstdc++-v3/ChangeLog:
* configure: Regenerate.
libvtv/ChangeLog:
* configure: Regenerate.
lto-plugin/ChangeLog:
* configure: Regenerate.
zlib/ChangeLog:
* configure: Regenerate.
Libtool needs to get BSD-format (or MS-format) output out of the system
nm, so that it can scan generated object files for symbol names for
-export-symbols-regex support. Some nms need specific flags to turn on
BSD-formatted output, so libtool checks for this in its AC_PATH_NM.
Unfortunately the code to do this has a pair of interlocking flaws:
- it runs the test by doing an nm of /dev/null. Some platforms
reasonably refuse to do an nm on a device file, but before now this
has only been worked around by assuming that the error message has a
specific textual form emitted by Tru64 nm, and that getting this
error means this is Tru64 nm and that nm -B would work to produce
BSD-format output, even though the test never actually got anything
but an error message out of nm -B. This is fixable by nm'ing *nm
itself* (since we necessarily have a path to it).
- the test is entirely skipped if NM is set in the environment, on the
grounds that the user has overridden the test: but the user cannot
reasonably be expected to know that libtool wants not only nm but
also flags forcing BSD-format output. Worse yet, one such "user" is
the top-level Cygnus configure script, which neither tests for
nor specifies any BSD-format flags. So platforms needing BSD-format
flags always fail to set them when run in a Cygnus tree, breaking
-export-symbols-regex on such platforms. Libtool also needs to
augment $LD on some platforms, but this is done unconditionally,
augmenting whatever the user specified: the nm check should do the
same.
One wrinkle: if the user has overridden $NM, a path might have been
provided: so we use the user-specified path if there was one, and
otherwise do the path search as usual. (If the nm specified doesn't
work, this might lead to a few extra pointless path searches -- but
the test is going to fail anyway, so that's not a problem.)
(Tested with NM unset, and set to nm, /usr/bin/nm, my-nm where my-nm is a
symlink to /usr/bin/nm on the PATH, and /not-on-the-path/my-nm where
*that* is a symlink to /usr/bin/nm.)
ChangeLog:
* libtool.m4 (LT_PATH_NM): Try BSDization flags with a user-provided
NM, if there is one. Run nm on itself, not on /dev/null, to avoid
errors from nms that refuse to work on non-regular files. Remove
other workarounds for this problem. Strip out blank lines from the
nm output.
fixincludes/ChangeLog:
* configure: Regenerate.
gcc/ChangeLog:
* configure: Regenerate.
libatomic/ChangeLog:
* configure: Regenerate.
libbacktrace/ChangeLog:
* configure: Regenerate.
libcc1/ChangeLog:
* configure: Regenerate.
libffi/ChangeLog:
* configure: Regenerate.
libgfortran/ChangeLog:
* configure: Regenerate.
libgm2/ChangeLog:
* configure: Regenerate.
libgomp/ChangeLog:
* configure: Regenerate.
libitm/ChangeLog:
* configure: Regenerate.
libobjc/ChangeLog:
* configure: Regenerate.
libphobos/ChangeLog:
* configure: Regenerate.
libquadmath/ChangeLog:
* configure: Regenerate.
libsanitizer/ChangeLog:
* configure: Regenerate.
libssp/ChangeLog:
* configure: Regenerate.
libstdc++-v3/ChangeLog:
* configure: Regenerate.
libvtv/ChangeLog:
* configure: Regenerate.
lto-plugin/ChangeLog:
* configure: Regenerate.
zlib/ChangeLog:
* configure: Regenerate.
AR from older binutils doesn't work with --plugin and rc:
[hjl@gnu-cfl-2 bin]$ touch foo.c
[hjl@gnu-cfl-2 bin]$ ar --plugin /usr/libexec/gcc/x86_64-redhat-linux/10/liblto_plugin.so rc libfoo.a foo.c
[hjl@gnu-cfl-2 bin]$ ./ar --plugin /usr/libexec/gcc/x86_64-redhat-linux/10/liblto_plugin.so rc libfoo.a foo.c
./ar: no operation specified
[hjl@gnu-cfl-2 bin]$ ./ar --version
GNU ar (Linux/GNU Binutils) 2.29.51.0.1.20180112
Copyright (C) 2018 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) any later version.
This program has absolutely no warranty.
[hjl@gnu-cfl-2 bin]$
Check if AR works with --plugin and rc before passing --plugin to AR and
RANLIB.
ChangeLog:
* configure: Regenerated.
* libtool.m4 (_LT_CMD_OLD_ARCHIVE): Check if AR works with
--plugin and rc before enabling --plugin.
config/ChangeLog:
* gcc-plugin.m4 (GCC_PLUGIN_OPTION): Check if AR works with
--plugin and rc before enabling --plugin.
gcc/ChangeLog:
* configure: Regenerate.
libatomic/ChangeLog:
* configure: Regenerate.
libbacktrace/ChangeLog:
* configure: Regenerate.
libcc1/ChangeLog:
* configure: Regenerate.
libffi/ChangeLog:
* configure: Regenerate.
libgfortran/ChangeLog:
* configure: Regenerate.
libgm2/ChangeLog:
* configure: Regenerate.
libgomp/ChangeLog:
* configure: Regenerate.
libiberty/ChangeLog:
* configure: Regenerate.
libitm/ChangeLog:
* configure: Regenerate.
libobjc/ChangeLog:
* configure: Regenerate.
libphobos/ChangeLog:
* configure: Regenerate.
libquadmath/ChangeLog:
* configure: Regenerate.
libsanitizer/ChangeLog:
* configure: Regenerate.
libssp/ChangeLog:
* configure: Regenerate.
libstdc++-v3/ChangeLog:
* configure: Regenerate.
libvtv/ChangeLog:
* configure: Regenerate.
lto-plugin/ChangeLog:
* configure: Regenerate.
zlib/ChangeLog:
* configure: Regenerate.
This change adds the configury bits to activate the build of
shared libs on VxWorks ports configured with --enable-shared,
for libraries variants where this is generally supported (rtp,
code model !large - currently not compatible with -fPIC).
Set lt_cv_deplibs_check_method in libtool.m4, so the build of
libraries know how to establish dependencies. This is useful in
configurations such as aarch64 where proper support of LSE relies
on accurate dependency information between libstdc++ and libgcc_s
to begin with.
Regenerate configure scripts to reflect libtool.m4 change.
2022-10-09 Olivier Hainque <hainque@adacore.com>
* libtool.m4 (*vxworks*): When enable_shared, set dynamic_linker
and friends for rtp !large. Assume the linker has the required
abilities and set lt_cv_deplibs_check_method.
gcc/
* config.gcc (*vxworks*): Add t-slibgcc fragment
if enable_shared.
libgcc/
* config.host (*vxworks*): When enable_shared, add
libgcc and crtstuff "shared" fragments for rtp except
large code model.
(aarch64*-wrs-vxworks7*): Remove t-slibgcc-libgcc from
the list of fragments.
2022-10-09 Olivier Hainque <hainque@adacore.com>
gcc/
* configure: Regenerate.
libatomic/
* configure: Regenerate.
libbacktrace/
* configure: Regenerate.
libcc1/
* configure: Regenerate.
libffi/
* configure: Regenerate.
libgfortran/
* configure: Regenerate.
libgomp/
* configure: Regenerate.
libitm/
* configure: Regenerate.
libobjc/
* configure: Regenerate.
liboffloadmic/
* configure: Regenerate.
liboffloadmic/
* plugin/configure: Regenerate.
libphobos/
* configure: Regenerate.
libquadmath/
* configure: Regenerate.
libsanitizer/
* configure: Regenerate.
libssp/
* configure: Regenerate.
libstdc++-v3/
* configure: Regenerate.
libvtv/
* configure: Regenerate.
lto-plugin/
* configure: Regenerate.
zlib/
* configure: Regenerate.
The change in major version (and the increment from Darwin19 to 20)
caused libtool tests to fail which resulted in incorrect build settings
for shared libraries.
We take this opportunity to sort out the shared undefined symbols state
rather than propagating the current unsound behaviour into a new rev.
This change means that we default to the case that missing symbols are
considered an error, and if one wants to allow this intentionally, the
confiuration for that case should be set appropriately.
Three existing cases need undefined dynamic lookup:
libitm, where there is already a configuration mechanism to add the
flags.
libcc1, where we add simple configuration to add the flags for Darwin.
libsanitizer, where we can add to the existing extra flags.
libcc1/ChangeLog:
PR target/97865
* Makefile.am: Add dynamic_lookup to LD flags for Darwin.
* configure.ac: Test for Darwin host and set a flag.
* Makefile.in: Regenerate.
* configure: Regenerate.
libitm/ChangeLog:
PR target/97865
* configure.tgt: Add dynamic_lookup to XLDFLAGS for Darwin.
* configure: Regenerate.
libsanitizer/ChangeLog:
PR target/97865
* configure.tgt: Add dynamic_lookup to EXTRA_CXXFLAGS for
Darwin.
* configure: Regenerate.
ChangeLog:
PR target/97865
* libtool.m4: Update handling of Darwin platform link flags
for Darwin20.
gcc/ChangeLog:
PR target/97865
* configure: Regenerate.
libatomic/ChangeLog:
PR target/97865
* configure: Regenerate.
libbacktrace/ChangeLog:
PR target/97865
* configure: Regenerate.
libffi/ChangeLog:
PR target/97865
* configure: Regenerate.
libgfortran/ChangeLog:
PR target/97865
* configure: Regenerate.
libgomp/ChangeLog:
PR target/97865
* configure: Regenerate.
libhsail-rt/ChangeLog:
PR target/97865
* configure: Regenerate.
libobjc/ChangeLog:
PR target/97865
* configure: Regenerate.
libphobos/ChangeLog:
PR target/97865
* configure: Regenerate.
libquadmath/ChangeLog:
PR target/97865
* configure: Regenerate.
libssp/ChangeLog:
PR target/97865
* configure: Regenerate.
libstdc++-v3/ChangeLog:
PR target/97865
* configure: Regenerate.
libvtv/ChangeLog:
PR target/97865
* configure: Regenerate.
zlib/ChangeLog:
PR target/97865
* configure: Regenerate.
On bare-metal targets, I/O support is typically provided by a BSP and
requires a linker script and/or hosting library to be specified on the
linker command line. Linking an empty program with the default linker
script may succeed, however, which confuses libstdc++ configuration
when programs that probe for the presence of various I/O features fail
with link errors.
2020-02-12 Sandra Loosemore <sandra@codesourcery.com>
PR libstdc++/79193
PR libstdc++/88999
config/
* no-executables.m4: Use a non-empty program to test for linker
support.
libgcc/
* configure: Regenerated.
libgfortran/
* configure: Regenerated.
libiberty/
* configure: Regenerated.
libitm/
* configure: Regenerated.
libobjc/
* configure: Regenerated.
libquadmath/
* configure: Regenerated.
libssp/
* configure: Regenerated.
libstdc++v-3/
* configure: Regenerated.
This patch updates GCC to use autoconf 2.69 and automake 1.15.1.
(That's not the latest automake version, but it's the one used by
binutils-gdb, with which consistency is desirable, and in any case
seems a useful incremental update that should make a future update to
1.16.1 easier.)
The changes are generally similar to the binutils-gdb ones, and are
copied from there where shared files and directories are involved
(there are some further changes to such shared directories, however,
which I'd expect to apply to binutils-gdb once this patch is in GCC).
Largely, obsolete AC_PREREQ calls are removed, while many
AC_LANG_SOURCE calls are added to avoid warnings from aclocal and
autoconf. Multilib support is no longer included in core automake,
meaning that multilib.am needs copying from automake's contrib
directory into the GCC source tree. Autoconf 2.69 has Go support, so
local copies of that support are removed. I hope the D support will
soon be submitted to upstream autoconf so the local copy of that can
be removed in a future update. Changes to how automake generates
runtest calls mean quotes are removed from RUNTEST definitions in five
lib*/testsuite/Makefile.am files (libatomic, libgomp, libitm,
libphobos, libvtv; some others have RUNTEST definitions without
quotes, which are still OK); libgo and libphobos also get
-Wno-override added to AM_INIT_AUTOMAKE so those overrides of RUNTEST
do not generate automake warnings.
Note that the regeneration did not include regeneration of
fixincludes/config.h.in (attempting such regeneration resulted in all
the USED_FOR_TARGET conditionals disappearing; and I don't see
anything in the fixincludes/ directory that would result in such
conditionals being generated, unlike in the gcc/ directory). Also
note that libvtv/testsuite/other-tests/Makefile.in was not
regenerated; that directory is not listed as a subdirectory for which
Makefile.in gets regenerated by calling "automake" in libvtv/, so I'm
not sure how it's meant to be regenerated.
While I mostly fixed warnings should running aclocal / automake /
autoconf, there were various such warnings from automake in the
libgfortran, libgo, libgomp, liboffloadmic, libsanitizer, libphobos
directories that I did not fix, preferring to leave those to the
relevant subsystem maintainers. Specifically, most of those warnings
were of the following form (example from libgfortran):
Makefile.am:48: warning: source file 'caf/single.c' is in a subdirectory,
Makefile.am:48: but option 'subdir-objects' is disabled
automake: warning: possible forward-incompatibility.
automake: At least a source file is in a subdirectory, but the 'subdir-objects'
automake: automake option hasn't been enabled. For now, the corresponding output
automake: object file(s) will be placed in the top-level directory. However,
automake: this behaviour will change in future Automake versions: they
will
automake: unconditionally cause object files to be placed in the same subdirectory
automake: of the corresponding sources.
automake: You are advised to start using 'subdir-objects' option throughout your
automake: project, to avoid future incompatibilities.
I think it's best for the relevant maintainers to add subdir-objects
and do any other associated Makefile.am changes needed. In some cases
the paths in the warnings involved ../; I don't know if that adds any
extra complications to the use of subdir-objects.
I've tested this with native, cross and Canadian cross builds. The
risk of any OS-specific issues should I hope be rather lower than if a
libtool upgrade were included (we *should* do such an upgrade at some
point, but it's more complicated - it involves identifying all our
local libtool changes to see if any aren't included in the upstream
version we update to, and reverting an upstream libtool patch that's
inappropriate for use in GCC); I think it would be better to get this
update into GCC so that people can test in different configurations
and we can fix any issues found, rather than to try to get more and
more testing done before it goes in.
top level:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* multilib.am: New file. From automake.
Merge from binutils-gdb:
2018-06-19 Simon Marchi <simon.marchi@ericsson.com>
* libtool.m4: Use AC_LANG_SOURCE.
* configure.ac: Remove AC_PREREQ, use AC_LANG_SOURCE.
* ar-lib: New file.
* test-driver: New file.
* configure: Re-generate.
config:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* math.m4, tls.m4: Use AC_LANG_SOURCE.
Merge from binutils-gdb:
2018-06-19 Simon Marchi <simon.marchi@ericsson.com>
* override.m4 (_GCC_AUTOCONF_VERSION): Bump from 2.64 to 2.69.
fixincludes:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* configure.ac: Remove AC_PREREQ.
* aclocal.m4, configure: Regenerate.
gcc:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* configure.ac: Remove AC_PREREQ. Use AC_LANG_SOURCE. Use single
line for second argument of AC_DEFINE_UNQUOTED.
* doc/install.texi (Tools/packages necessary for modifying GCC):
Update to autoconf 2.69 and automake 1.15.1.
* aclocal.m4, config.in, configure: Regenerate.
gnattools:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* configure.ac: Remove AC_PREREQ.
* configure: Regenerate.
gotools:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* config/go.m4: Remove file.
* Makefile.am (ACLOCAL_AMFLAGS): Do not use -I ./config.
* configure.ac: Remove AC_PREREQ. Do not include config/go.m4.
* Makefile.in, aclocal.m4, configure: Regenerate.
intl:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
Merge from binutils-gdb:
2018-06-19 Simon Marchi <simon.marchi@ericsson.com>
* configure.ac: Add AC_USE_SYSTEM_EXTENSIONS, remove AC_PREREQ.
* configure: Re-generate.
* config.h.in: Re-generate.
* aclocal.m4: Re-generate.
libada:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* configure.ac: Remove AC_PREREQ.
* configure: Regenerate.
libatomic:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
* acinclude.m4: Use AC_LANG_SOURCE.
* configure.ac: Remove AC_PREREQ.
* testsuite/Makefile.am (RUNTEST): Remove quotes.
* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
Regenerate.
libbacktrace:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
* configure.ac: Remove AC_PREREQ. Use AC_LANG_SOURCE.
* Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.
libcc1:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* configure.ac: Remove AC_PREREQ.
* Makefile.in, aclocal.m4, configure: Regenerate.
libcpp:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* configure.ac: Remove AC_PREREQ. Use AC_LANG_SOURCE.
* aclocal.m4, config.in, configure: Regenerate.
libdecnumber:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
Merge from binutils-gdb:
2018-06-19 Simon Marchi <simon.marchi@ericsson.com>
* configure.ac: Remove AC_PREREQ.
* configure: Re-generate.
* aclocal.m4.
libffi:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
(AUTOMAKE_OPTIONS): Add info-in-builddir.
(CLEANFILES): Remove doc/libffi.info.
* configure.ac: Remove AC_PREREQ.
* Makefile.in, aclocal.m4, configure, fficonfig.h.in,
include/Makefile.in, man/Makefile.in, testsuite/Makefile.in:
Regenerate.
libgcc:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* configure.ac: Remove AC_PREREQ. Use AC_LANG_SOURCE.
* configure: Regenerate.
libgfortran:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
* configure.ac: Remove AC_PREREQ.
* Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.
libgo [logically part of this change but omitted from the commit]:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
* config/go.m4: Remove file.
* config/libtool.m4: Use AC_LANG_SOURCE.
* configure.ac: Remove AC_PREREQ. Use AC_LANG_SOURCE. Use
-Wno-override in AM_INIT_AUTOMAKE call.
* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
Regenerate.
libgomp:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am
(AUTOMAKE_OPTIONS): Add info-in-builddir.
(CLEANFILES): Remove libgomp.info.
* configure.ac: Remove AC_PREREQ.
* testsuite/Makefile.am (RUNTEST): Remove quotes.
* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
Regenerate.
libhsail-rt:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* configure.ac: Remove AC_PREREQ.
* Makefile.in, aclocal.m4, configure: Regenerate.
libiberty:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
Merge from binutils-gdb:
2018-06-19 Simon Marchi <simon.marchi@ericsson.com>
* configure.ac: Remove AC_PREREQ.
* configure: Re-generate.
* config.in: Re-generate.
libitm:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
(AUTOMAKE_OPTIONS): Add info-in-builddir.
(CLEANFILES): Remove libitm.info.
* configure.ac: Remove AC_PREREQ.
* testsuite/Makefile.am (RUNTEST): Remove quotes.
* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
Regenerate.
libobjc:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* configure.ac: Remove AC_PREREQ.
* aclocal.m4, config.h.in, configure: Regenerate.
liboffloadmic:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
* configure.ac: Remove AC_PREREQ.
* plugin/Makefile.am: Include multilib.am.
* plugin/configure.ac: Remove AC_PREREQ.
* Makefile.in, aclocal.m4, configure, plugin/Makefile.in,
plugin/aclocal.m4, plugin/configure: Regenerate.
libphobos:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
* configure.ac: Remove AC_PREREQ. Use -Wno-override in
AM_INIT_AUTOMAKE call.
* m4/autoconf.m4: Add extra argument to AC_LANG_DEFINE call.
* m4/druntime/os.m4: Use AC_LANG_SOURCE.
* testsuite/Makefile.am (RUNTEST): Remove quotes.
* Makefile.in, aclocal.m4, configure, libdruntime/Makefile.in,
src/Makefile.in, testsuite/Makefile.in: Regenerate.
libquadmath:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
(AUTOMAKE_OPTIONS): Remove 1.8. Add info-in-builddir.
(all-local): Define outside conditional code.
(CLEANFILES): Remove libquadmath.info.
* configure.ac: Remove AC_PREREQ.
* Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.
libsanitizer:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
* configure.ac: Remove AC_PREREQ. Use AC_LANG_SOURCE.
* Makefile.in, aclocal.m4, asan/Makefile.in, configure,
interception/Makefile.in, libbacktrace/Makefile.in,
lsan/Makefile.in, sanitizer_common/Makefile.in, tsan/Makefile.in,
ubsan/Makefile.in: Regenerate.
libssp:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
(AUTOMAKE_OPTIONS): Remove 1.9.5.
* configure.ac: Remove AC_PREREQ. Quote argument to
AC_RUN_IFELSE.
* Makefile.in, aclocal.m4, configure: Regenerate.
libstdc++-v3:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
* configure.ac: Remove AC_PREREQ.
* Makefile.in, aclocal.m4, configure, doc/Makefile.in,
include/Makefile.in, libsupc++/Makefile.in, po/Makefile.in,
python/Makefile.in, src/Makefile.in, src/c++11/Makefile.in,
src/c++17/Makefile.in, src/c++98/Makefile.in,
src/filesystem/Makefile.in, testsuite/Makefile.in: Regenerate.
libvtv:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
* configure.ac: Remove AC_PREREQ.
* testsuite/Makefile.am (RUNTEST): Remove quotes.
* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
Regenerate.
lto-plugin:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* configure.ac: Remove AC_PREREQ. Use AC_LANG_SOURCE.
* Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.
zlib:
2018-10-31 Joseph Myers <joseph@codesourcery.com>
PR bootstrap/82856
* Makefile.am: Include multilib.am.
Merge from binutils-gdb:
2018-06-19 Simon Marchi <simon.marchi@ericsson.com>
* configure.ac: Modernize AC_INIT call, remove AC_PREREQ.
* Makefile.am (AUTOMAKE_OPTIONS): Remove 1.8, cygnus, add foreign.
* Makefile.in: Re-generate.
* aclocal.m4: Re-generate.
* configure: Re-generate.
From-SVN: r265695
* config/cet.m4 (GCC_CET_FLAGS): Default to --disable-cet, replace
--enable-cet=default with --enable-cet=auto.
* doc/install.texi: Document --disable-cet being the default and
--enable-cet=auto.
* configure: Regenerated.
From-SVN: r259487
PR jit/85384
* acx.m4 (GCC_BASE_VER): Remove \$\$ from sed expression.
* configure.ac (gcc-driver-name.h): Honor --with-gcc-major-version
by using gcc_base_ver to generate a gcc_driver_version, and use
it when generating GCC_DRIVER_NAME.
* configure: Regenerate.
* configure: Regenerate.
From-SVN: r259462
ENDBR32 and RDSSPD are multi-byte NOPs on x86-64 processors and
newer x86 processors, starting Pentium Pro. They are UD on older
32-bit processors. Detect this at configure time and adjust the
default value for enable_cet. GCC will enable CET in 32-bit run-time
libraries in any case if --enable-cet is used to configure GCC.
PR target/84148
* config/cet.m4: Check if target support multi-byte NOPS (SSE).
* libatomic/configure: Regenerate.
* libbacktrace/configure: Likewise.
* libgcc/configure: Likewise.
* libgfortran/configure: Likewise.
* libgomp/configure: Likewise.
* libitm/configure: Likewise.
* libmpx/configure: Likewise.
* libobjc/configure: Likewise.
* libquadmath/configure: Likewise.
* libsanitizer/configure: Likewise.
* libssp/configure: Likewise.
* libstdc++-v3/configure: Likewise.
* libvtv/configure: Likewise.
From-SVN: r257809
