9f1528a1bd
GCC's config/ChangeLog since the last time this merge was done (in the binutils-gdb commit0b4d000cc4) is included at the end of this commit message. It is worth noting that the binutils-gdb commit301a9420d9added the file config/debuginfod.m4 which is not present in GCC's config/ directory. This file is preserved, unmodified, after this commit. In order to regenerate all of the configure files, I configured with --enable-maintainer-mode, and built the 'all' target. I then did the same thing on a source tree without this patch, and only committed those files that changed when this patch was added. GCC's config/ChangeLog entries: 2020-02-12 Sandra Loosemore <sandra@codesourcery.com> PR libstdc++/79193 PR libstdc++/88999 * no-executables.m4: Use a non-empty program to test for linker support. 2020-02-01 Andrew Burgess <andrew.burgess@embecosm.com> * lib-link.m4 (AC_LIB_LINKFLAGS_BODY): Update shell syntax. 2020-01-27 Andrew Burgess <andrew.burgess@embecosm.com> * lib-link.m4 (AC_LIB_LINKFLAGS_BODY): Add new --with-libXXX-type=... option. Use this to guide the selection of either a shared library or a static library. 2020-01-24 Maciej W. Rozycki <macro@wdc.com> * toolexeclibdir.m4: New file. 2019-09-10 Christophe Lyon <christophe.lyon@st.com> * futex.m4: Handle *-uclinux*. * tls.m4 (GCC_CHECK_TLS): Likewise. 2019-09-06 Florian Weimer <fweimer@redhat.com> * futex.m4 (GCC_LINUX_FUTEX): Include <unistd.h> for the syscall function. 2019-07-08 Richard Sandiford <richard.sandiford@arm.com> * bootstrap-Og.mk: New file. 2019-06-25 Kwok Cheung Yeung <kcy@codesourcery.com> Andrew Stubbs <ams@codesourcery.com> * gthr.m4 (GCC_AC_THREAD_HEADER): Add case for gcn. 2019-05-30 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> * ax_count_cpus.m4: New file. 2019-05-02 Richard Biener <rguenther@suse.de> PR bootstrap/85574 * bootstrap-lto.mk (extra-compare): Set to gcc/lto1$(exeext). 2019-04-16 Martin Liska <mliska@suse.cz> * bootstrap-lto-lean.mk: Filter out -flto in STAGEtrain_CFLAGS. 2019-04-09 Martin Liska <mliska@suse.cz> * bootstrap-lto-lean.mk: New file. 2019-03-02 Johannes Pfau <johannespfau@gmail.com> * mh-mingw: Also set __USE_MINGW_ACCESS flag for C++ code. 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. config/ChangeLog: * ax_count_cpus.m4: New file, backported from GCC. * bootstrap-Og.mk: New file, backported from GCC. * bootstrap-lto-lean.mk: New file, backported from GCC. * bootstrap-lto.mk: Changes backported from GCC. * futex.m4: Changes backported from GCC. * gthr.m4: Changes backported from GCC. * lib-link.m4: Changes backported from GCC. * mh-mingw: Changes backported from GCC. * no-executables.m4: Changes backported from GCC. * tls.m4: Changes backported from GCC. * toolexeclibdir.m4: New file, backported from GCC. binutils/ChangeLog: * configure: Regenerate. gdb/ChangeLog: * configure: Regenerate. gdbserver/ChangeLog: * configure: Regenerate. gdbsupport/ChangeLog: * configure: Regenerate. intl/ChangeLog: * configure: Regenerate. libiberty/ChangeLog: * configure: Regenerate. zlib/ChangeLog.bin-gdb: * configure: Regenerate.
72 lines
2.3 KiB
Plaintext
72 lines
2.3 KiB
Plaintext
# GCC_NO_EXECUTABLES
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# -----------------
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# FIXME: The GCC team has specific needs which the current Autoconf
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# framework cannot solve elegantly. This macro implements a dirty
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# hack until Autoconf is able to provide the services its users
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# need.
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#
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# Several of the support libraries that are often built with GCC can't
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# assume the tool-chain is already capable of linking a program: the
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# compiler often expects to be able to link with some of such
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# libraries.
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#
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# In several of these libraries, workarounds have been introduced to
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# avoid the AC_PROG_CC_WORKS test, that would just abort their
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# configuration. The introduction of AC_EXEEXT, enabled either by
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# libtool or by CVS autoconf, have just made matters worse.
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#
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# Unlike the previous AC_NO_EXECUTABLES, this test does not
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# disable link tests at autoconf time, but at configure time.
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# This allows AC_NO_EXECUTABLES to be invoked conditionally.
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AC_DEFUN_ONCE([GCC_NO_EXECUTABLES],
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[m4_divert_push([KILL])
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AC_BEFORE([$0], [_AC_COMPILER_EXEEXT])
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AC_BEFORE([$0], [AC_LINK_IFELSE])
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m4_define([_AC_COMPILER_EXEEXT],
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[AC_LANG_CONFTEST([AC_LANG_PROGRAM(
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[#include <stdio.h>],
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[printf ("hello world\n");])])
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# FIXME: Cleanup?
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AS_IF([AC_TRY_EVAL(ac_link)], [gcc_no_link=no], [gcc_no_link=yes])
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if test x$gcc_no_link = xyes; then
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# Setting cross_compile will disable run tests; it will
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# also disable AC_CHECK_FILE but that's generally
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# correct if we can't link.
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cross_compiling=yes
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EXEEXT=
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else
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]m4_defn([_AC_COMPILER_EXEEXT])dnl
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fi
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)
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m4_define([AC_LINK_IFELSE],
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if test x$gcc_no_link = xyes; then
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AC_MSG_ERROR([Link tests are not allowed after [[$0]].])
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fi
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m4_defn([AC_LINK_IFELSE]))
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dnl This is a shame. We have to provide a default for some link tests,
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dnl similar to the default for run tests.
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m4_define([AC_FUNC_MMAP],
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if test x$gcc_no_link = xyes; then
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if test "x${ac_cv_func_mmap_fixed_mapped+set}" != xset; then
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ac_cv_func_mmap_fixed_mapped=no
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fi
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fi
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if test "x${ac_cv_func_mmap_fixed_mapped}" != xno; then
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m4_defn([AC_FUNC_MMAP])
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fi)
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m4_divert_pop()dnl
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])# GCC_NO_EXECUTABLES
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# Use the strongest available test out of AC_TRY_COMPILE and AC_TRY_LINK.
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AC_DEFUN([GCC_TRY_COMPILE_OR_LINK],
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[if test x$gcc_no_link = xyes; then
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AC_TRY_COMPILE([$1], [$2], [$3], [$4])
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else
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AC_TRY_LINK([$1], [$2], [$3], [$4])
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fi])
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