The top-level configure options --with-gmp-dir and --with-mpfr-dir
were obsoleted and marked as "REMOVED" back in 2006. I think that's
long enough ago for everyone to have updated their scripts, so this
patch removes them entirely. While doing this, I also found one other
leftover that wasn't removed by the earlier patch. This is also
removed here.
2022-03-28 Tom Tromey <tromey@adacore.com>
* configure.ac: Remove --with-mpfr-dir and --with-gmp-dir.
* configure: Rebuild.
The custom option for enabling/disabling libstdc++ is not spelled the
same as the directory name:
AC_ARG_ENABLE(libstdcxx,
AS_HELP_STRING([--disable-libstdcxx],
[do not build libstdc++-v3 directory])
The comment referring to it later use the wrong name.
ChangeLog:
* configure.ac: Fix incorrect option in comment.
* configure: Regenerate.
Sync with binutils for building binutils with LTO:
1dbde357be3 Add missing changes to Makefile.tpl
af019bfde9b Support the PGO build for binutils+gdb
Add the --enable-pgo-build[=lto] configure option. When binutils+gdb
is not built together with GCC, --enable-pgo-build enables the PGO build:
1. First build with -fprofile-generate.
2. Use "make maybe-check-*" to generate profiling data and pass -i to make
to ignore errors when generating profiling data.
3. Use "make clean" to remove the previous build.
4. Rebuild with -fprofile-use.
With --enable-pgo-build=lto, -flto=jobserver -ffat-lto-objects are used
together with -fprofile-generate and -fprofile-use. Add '+' to the command
line for recursive make to support -flto=jobserver -ffat-lto-objects.
NB: --enable-pgo-build=lto enables the PGO build with LTO while
--enable-lto enables LTO support in toolchain.
BZ binutils/26766
* Makefile.tpl (BUILD_CFLAGS): New.
(CFLAGS): Append $(BUILD_CFLAGS).
(CXXFLAGS): Likewise.
(PGO_BUILD_GEN_FLAGS_TO_PASS): New.
(PGO_BUILD_TRAINING_CFLAGS): Likewise.
(PGO_BUILD_TRAINING_CXXFLAGS): Likewise.
(PGO_BUILD_TRAINING_FLAGS_TO_PASS): Likewise.
(PGO_BUILD_TRAINING_MFLAGS): Likewise.
(PGO_BUILD_USE_FLAGS_TO_PASS): Likewise.
(PGO-TRAINING-TARGETS): Likewise.
(PGO_BUILD_TRAINING): Likewise.
(all): Add '+' to the command line for recursive make. Support
the PGO build.
* configure.ac: Add --enable-pgo-build[=lto].
AC_SUBST PGO_BUILD_GEN_CFLAGS, PGO_BUILD_USE_CFLAGS and
PGO_BUILD_LTO_CFLAGS. Enable the PGO build in Makefile.
* Makefile.in: Regenerated.
* configure: Likewise.
Sync with binutils for building binutils with LTO:
50ad1254d50 GCC: Pass --plugin to AR and RANLIB
Detect GCC LTO plugin. Pass --plugin to AR and RANLIB to support LTO
build.
ChangeLog:
* Makefile.tpl (AR): Add @AR_PLUGIN_OPTION@
(RANLIB): Add @RANLIB_PLUGIN_OPTION@.
* configure.ac: Include config/gcc-plugin.m4.
AC_SUBST AR_PLUGIN_OPTION and RANLIB_PLUGIN_OPTION.
* libtool.m4 (_LT_CMD_OLD_ARCHIVE): Pass --plugin to AR and
RANLIB if possible.
* Makefile.in: Regenerated.
* configure: Likewise.
config/
* gcc-plugin.m4 (GCC_PLUGIN_OPTION): New.
libiberty/
* Makefile.in (AR): Add @AR_PLUGIN_OPTION@
(RANLIB): Add @RANLIB_PLUGIN_OPTION@.
(configure_deps): Depend on ../config/gcc-plugin.m4.
* configure.ac: AC_SUBST AR_PLUGIN_OPTION and
RANLIB_PLUGIN_OPTION.
* aclocal.m4: Regenerated.
* configure: Likewise.
zlib/
* configure: Regenerated.
Hi.
CPP/CPPFLAGS were changed by commit 84401ce5fb. That commit uses CPP as a default for CPP_FOR_BUILD. Unless CPP is defined, GNU make defaults CPP as `$(CC) -E'. Given the context, this is now incorrect, since CC_FOR_BUILD should be used.
Fixes PR103011.
-- Pekka
gcc/Changelog:
* configure: Regenerate.
* configure.ac: For CPP_FOR_BUILD use $(CC_FOR_BUILD) -E instead of
$(CPP).
Darwin x86_64 and aarch64 platforms are PIC (shared) by default,
and user-space code must be built in this mode. The patch
ensures that this is set correctly and applies a default when
--enable-host-shared is not set.
Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>
ChangeLog:
* configure: Regenerate.
* configure.ac: Ensure that PIC (shared) defaults are set
correctly for Darwin.
During cross compiling, CPP is being set to the target compiler even for
build targets. As an example, when building a cross compiler targetting
mingw, the config.log for libiberty in
build.x86_64-pokysdk-mingw32.i586-poky-linux/build-x86_64-linux/libiberty/config.log
shows:
configure:3786: checking how to run the C preprocessor
configure:3856: result: x86_64-pokysdk-mingw32-gcc -E --sysroot=[sysroot]/x86_64-nativesdk-mingw32-pokysdk-mingw32
configure:3876: x86_64-pokysdk-mingw32-gcc -E --sysroot=[sysroot]/x86_64-nativesdk-mingw32-pokysdk-mingw32 conftest.c
configure:3876: $? = 0
This is libiberty being built for the build environment, not the target one
(i.e. in build-x86_64-linux). As such it should be using the build environment's
gcc and not the target one. In the mingw case the system headers are quite
different leading to build failures related to not being able to include a
process.h file for pem-unix.c.
Further analysis shows the same issue occuring for CPPFLAGS too.
Fix this by adding support for CPP_FOR_BUILD and CPPFLAGS_FOR_BUILD which
for example, avoids mixing the mingw headers for host binaries on linux
systems.
2021-10-27 Richard Purdie <richard.purdie@linuxfoundation.org>
ChangeLog:
* Makefile.tpl: Add CPP_FOR_BUILD and CPPFLAGS_FOR_BUILD support
* Makefile.in: Regenerate.
* configure: Regenerate.
* configure.ac: Add CPP_FOR_BUILD and CPPFLAGS_FOR_BUILD support
gcc/ChangeLog:
* configure: Regenerate.
* configure.ac: Use CPPFLAGS_FOR_BUILD for GMPINC
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
The top-level configure script is shared between the gcc repository
and the binutils-gdb repository.
The target_configdirs variable in the configure.ac script, defines
sub-directories that contain components that should be built for the
target using the target tools.
Some components, e.g. zlib, are built as both host and target
libraries.
This causes problems for binutils-gdb. If we run 'make all' in the
binutils-gdb repository we end up trying to build a target version of
the zlib library, which requires the target compiler be available.
Often the target compiler isn't immediately available, and so the
build fails.
The problem with zlib impacted a previous attempt to synchronise the
top-level configure scripts from gcc to binutils-gdb, see this thread:
https://sourceware.org/pipermail/binutils/2019-May/107094.html
And I'm in the process of importing libbacktrace in to binutils-gdb,
which is also a host and target library, and triggers the same issues.
I believe that for binutils-gdb, at least at the moment, there are no
target libraries that we need to build.
In the configure script we build three lists of things we want to
build, $configdirs, $build_configdirs, and $target_configdirs, we also
build two lists of things we don't want to build, $skipdirs and
$noconfigdirs. We then remove anything that is in the lists of things
not to build, from the list of things that should be built.
My proposal is to add everything in target_configdirs into skipdirs,
if the source tree doesn't contain a gcc/ sub-directory. The result
is that for binutils-gdb no target tools or libraries will be built,
while for the gcc repository, nothing should change.
If a user builds a unified source tree, then the target tools and
libraries should still be built as the gcc/ directory will be present.
I've tested a build of gcc on x86-64, and the same set of target
libraries still seem to get built. On binutils-gdb this change
resolves the issues with 'make all'.
ChangeLog:
* configure: Regenerate.
* configure.ac (skipdirs): Add the contents of target_configdirs if
we are not building gcc.
There were two uses for the Darwin host config fragment:
The first is to arrange for targets that support mdynamic-no-pic
to be built with that enabled (since it makes a significant
difference to the compiler performance). We can be more specific
in the application of this, since it only applies to 32b hosts
plus powerpc64-darwin9.
The second was to work around a tool bug where -fno-PIE was not
propagated to the link stage. This second use is redundant,
since the buggy toolchain cannot bootstrap current GCC sources
anyway.
This makes the host fragment more specific and reduces the number
of toolchains for which it is included which reduces clutter in
configure lines.
Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>
config/ChangeLog:
* mh-darwin: Make this specific to handling the
mdynamic-no-pic case.
ChangeLog:
* configure: Regenerate.
* configure.ac: Adjust cases for which it is necessary to
include the Darwin host config fragment.
In order to enable DWARF versions > 2 we need a sufficiently modern
version of dsymutil (in addition to the assembler / linker). This
allows the user to configure a different path from the installed one.
In addition, there are several sources of dsymutil so we differentiate
these in order to be get accurate version information.
Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>
gcc/ChangeLog:
* configure.ac: Handle --with-dsymutil in the same way as we
do for the assembler and linker. (DEFAULT_DSYMUTIL): New.
Extract the type and version for the dsymutil configured or
found by the default searches.
* config.in: Regenerated.
* configure: Regenerated.
* collect2.c (do_dsymutil): Handle locating dsymutil in the
same way as for the assembler and linker.
* config/darwin.h (DSYMUTIL): Delete.
* gcc.c: Report a configured dsymutil correctly.
* exec-tool.in: Allow for dsymutil.
ChangeLog:
* Makefile.def: Add dsymutil defs.
* Makefile.in: Regenerated.
* Makefile.tpl: Add dsymutil to flags.
* configure: Regenerated.
* configure.ac: Add dsymutil to target and build recipes.
We use getline, so leverage gnulib to provide fallback implementation.
ChangeLog:
* configure.ac: Add gnulib to configdirs for sim.
* configure: Regenerate.
If configured with --enable-offload-defaulted, configured but not installed
offload compilers and libgomp plugins are silently ignored. Useful for
distribution compilers where those are in separate optional packages.
2021-04-28 Jakub Jelinek <jakub@redhat.com>
Tobias Burnus <tobias@codesourcery.com>
ChangeLog:
* configure.ac (--enable-offload-defaulted): New.
* configure: Regenerate.
gcc/ChangeLog:
* configure.ac (OFFLOAD_DEFAULTED): AC_DEFINE if offload-defaulted.
* gcc.c (process_command): New variable.
(driver::maybe_putenv_OFFLOAD_TARGETS): If OFFLOAD_DEFAULTED,
set it if -foffload is defaulted.
* lto-wrapper.c (OFFLOAD_TARGET_DEFAULT_ENV): Define.
(compile_offload_image): If OFFLOAD_DEFAULTED and
OFFLOAD_TARGET_DEFAULT is in the environment, don't fail
if corresponding mkoffload can't be found.
(compile_images_for_offload_targets): Likewise. Free and clear
offload_names if no valid offload is found.
* config.in: Regenerate.
* configure: Regenerate.
libgomp/ChangeLog:
* configure.ac (OFFLOAD_DEFAULTED): AC_DEFINE if offload-defaulted.
* target.c (gomp_load_plugin_for_device): If set and if a plugin
can't be dlopened, silently assume it has no devices.
* Makefile.in: Regenerate.
* config.h.in: Regenerate.
* configure: Regenerate.
The bootstrap has been confirmed to be succeeding, there's no need to
set it as an unsupported language.
ChangeLog:
PR d/87788
* configure.ac: Don't disable D for *-*-darwin*.
* configure: Regenerate.
This is an analogous option to --bootstrap-asan to configure. It allows
bootstrapping GCC using HWASAN.
For the same reasons as for ASAN we have to avoid using the HWASAN
sanitizer when compiling libiberty and the lto-plugin.
Also add a function to query whether -fsanitize=hwaddress has been
passed.
ChangeLog:
* configure: Regenerate.
* configure.ac: Add --bootstrap-hwasan option.
config/ChangeLog:
* bootstrap-hwasan.mk: New file.
gcc/ChangeLog:
* doc/install.texi: Document new option.
libiberty/ChangeLog:
* configure: Regenerate.
* configure.ac: Avoid using sanitizer.
lto-plugin/ChangeLog:
* Makefile.am: Avoid using sanitizer.
* Makefile.in: Regenerate.
config/ChangeLog:
PR bootstrap/96612
* ax_cxx_compile_stdcxx.m4: Add fourth argument to check also
the CXX_FOR_BUILD compiler.
ChangeLog:
PR bootstrap/96612
* configure.ac: Run AX_CXX_COMPILE_STDCXX also for ${build} compiler,
if not the same as ${host}.
* configure: Regenerate.
Previously I had AX_CXX_COMPILE_STDCXX in the gcc directory configure, which
added -std=c++11 to CXX if needed, but then CXX is overridden from the
toplevel directory, so it didn't have the desired effect. Fixed by moving
the check to the toplevel. Currently it is only used when building GCC
without bootstrapping; other packages that share the toplevel directory
can adjust the condition if they also want to require C++11 support.
/ChangeLog:
* configure.ac: Check AX_CXX_COMPILE_STDCXX if not bootstrapping.
* configure: Regenerate.
gcc/ChangeLog:
* aclocal.m4: Remove ax_cxx_compile_stdcxx.m4.
* configure.ac: Remove AX_CXX_COMPILE_STDCXX.
* configure: Regenerate.
2020-05-28 Nicolas Bértolo <nicolasbertolo@gmail.com>
/ChangeLog:
* configure.ac: Don't require --enable-host-shared when building
for Mingw.
* configure: Regenerate.
2020-05-28 Nicolas Bértolo <nicolasbertolo@gmail.com>
gcc/ChangeLog:
* Makefile.in: don't look for libiberty in the "pic" subdirectory
when building for Mingw. Add dependency on xgcc with the proper
extension.
2020-05-28 Nicolas Bértolo <nicolasbertolo@gmail.com>
gcc/c/ChangeLog:
* Make-lang.in: Remove extra slash.
2020-05-28 Nicolas Bértolo <nicolasbertolo@gmail.com>
gcc/jit/ChangeLog:
* Make-lang.in: Remove extra slash. Build libgccjit.dll and its
import library in Windows.
* config-lang.in: Update comment about --enable-host-shared.
* jit-w32.h: New file.
* jit-w32.c: New file.
(print_last_error): New function that prints the error
string corresponding to GetLastError().
(get_TOKEN_USER_current_user): Helper function used for getting
the SID belonging to the current user.
(create_directory_for_current_user): Helper function to create
a directory with permissions such that only the current user can
access it.
(win_mkdtemp): Create a temporary directory using Windows APIs.
* jit-playback.c: Do not chmod files in Windows. Use LoadLibrary,
FreeLibrary and GetProcAddress instead of libdl.
* jit-result.h, jit-result.c: Introduce result::handle_t to
abstract over the types used for dynamic library handles.
* jit-tempdir.c: Do not use mkdtemp() in Windows, use
win_mkdtemp().
There was general agreement last November that we would move to allowing
C++11 features to be used in GCC 11; this patch implements that direction.
ChangeLog
2020-05-18 Jason Merrill <jason@redhat.com>
* configure.ac: Update bootstrap dialect to -std=c++11.
config/ChangeLog
2020-05-18 Jason Merrill <jason@redhat.com>
* ax_cxx_compile_stdcxx.m4: Import from autoconf archive with
an adjustment to try the default mode.
gcc/ChangeLog
2020-05-18 Jason Merrill <jason@redhat.com>
* aclocal.m4: Add ax_cxx_compile_stdcxx.m4.
* configure.ac: Use AX_CXX_COMPILE_STDCXX(11).
We recently rearranged the gdb source tree to move a common library
and gdbserver to the top-level. This made the build more uniform and
also a bit faster (due to sharing of built objects).
This patch re-syncs these changes the top-level configury back to gcc.
ChangeLog:
* configure: Rebuild.
* Makefile.in: Rebuild.
* Makefile.def (gdbsupport, gdbserver): New host modules.
(configure-gdb): Depend on all-gdbsupport.
(all-gdb): Depend on all-gdbsupport, all-libctf.
* configure.ac (host_tools): Add gdbserver.
Conditionally build gdbserver and gdbsupport.
The FTP protocol is getting long in the tooth, and we should emphasize
HTTPS where that is available. This patch changes various gcc.gnu.org
URL's to instead use HTTPS.
For instance, kernel.org shut down FTP access in 2017, with the
explanation:
- The protocol is inefficient and requires adding awkward kludges to
firewalls and load-balancing daemons
- FTP servers have no support for caching or accelerators, which has
significant performance impacts
- Most software implementations have stagnated and see infrequent
updates
ChangeLog:
2019-11-20 Janne Blomqvist <jb@gcc.gnu.org>
* configure.ac: Use https for gcc.gnu.org.
* configure: Regenerated.
gcc/ChangeLog:
2019-11-20 Janne Blomqvist <jb@gcc.gnu.org>
* configure.ac: Use https for gcc.gnu.org.
* configure: Regenerated.
* doc/install.texi: Use https for gcc.gnu.org.
* doc/sourcebuild.texi: Likewise.
gcc/testsuite/ChangeLog:
2019-11-20 Janne Blomqvist <jb@gcc.gnu.org>
* README: Use https for gcc.gnu.org.
libstdc++-v3/ChangeLog:
2019-11-20 Janne Blomqvist <jb@gcc.gnu.org>
* doc/html/api.html: Use https for gcc.gnu.org.
* doc/xml/api.xml: Likewise.
maintainer-scripts/ChangeLog:
2019-11-20 Janne Blomqvist <jb@gcc.gnu.org>
* gcc_release: Use https for gcc.gnu.org.
From-SVN: r278526
Bump the minimum MPFR version to 3.1.0, released 2011-10-03. With this
requirement one can still build GCC with the operating system provided
MPFR on old but still supported operating systems like SLES 12 (MPFR
3.1.2) or RHEL/CentOS 7.x (MPFR 3.1.1).
This allows removing some code in the Fortran frontend, as well as
fixing PR 91828.
ChangeLog:
2019-11-11 Janne Blomqvist <jb@gcc.gnu.org>
PR fortran/91828
* configure.ac: Bump minimum MPFR to 3.1.0, recommended to 3.1.6+.
* configure: Regenerated.
gcc/ChangeLog:
2019-11-11 Janne Blomqvist <jb@gcc.gnu.org>
PR fortran/91828
* doc/install.texi: Document that the minimum MPFR version is
3.1.0.
gcc/fortran/ChangeLog:
2019-11-11 Janne Blomqvist <jb@gcc.gnu.org>
PR fortran/91828
* simplify.c (gfc_simplify_fraction): Remove fallback path for
MPFR < 3.1.0.
From-SVN: r278058
gdb should normally not be linked with -static-libstdc++. Currently
this has not caused problems, but it's incompatible with catching an
exception thrown from a shared library -- and a subsequent patch
changes gdb to do just this.
This patch adds a new --with-static-standard-libraries flag to the
top-level configure. It defaults to "auto", which means enabled if
gcc is being built, and disabled otherwise.
ChangeLog
2019-08-19 Tom Tromey <tom@tromey.com>
* configure: Rebuild.
* configure.ac: Add --with-static-standard-libraries.
From-SVN: r274673
This patch syncs a change to the top-level configury from gdb. It
should not affect the gcc build at all. Tested by rebuilding.
ChangeLog
2019-06-15 Tom Tromey <tom@tromey.com>
* configure.ac (host_libs): Add gnulib.
* configure: Rebuild.
* Makefile.def (host_modules, dependencies): Add gnulib.
* Makefile.in: Rebuild.
From-SVN: r272332
PR d/87799
* d-system.h (_mkdir): Forward _mkdir on MinGW to mkdir in system.h.
* configure.ac: Remove d from unsupported languages on mingw and cygwin.
* configure: Regenerate.
From-SVN: r270349
toplevel:
* configure.ac (enable_libphobos): Check LIBPHOBOS_SUPPORTED.
* configure: Regenerate.
libphobos:
* configure.tgt (LIBPHOBOS_SUPPORTED): Default to no.
Set to yes explicitly.
* configure.ac: Handle --enable-libphobos.
(x86_64-*-solaris2.* | i?86-*-solaris2.*): Only mark supported
with gas.
(ENABLE_LIBPHOBOS): New conditional.
* configure: Regenerate.
* Makefile.am (SUBDIRS): Only set if ENABLE_LIBPHOBOS.
* Makefile.in: Regenerate.
From-SVN: r270348
This patch contains the configuration adjustments needed to enable the GCN
back-end.
The new configure check for dlopen is required to allow building the new
gcn-run tool. This tool uses libdl to load the HSA runtime libraries, which
are required to run programs on the GPU. The tool is disabled if libdl is not
available.
2019-01-17 Andrew Stubbs <ams@codesourcery.com>
Kwok Cheung Yeung <kcy@codesourcery.com>
Julian Brown <julian@codesourcery.com>
Tom de Vries <tom@codesourcery.com>
Jan Hubicka <hubicka@ucw.cz>
Martin Jambor <mjambor@suse.cz>
* configure.ac: Likewise.
* configure: Regenerate.
* contrib/config-list.mk: Add amdgcn-amdhsa.
gcc/
* config.gcc: Add amdgcn*-*-amdhsa configuration.
* configure.ac: Check for dlopen.
* configure: Regenerate.
Co-Authored-By: Jan Hubicka <hubicka@ucw.cz>
Co-Authored-By: Julian Brown <julian@codesourcery.com>
Co-Authored-By: Kwok Cheung Yeung <kcy@codesourcery.com>
Co-Authored-By: Martin Jambor <mjambor@suse.cz>
Co-Authored-By: Tom de Vries <tom@codesourcery.com>
From-SVN: r268024
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
ChangeLog:
2018-10-31 Iain Buclaw <ibuclaw@gdcproject.org>
PR bootstrap/87788
PR d/87799
* configure: Rebuild.
* configure.ac: Disable D on systems where it is known not to work.
libphobos/ChangeLog:
2018-10-31 Iain Buclaw <ibuclaw@gdcproject.org>
PR bootstrap/87789
PR d/87818
PR d/87819
* configure.tgt: New file.
From-SVN: r265658
ChangeLog:
* Makefile.def (target_modules): Add libphobos.
(flags_to_pass): Add GDC, GDCFLAGS, GDC_FOR_TARGET and
GDCFLAGS_FOR_TARGET.
(dependencies): Make libphobos depend on libatomic, libbacktrace
configure, and zlib configure.
(language): Add language d.
* Makefile.in: Rebuild.
* Makefile.tpl (BUILD_EXPORTS): Add GDC and GDCFLAGS.
(HOST_EXPORTS): Add GDC.
(POSTSTAGE1_HOST_EXPORTS): Add GDC and GDC_FOR_BUILD.
(BASE_TARGET_EXPORTS): Add GDC.
(GDC_FOR_BUILD, GDC, GDCFLAGS): New variables.
(GDC_FOR_TARGET, GDC_FLAGS_FOR_TARGET): New variables.
(EXTRA_HOST_FLAGS): Add GDC.
(STAGE1_FLAGS_TO_PASS): Add GDC.
(EXTRA_TARGET_FLAGS): Add GDC and GDCFLAGS.
* config-ml.in: Treat GDC and GDCFLAGS like other compiler/flag
environment variables.
* configure: Rebuild.
* configure.ac: Add target-libphobos to target_libraries. Set and
substitute GDC_FOR_BUILD and GDC_FOR_TARGET.
config/ChangeLog:
* multi.m4: Set GDC.
gcc/ChangeLog:
* Makefile.in (tm_d_file_list, tm_d_include_list): New variables.
(TM_D_H, D_TARGET_DEF, D_TARGET_H, D_TARGET_OBJS): New variables.
(tm_d.h, cs-tm_d.h, default-d.o): New rules.
(d/d-target-hooks-def.h, s-d-target-hooks-def-h): New rules.
(s-tm-texi): Also check timestamp on d-target.def.
(generated_files): Add TM_D_H and d-target-hooks-def.h.
(build/genhooks.o): Also depend on D_TARGET_DEF.
* config.gcc (tm_d_file, d_target_objs, target_has_targetdm): New
variables.
* config/aarch64/aarch64-d.c: New file.
* config/aarch64/aarch64-linux.h (GNU_USER_TARGET_D_CRITSEC_SIZE):
Define.
* config/aarch64/aarch64-protos.h (aarch64_d_target_versions): New
prototype.
* config/aarch64/aarch64.h (TARGET_D_CPU_VERSIONS): Define.
* config/aarch64/t-aarch64 (aarch64-d.o): New rule.
* config/arm/arm-d.c: New file.
* config/arm/arm-protos.h (arm_d_target_versions): New prototype.
* config/arm/arm.h (TARGET_D_CPU_VERSIONS): Define.
* config/arm/linux-eabi.h (EXTRA_TARGET_D_OS_VERSIONS): Define.
* config/arm/t-arm (arm-d.o): New rule.
* config/default-d.c: New file.
* config/glibc-d.c: New file.
* config/gnu.h (GNU_USER_TARGET_D_OS_VERSIONS): Define.
* config/i386/i386-d.c: New file.
* config/i386/i386-protos.h (ix86_d_target_versions): New prototype.
* config/i386/i386.h (TARGET_D_CPU_VERSIONS): Define.
* config/i386/linux-common.h (EXTRA_TARGET_D_OS_VERSIONS): Define.
(GNU_USER_TARGET_D_CRITSEC_SIZE): Define.
* config/i386/t-i386 (i386-d.o): New rule.
* config/kfreebsd-gnu.h (GNU_USER_TARGET_D_OS_VERSIONS): Define.
* config/kopensolaris-gnu.h (GNU_USER_TARGET_D_OS_VERSIONS): Define.
* config/linux-android.h (ANDROID_TARGET_D_OS_VERSIONS): Define.
* config/linux.h (GNU_USER_TARGET_D_OS_VERSIONS): Define.
* config/mips/linux-common.h (EXTRA_TARGET_D_OS_VERSIONS): Define.
* config/mips/mips-d.c: New file.
* config/mips/mips-protos.h (mips_d_target_versions): New prototype.
* config/mips/mips.h (TARGET_D_CPU_VERSIONS): Define.
* config/mips/t-mips (mips-d.o): New rule.
* config/powerpcspe/linux.h (GNU_USER_TARGET_D_OS_VERSIONS): Define.
* config/powerpcspe/linux64.h (GNU_USER_TARGET_D_OS_VERSIONS): Define.
* config/powerpcspe/powerpcspe-d.c: New file.
* config/powerpcspe/powerpcspe-protos.h (rs6000_d_target_versions):
New prototype.
* config/powerpcspe/powerpcspe.c (rs6000_output_function_epilogue):
Support GNU D by using 0 as the language type.
* config/powerpcspe/powerpcspe.h (TARGET_D_CPU_VERSIONS): Define.
* config/powerpcspe/t-powerpcspe (powerpcspe-d.o): New rule.
* config/riscv/riscv-d.c: New file.
* config/riscv/riscv-protos.h (riscv_d_target_versions): New
prototype.
* config/riscv/riscv.h (TARGET_D_CPU_VERSIONS): Define.
* config/riscv/t-riscv (riscv-d.o): New rule.
* config/rs6000/linux.h (GNU_USER_TARGET_D_OS_VERSIONS): Define.
* config/rs6000/linux64.h (GNU_USER_TARGET_D_OS_VERSIONS): Define.
* config/rs6000/rs6000-d.c: New file.
* config/rs6000/rs6000-protos.h (rs6000_d_target_versions): New
prototype.
* config/rs6000/rs6000.c (rs6000_output_function_epilogue):
Support GNU D by using 0 as the language type.
* config/rs6000/rs6000.h (TARGET_D_CPU_VERSIONS): Define.
* config/rs6000/t-rs6000 (rs6000-d.o): New rule.
* config/s390/s390-d.c: New file.
* config/s390/s390-protos.h (s390_d_target_versions): New prototype.
* config/s390/s390.h (TARGET_D_CPU_VERSIONS): Define.
* config/s390/t-s390 (s390-d.o): New rule.
* config/sparc/sparc-d.c: New file.
* config/sparc/sparc-protos.h (sparc_d_target_versions): New
prototype.
* config/sparc/sparc.h (TARGET_D_CPU_VERSIONS): Define.
* config/sparc/t-sparc (sparc-d.o): New rule.
* config/t-glibc (glibc-d.o): New rule.
* configure: Regenerated.
* configure.ac (tm_d_file): New variable.
(tm_d_file_list, tm_d_include_list, d_target_objs): Add substitutes.
* doc/contrib.texi (Contributors): Add self for the D frontend.
* doc/frontends.texi (G++ and GCC): Mention D as a supported language.
* doc/install.texi (Configuration): Mention libphobos as an option for
--enable-shared. Mention d as an option for --enable-languages.
(Testing): Mention check-d as a target.
* doc/invoke.texi (Overall Options): Mention .d, .dd, and .di as file
name suffixes. Mention d as a -x option.
* doc/sourcebuild.texi (Top Level): Mention libphobos.
* doc/standards.texi (Standards): Add section on D language.
* doc/tm.texi: Regenerated.
* doc/tm.texi.in: Add @node for D language and ABI, and @hook for
TARGET_CPU_VERSIONS, TARGET_D_OS_VERSIONS, and TARGET_D_CRITSEC_SIZE.
* dwarf2out.c (is_dlang): New function.
(gen_compile_unit_die): Use DW_LANG_D for D.
(declare_in_namespace): Return module die for D, instead of adding
extra declarations into the namespace.
(gen_namespace_die): Generate DW_TAG_module for D.
(gen_decl_die): Handle CONST_DECLSs for D.
(dwarf2out_decl): Likewise.
(prune_unused_types_walk_local_classes): Handle DW_tag_interface_type.
(prune_unused_types_walk): Handle DW_tag_interface_type same as other
kinds of aggregates.
* gcc.c (default_compilers): Add entries for .d, .dd and .di.
* genhooks.c: Include d/d-target.def.
gcc/po/ChangeLog:
* EXCLUDES: Add sources from d/dmd.
gcc/testsuite/ChangeLog:
* gcc.misc-tests/help.exp: Add D to option descriptions check.
* gdc.dg/asan/asan.exp: New file.
* gdc.dg/asan/gdc272.d: New test.
* gdc.dg/compilable.d: New test.
* gdc.dg/dg.exp: New file.
* gdc.dg/gdc254.d: New test.
* gdc.dg/gdc260.d: New test.
* gdc.dg/gdc270a.d: New test.
* gdc.dg/gdc270b.d: New test.
* gdc.dg/gdc282.d: New test.
* gdc.dg/gdc283.d: New test.
* gdc.dg/imports/gdc170.d: New test.
* gdc.dg/imports/gdc231.d: New test.
* gdc.dg/imports/gdc239.d: New test.
* gdc.dg/imports/gdc241a.d: New test.
* gdc.dg/imports/gdc241b.d: New test.
* gdc.dg/imports/gdc251a.d: New test.
* gdc.dg/imports/gdc251b.d: New test.
* gdc.dg/imports/gdc253.d: New test.
* gdc.dg/imports/gdc254a.d: New test.
* gdc.dg/imports/gdc256.d: New test.
* gdc.dg/imports/gdc27.d: New test.
* gdc.dg/imports/gdcpkg256/package.d: New test.
* gdc.dg/imports/runnable.d: New test.
* gdc.dg/link.d: New test.
* gdc.dg/lto/lto.exp: New file.
* gdc.dg/lto/ltotests_0.d: New test.
* gdc.dg/lto/ltotests_1.d: New test.
* gdc.dg/runnable.d: New test.
* gdc.dg/simd.d: New test.
* gdc.test/gdc-test.exp: New file.
* lib/gdc-dg.exp: New file.
* lib/gdc.exp: New file.
libphobos/ChangeLog:
* Makefile.am: New file.
* Makefile.in: New file.
* acinclude.m4: New file.
* aclocal.m4: New file.
* config.h.in: New file.
* configure: New file.
* configure.ac: New file.
* d_rules.am: New file.
* libdruntime/Makefile.am: New file.
* libdruntime/Makefile.in: New file.
* libdruntime/__entrypoint.di: New file.
* libdruntime/__main.di: New file.
* libdruntime/gcc/attribute.d: New file.
* libdruntime/gcc/backtrace.d: New file.
* libdruntime/gcc/builtins.d: New file.
* libdruntime/gcc/config.d.in: New file.
* libdruntime/gcc/deh.d: New file.
* libdruntime/gcc/libbacktrace.d.in: New file.
* libdruntime/gcc/unwind/arm.d: New file.
* libdruntime/gcc/unwind/arm_common.d: New file.
* libdruntime/gcc/unwind/c6x.d: New file.
* libdruntime/gcc/unwind/generic.d: New file.
* libdruntime/gcc/unwind/package.d: New file.
* libdruntime/gcc/unwind/pe.d: New file.
* m4/autoconf.m4: New file.
* m4/druntime.m4: New file.
* m4/druntime/cpu.m4: New file.
* m4/druntime/libraries.m4: New file.
* m4/druntime/os.m4: New file.
* m4/gcc_support.m4: New file.
* m4/gdc.m4: New file.
* m4/libtool.m4: New file.
* src/Makefile.am: New file.
* src/Makefile.in: New file.
* src/libgphobos.spec.in: New file.
* testsuite/Makefile.am: New file.
* testsuite/Makefile.in: New file.
* testsuite/config/default.exp: New file.
* testsuite/lib/libphobos-dg.exp: New file.
* testsuite/lib/libphobos.exp: New file.
* testsuite/testsuite_flags.in: New file.
From-SVN: r265573
This patch turns dependencies of non-bootstrap targets on bootstrap
targets for bootstrap builds into dependencies on stage_last. This
arrangement gets stage1-bubble to run from stage_last if we haven't
started a bootstrap yet, and to use the current stage otherwise. This
was already the case of target libs, just not of non-bootstrapped host
modules.
In order to retain preexisting dependencies in non-bootstrap builds,
or in gcc-less builds, this introduces support for @unless/@endunless
pairs in Makefile.in.
There is a remaining possibility of problem if activating, in a tree
configured for bootstrap, a parallel build of two or more modules, at
least one bootstrapped and one not. In this case, make might decide
to build stage_current and stage_last in parallel, the latter will
start a submake to build stage1 while the initial make, having
satisfied stage_current, proceeds to build the bootstrapped module in
non-bootstrapped configurations. The two builds will overlap and will
likely conflict. This situation does NOT arise in normal settings,
however: a post-bootstrap build of all-host all-target will indeed
activate such targets concurrently, but only after building all
bootstrapped modules successfully, and it will have both stage_last
and stage_current targets already satisfied, so the potential race
between builds will not arise.
Another remaining problem, that is slightly expanded with this patch,
is that of an interrupted build in a tree configured for bootstrap,
continued with a non-bootstrapped target. Target modules that were
not bootstrapped would already fail to complete the current stage when
activated explicitly in the command line for a retry; host modules,
however, would attempt to build their bootstrapped dependencies, which
is what led to the problem of concurrent builds addressed with this
patch. An interrupted or failed build might still recover correctly,
if the non-bootstrapped target is activated in both builds, because
then make will remove stage_last when its build command is
interrupted, so that it will attempt to recreate it with stage1-bubble
in the second try. A bootstrap build, however, will not be attempting
to build stage_last, so the file will remain and the retry won't go
through stage1-bubble. We have lived with that for target modules, so
we can probably live with that for host modules too.
Another undesirable consequence of this change is that non-boostrapped
host modules, in a tree configured for bootstrap, when activated as
make all-<module>, will build all of stage1 instead of only the
module's usual dependencies. This is intentional and necessary to fix
the parallel-build problem. If it's not desirable, disabling the
unnecessary bootstrap configuration will suffice to restore the
original set of dependencies.
for ChangeLog
* configure.ac: Introduce support for @unless/@endunless.
* Makefile.tpl (dep-kind): Rewrite with cond; return
postbootstrap in some cases.
(make-postboot-dep, postboot-targets): New.
(dependencies): Do not output postbootstrap dependencies at
first. Output non-target ones changed for configure to depend
on stage_last @if gcc-bootstrap, and the original deps @unless
gcc-bootstrap.
* configure.in, Makefile.in: Rebuilt.
From-SVN: r262267
chenglulu
Tom Tromey
Jonathan Wakely
H.J. Lu
Pekka Seppänen
Iain Buclaw
Iain Sandoe
Richard Purdie
Andrew Burgess
Mike Frysinger
Martin Liska
Nick Clifton
Tobias Burnus
Nathan Sidwell
Matthew Malcomson
Jason Merrill
Nicolás Bértolo
Thomas Schwinge
Stephen Casner
Tom Tromey
Matthias Klose
Tobias Burnus
Janne Blomqvist
Jose E. Marchesi
Dimitar Dimitrov
Johannes Pfau
Rainer Orth
Andrew Stubbs
Joseph Myers
Iain Buclaw
Alexandre Oliva
Francois H. Theron