Automake and GNU Make both use the endif keyword, which conflicts and
elicits an error for matching if/ifdef and endif.

This patch changes the conditional include to use "-include" to prevent
a warning about a possible empty tmake_file.

libgomp/ChangeLog

2020-06-22  David Edelsohn  <dje.gcc@gmail.com>

	* Makefile.am: Use -include.
	* Makefile.in: Regenerate.

libatomic/ChangeLog

2020-06-22  David Edelsohn  <dje.gcc@gmail.com>

	* Makefile.am: Use -include.
	* Makefile.in: Regenerate.

libstdc++-v3/ChangeLog

2020-06-22  David Edelsohn  <dje.gcc@gmail.com>

	* Makefile.am: Use -include.
	* Makefile.in: Regenerate.

libgfortran/ChangeLog

2020-06-22  David Edelsohn  <dje.gcc@gmail.com>

	* Makefile.am: Use -include.
	* Makefile.in: Regenerate.

This patch adds the ability to configure GCC on AIX to build as a
64 bit application and to build target libraries "FAT" libraries in both
32 bit and 64 bit mode.

The patch adds makefile fragment hooks to target libraries that allows
them to include target-specific rules.  The target specific rules for
AIX place both 32 bit and 64 bit objects and shared objects
in archives at the top-level, not multilib subdirectories.  The
multilibs are built in subdirectories, but must be combined during the
last parts of the target library build process.  Because of the way
that GCC bootstrap works, the libraries must be combined during the
multiple stages of GCC bootstrap, not solely when installed in the
final destination, so the libraries are correct at the end of
each target library build stage, not solely an install recipe.

gcc/ChangeLog

2020-06-21  David Edelsohn  <dje.gcc@gmail.com>

	* config.gcc: Use t-aix64, biarch64 and default64 for cpu_is_64bit.
	* config/rs6000/aix72.h (ASM_SPEC): Remove aix64 option.
	(ASM_SPEC32): New.
	(ASM_SPEC64): New.
	(ASM_CPU_SPEC): Remove vsx and altivec options.
	(CPP_SPEC_COMMON): Rename from CPP_SPEC.
	(CPP_SPEC32): New.
	(CPP_SPEC64): New.
	(CPLUSPLUS_CPP_SPEC): Rename to CPLUSPLUS_CPP_SPEC_COMMON..
	(TARGET_DEFAULT): Only define if not BIARCH.
	(LIB_SPEC_COMMON): Rename from LIB_SPEC.
	(LIB_SPEC32): New.
	(LIB_SPEC64): New.
	(LINK_SPEC_COMMON): Rename from LINK_SPEC.
	(LINK_SPEC32): New.
	(LINK_SPEC64): New.
	(STARTFILE_SPEC): Add 64 bit version of crtcxa and crtdbase.
	(ASM_SPEC): Define 32 and 64 bit alternatives using DEFAULT_ARCH64_P.
	(CPP_SPEC): Same.
	(CPLUSPLUS_CPP_SPEC): Same.
	(LIB_SPEC): Same.
	(LINK_SPEC): Same.
	(SUBTARGET_EXTRA_SPECS): Add new 32/64 specs.
	* config/rs6000/defaultaix64.h: New file.
	* config/rs6000/t-aix64: New file.

libgcc/ChangeLog

2020-06-21  David Edelsohn  <dje.gcc@gmail.com>

	* config.host (extra_parts): Add crtcxa_64 and crtdbase_64.
	* config/rs6000/t-aix-cxa: Explicitly compile 32 bit with -maix32
	and 64 bit with -maix64.
	* config/rs6000/t-slibgcc-aix: Remove extra @multilib_dir@ level.
	Build and install AIX-style FAT libraries.

libgomp/ChangeLog

2020-06-21  David Edelsohn  <dje.gcc@gmail.com>

	* Makefile.am (tmake_file): Build and install AIX-style FAT libraries.
	* Makefile.in: Regenerate
	* configure.ac (tmake_file): Substitute.
	* configure: Regenerate.
	* configure.tgt (powerpc-ibm-aix*): Define tmake_file.
	* config/t-aix: New file.

libstdc++-v3/ChangeLog

2020-06-21  David Edelsohn  <dje.gcc@gmail.com>

	* Makefile.am (tmake_file): Build and install AIX-style FAT libraries.
	* Makefile.in: Regenerate.
	* configure.ac (tmake_file): Substitute.
	* configure: Regenerate.
	* configure.host (aix*): Define tmake_file.
	* config/os/aix/t-aix: New file.

libatomic/ChangeLog

2020-06-21  David Edelsohn  <dje.gcc@gmail.com>

	* Makefile.am (tmake_file): Build and install AIX-style FAT libraries.
	* Makefile.in: Regenerate.
	* configure.ac (tmake_file): Substitute.
	* configure: Regenerate.
	* configure.tgt (powerpc-ibm-aix*): Define tmake_file.
	* config/t-aix: New file.

libgfortran/ChangeLog

2020-06-21  David Edelsohn  <dje.gcc@gmail.com>

	* Makefile.am (tmake_file): Build and install AIX-style FAT libraries.
	* Makefile.in: Regenerate.
	* configure.ac (tmake_file): Substitute.
	* configure: Regenerate.
	* configure.host: Add system configury stanza. Define tmake_file.
	* config/t-aix: New file.

Windows ABI (MinGW) is different than Linux ABI when bitfileds are involved.
The following patch adds __attribute__ ((gcc_struct)) to struct fenv in order
to match the layout of x87 state image in memory.

2020-06-01  Uroš Bizjak  <ubizjak@gmail.com>

libatomic/ChangeLog:
	* config/x86/fenv.c (struct fenv): Add __attribute__ ((gcc_struct)).

libgcc/ChangeLog:
	* config/i386/sfp-exceptions.c (struct fenv):
	Add __attribute__ ((gcc_struct)).

libgfortran/ChangeLog:
	PR libfortran/95418
	* config/fpu-387.h (struct fenv): Add __attribute__ ((gcc_struct)).

Avoid nested save_CFLAGS and save_LDFLAGS by replacing save_CFLAGS and
save_LDFLAGS with cet_save_CFLAGS and cet_save_LDFLAGS in cet.m4.

config/

	PR bootstrap/95413
	* cet.m4: Replace save_CFLAGS and save_LDFLAGS with
	cet_save_CFLAGS and cet_save_LDFLAGS.

gcc/

	PR bootstrap/95413
	* configure: Regenerated.

libatomic/

	PR bootstrap/95413
	* configure: Regenerated.

libbacktrace/

	PR bootstrap/95413
	* configure: Regenerated.

libcc1/

	PR bootstrap/95413
	* configure: Regenerated.

libcpp/

	PR bootstrap/95413
	* configure: Regenerated.

libdecnumber/

	PR bootstrap/95413
	* configure: Regenerated.

libgcc/

	PR bootstrap/95413
	* configure: Regenerated.

libgfortran/

	PR bootstrap/95413
	* configure: Regenerated.

libgomp/

	PR bootstrap/95413
	* configure: Regenerated.

libiberty/

	PR bootstrap/95413
	* configure: Regenerated.

libitm/

	PR bootstrap/95413
	* configure: Regenerated.

libobjc/

	PR bootstrap/95413
	* configure: Regenerated.

libphobos/

	PR bootstrap/95413
	* configure: Regenerated.

libquadmath/

	PR bootstrap/95413
	* configure: Regenerated.

libsanitizer/

	PR bootstrap/95413
	* configure: Regenerated.

libssp/

	PR bootstrap/95413
	* configure: Regenerated.

libstdc++-v3/

	PR bootstrap/95413
	* configure: Regenerated.

libvtv/

	PR bootstrap/95413
	* configure: Regenerated.

lto-plugin/

	PR bootstrap/95413
	* configure: Regenerated.

zlib/

	PR bootstrap/95413
	* configure: Regenerated.

When defaulting CET run-time support to auto, check if -fcf-protection
works.  Even if the stage1 GCC doesn't support -fcf-protection, since
the final GCC does, CET run-time support will be enabled by default if
binutils support CET.

config/

	PR bootstrap/95147
	* cet.m4 (GCC_CET_FLAGS): Also check if -fcf-protection works
	when defaulting to auto.

libatomic/

	PR bootstrap/95147
	* configure: Regenerated.

libbacktrace/

	PR bootstrap/95147
	* configure: Regenerated.

libgcc/

	PR bootstrap/95147
	* configure: Regenerated.

libgfortran/

	PR bootstrap/95147
	* configure: Regenerated.

libgomp/

	PR bootstrap/95147
	* configure: Regenerated.

libitm/

	PR bootstrap/95147
	* configure: Regenerated.

libobjc/

	PR bootstrap/95147
	* configure: Regenerated.

libphobos/

	PR bootstrap/95147
	* configure: Regenerated.

libquadmath/

	PR bootstrap/95147
	* configure: Regenerated.

libsanitizer/

	PR bootstrap/95147
	* configure: Regenerated.

libssp/

	PR bootstrap/95147
	* configure: Regenerated.

libstdc++-v3/

	PR bootstrap/95147
	* configure: Regenerated.

libvtv/

	PR bootstrap/95147
	* configure: Regenerated.

zlib/

	PR bootstrap/95147
	* configure: Regenerated.

CET has been added since GCC 8.  This patch defaults CET run-time support
to auto.  It enables CET run-time support if asssembler supports CET
instructions and multi-byte NOPs are enabled via SSE2.

config/

	* cet.m4 (GCC_CET_FLAGS): Change default to auto.

gcc/

	* configure: Regenerated.

libatomic/

	* configure: Regenerated.

libbacktrace/

	* configure: Regenerated.

libcc1/

	* configure: Regenerated.

libcpp/

	* configure: Regenerated.

libdecnumber/

	* configure: Regenerated.

libgcc/

	* configure: Regenerated.

libgfortran/

	* configure: Regenerated.

libgomp/

	* configure: Regenerated.

libitm/

	* configure: Regenerated.

libobjc/

	* configure: Regenerated.

libquadmath/

	* configure: Regenerated.

libsanitizer/

	* configure: Regenerated.

libssp/

	* configure: Regenerated.

libstdc++-v3/

	* configure: Regenerated.

libvtv/

	* configure: Regenerated.

zlib/

	* configure: Regenerated.

Introduce math_force_eval_div to use generic division to generate
INEXACT as well as INVALID and DIVZERO exceptions.

libgcc/ChangeLog:

	* config/i386/sfp-exceptions.c (__math_force_eval): Remove.
	(__math_force_eval_div): New define.
	(__sfp_handle_exceptions): Use __math_force_eval_div to use
	generic division to generate INVALID, DIVZERO and INEXACT
	exceptions.

libatomic/ChangeLog:

	* config/x86/fenv.c (__math_force_eval): Remove.
	(__math_force_eval_div): New define.
	(__atomic_deraiseexcept): Use __math_force_eval_div to use
	generic division to generate INVALID, DIVZERO and INEXACT
	exceptions.

libgfortran/ChangeLog:

	* config/fpu-387.h (__math_force_eval): Remove.
	(__math_force_eval_div): New define.
	(local_feraiseexcept): Use __math_force_eval_div to use
	generic division to generate INVALID, DIVZERO and INEXACT
	exceptions.
	(struct fenv): Define named struct instead of typedef.

Introduce math_force_eval to evaluate generic division to generate
INVALID and DIVZERO exceptions.

libgcc/ChangeLog:

	* config/i386/sfp-exceptions.c (__math_force_eval): New define.
	(__sfp_handle_exceptions): Use __math_force_eval to evaluete
	generic division to generate INVALID and DIVZERO exceptions.

libatomic/ChangeLog:

	* config/x86/fenv.c (__math_force_eval): New define.
	(__atomic_feraiseexcept): Use __math_force_eval to evaluete
	generic division to generate INVALID and DIVZERO exceptions.

libgfortran/ChangeLog:

	* config/fpu-387.h (__math_force_eval): New define.
	(local_feraiseexcept): Use __math_force_eval to evaluete
	generic division to generate INVALID and DIVZERO exceptions.

According to "Intel 64 and IA32 Arch SDM, Vol. 3:

"Because SIMD floating-point exceptions are precise and occur immediately,
the situation does not arise where an x87 FPU instruction, a WAIT/FWAIT
instruction, or another SSE/SSE2/SSE3 instruction will catch a pending
unmasked SIMD floating-point exception."

Remove unneeded assignments to volatile memory.

libgcc/ChangeLog:

	* config/i386/sfp-exceptions.c (__sfp_handle_exceptions) [__SSE_MATH__]:
	Remove unneeded assignments to volatile memory.

libatomic/ChangeLog:

	* config/x86/fenv.c (__atomic_feraiseexcept) [__SSE_MATH__]:
	Remove unneeded assignments to volatile memory.

libgfortran/ChangeLog:

	* config/fpu-387.h (local_feraiseexcept) [__SSE_MATH__]:
	Remove unneeded assignments to volatile memory.

Fix a problem with the libatomic testsuite using a method to determine
the compiler to use resulting in the tool being different from one the
library has been built with, and causing a catastrophic failure from the
lack of a suitable `--sysroot=' option where the `--with-build-sysroot='
configuration option has been used to build the compiler resulting in
the inability to link executables.

Address this problem by providing a DejaGNU configuration file defining
the compiler to use, via the GCC_UNDER_TEST TCL variable, set from $CC
by autoconf, which will have all the required options set for the target
compiler to build executables in the environment configured, removing
failures like:

.../bin/riscv64-linux-gnu-ld: cannot find crt1.o: No such file or directory
.../bin/riscv64-linux-gnu-ld: cannot find -lm
collect2: error: ld returned 1 exit status
compiler exited with status 1
FAIL: libatomic.c/atomic-compare-exchange-1.c (test for excess errors)
Excess errors:
.../bin/riscv64-linux-gnu-ld: cannot find crt1.o: No such file or directory
.../bin/riscv64-linux-gnu-ld: cannot find -lm

UNRESOLVED: libatomic.c/atomic-compare-exchange-1.c compilation failed to produce executable

and bringing overall test results for the `riscv64-linux-gnu' target
(here with the `x86_64-linux-gnu' host and RISC-V QEMU in the Linux user
emulation mode as the target board) from:

		=== libatomic Summary ===

# of unexpected failures	27
# of unresolved testcases	27

to:

		=== libatomic Summary ===

# of expected passes		54

	libatomic/
	* configure.ac: Add testsuite/libatomic-site-extra.exp to output
	files.
	* configure: Regenerate.
	* libatomic/testsuite/libatomic-site-extra.exp.in: New file.
	* testsuite/Makefile.am (EXTRA_DEJAGNU_SITE_CONFIG): New
	variable.
	* testsuite/Makefile.in: Regenerate.

2020-02-22  Jakub Jelinek  <jakub@redhat.com>

	PR other/55930
	* Makefile.am (M_DEPS): Guard the empty definition with
	@AMDEP_FALSE@ rather than @AMDEP_TRUE@.
	* Makefile.in: Regenerated.

	PR other/55930
	* Makefile.am (M_DEPS): Honor -disable-dependency-tracking.
	* Makefile.in: Regenerated.

Provide means, in the form of a `--with-toolexeclibdir=' configuration
option, to override the default installation directory for target
libraries, otherwise known as $toolexeclibdir.  This is so that it is
possible to get newly-built libraries, particularly the shared ones,
installed in a common place, so that they can be readily used by the
target system as their host libraries, possibly over NFS, without a need
to manually copy them over from the currently hardcoded location they
would otherwise be installed in.

In the presence of the `--enable-version-specific-runtime-libs' option
and for configurations building native GCC the option is ignored.

	config/
	* toolexeclibdir.m4: New file.

	gcc/
	* doc/install.texi (Cross-Compiler-Specific Options): Document
	`--with-toolexeclibdir' option.

	libada/
	* Makefile.in (configure_deps): Add `toolexeclibdir.m4'.
	* configure.ac: Handle `--with-toolexeclibdir='.
	* configure: Regenerate.

	libatomic/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* testsuite/Makefile.in: Regenerate.

	libffi/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* include/Makefile.in: Regenerate.
	* man/Makefile.in: Regenerate.
	* testsuite/Makefile.in: Regenerate.

	libgcc/
	* Makefile.in (configure_deps): Add `toolexeclibdir.m4'.
	* configure.ac: Handle `--with-toolexeclibdir='.
	* configure: Regenerate.

	libgfortran/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

	libgomp/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* testsuite/Makefile.in: Regenerate.

	libhsail-rt/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

	libitm/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* testsuite/Makefile.in: Regenerate.

	libobjc/
	* Makefile.in (aclocal_deps): Add `toolexeclibdir.m4'.
	* aclocal.m4: Include `toolexeclibdir.m4'.
	* configure.ac: Handle `--with-toolexeclibdir='.
	* configure: Regenerate.

	liboffloadmic/
	* plugin/configure.ac: Handle `--with-toolexeclibdir='.
	* plugin/Makefile.in: Regenerate.
	* plugin/aclocal.m4: Regenerate.
	* plugin/configure: Regenerate.
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

	libphobos/
	* m4/druntime.m4: Handle `--with-toolexeclibdir='.
	* m4/Makefile.in: Regenerate.
	* libdruntime/Makefile.in: Regenerate.
	* src/Makefile.in: Regenerate.
	* testsuite/Makefile.in: Regenerate.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

	libquadmath/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

	libsanitizer/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* asan/Makefile.in: Regenerate.
	* interception/Makefile.in: Regenerate.
	* libbacktrace/Makefile.in: Regenerate.
	* lsan/Makefile.in: Regenerate.
	* sanitizer_common/Makefile.in: Regenerate.
	* tsan/Makefile.in: Regenerate.
	* ubsan/Makefile.in: Regenerate.

	libssp/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

	libstdc++-v3/
	* acinclude.m4: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* doc/Makefile.in: Regenerate.
	* include/Makefile.in: Regenerate.
	* libsupc++/Makefile.in: Regenerate.
	* po/Makefile.in: Regenerate.
	* python/Makefile.in: Regenerate.
	* src/Makefile.in: Regenerate.
	* src/c++11/Makefile.in: Regenerate.
	* src/c++17/Makefile.in: Regenerate.
	* src/c++98/Makefile.in: Regenerate.
	* src/filesystem/Makefile.in: Regenerate.
	* testsuite/Makefile.in: Regenerate.

	libvtv/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* testsuite/Makefile.in: Regenerate.

	zlib/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

From-SVN: r279813

A change made with r275564 ("[ARM/FDPIC v6 02/24] [ARM] FDPIC: Handle 
arm*-*-uclinuxfdpiceabi in configure scripts") to libtool.m4 has not 
regenerated all the `configure' scripts affected.  Fix it.

	gcc/
	* configure: Regenerate.

	libatomic/
	* configure: Regenerate.

	libbacktrace/
	* configure: Regenerate.

	libcc1/
	* configure: Regenerate.

	libffi/
	* configure: Regenerate.

	libgfortran/
	* configure: Regenerate.

	libgomp/
	* configure: Regenerate.

	libhsail-rt/
	* configure: Regenerate.

	libitm/
	* configure: Regenerate.

	libobjc/
	* configure: Regenerate.

	liboffloadmic/
	* 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.

From-SVN: r276213

The new arm-uclinuxfdpiceabi target behaves pretty much like
arm-linux-gnueabi. In order to enable the same set of features, we
have to update several configure scripts that generally match targets
like *-*-linux*: in most places, we add *-uclinux* where there is
already *-linux*, or uclinux* when there is already linux*.

In gcc/config.gcc and libgcc/config.host we use *-*-uclinuxfdpiceabi
because there is already a different behaviour for *-*uclinux* target.

In libtool.m4, we use uclinuxfdpiceabi in cases where ELF shared
libraries support is required, as uclinux does not guarantee that.

2019-09-10  Christophe Lyon  <christophe.lyon@st.com>

	config/
	* futex.m4: Handle *-uclinux*.
	* tls.m4 (GCC_CHECK_TLS): Likewise.

	gcc/
	* config.gcc: Handle *-*-uclinuxfdpiceabi.

	libatomic/
	* configure.tgt: Handle arm*-*-uclinux*.
	* configure: Regenerate.

	libgcc/
	* config.host: Handle *-*-uclinuxfdpiceabi.

	libitm/
	* configure.tgt: Handle *-*-uclinux*.
	* configure: Regenerate.

	* libtool.m4: Handle uclinuxfdpiceabi.

From-SVN: r275564

2019-09-03  Chung-Lin Tang <cltang@codesourcery.com>

	libatomic/
	PR other/79543
	* acinclude.m4 (LIBAT_CHECK_LINKER_FEATURES): Fix GNU ld --version
	scanning to conform to the GNU Coding Standards.
	* configure: Regenerate.

	libffi/
	PR other/79543
	* acinclude.m4 (LIBAT_CHECK_LINKER_FEATURES): Fix GNU ld --version
	scanning to conform to the GNU Coding Standards.
	* configure: Regenerate.

	libgomp/
	PR other/79543
	* acinclude.m4 (LIBGOMP_CHECK_LINKER_FEATURES): Fix GNU ld --version
	scanning to conform to the GNU Coding Standards.
	* configure: Regenerate.

	libitm/
	PR other/79543
	* acinclude.m4 (LIBITM_CHECK_LINKER_FEATURES): Fix GNU ld --version
	scanning to conform to the GNU Coding Standards.
	* configure: Regenerate.

	libstdc++-v3/
	PR other/79543
	* acinclude.m4 (GLIBCXX_CHECK_LINKER_FEATURES): Fix GNU ld --version
	scanning to conform to the GNU Coding Standards.
	* configure: Regenerate.

From-SVN: r275341

This is a roll-up of a set of changes needed to support the Arm EABI on NetBSD.

2019-06-14  Matt Thomas  <matt@3am-software.com>
	    Matthew Green  <mrg@eterna.com.au>
	    Nick Hudson  <skrll@netbsd.org>
	    Maya Rashish  <coypu@sdf.org>
	    Richard Earnshaw  <rearnsha@arm.com>

gcc:

	* config.gcc (arm*-*-netbsdelf*) Add support for EABI configuration.
	* config.host (arm*-*-netbsd*): Use driver-arm.o on native NetBSD.
	* config/arm/netbsd-eabi.h: New file.
	* config/arm/netbsd-elf.h (TARGET_OS_CPP_BUILTINS): Undefine before
	redefining.
	(SUBTARGET_EXTRA_ASM_SPEC): Don't pass -matpcs to the assembler.
	* config/netbsd-elf.h (NETBSD_LINK_LD_ELF_SO_SPEC): New define.
	(NETBSD_SUBTARGET_EXTRA_SPECS): New define.
	(SUBTARGET_EXTRA_SPECS): Define to NETBSD_SUBTARGET_EXTRA_SPECS.

libatomic:
	* configure.tgt (arm*): Handle NetBSD in the same way as FreeBSD.

libgcc:
	* config.host (arm*-*-netbsdelf*): Add support for EABI configurations.
	* config/arm/t-netbsd (LIB1ASMFUNCS): Add some additional assembler
	functions to build.
	* config/arm/t-netbsd-eabi: New file.


Co-Authored-By: Matthew Green <mrg@eterna.com.au>
Co-Authored-By: Maya Rashish <coypu@sdf.org>
Co-Authored-By: Nick Hudson <skrll@netbsd.org>
Co-Authored-By: Richard Earnshaw <rearnsha@arm.com>

From-SVN: r272290

From-SVN: r267494

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

From-SVN: r263886

2018-06-21  Christophe Lyon  <christophe.lyon@linaro.org>

	libatomic/
	* config/arm/arm-config.h (__ARM_ARCH__): Remove definitions, use
	__ARM_ARCH instead. Use __ARM_FEATURE_LDREX to define HAVE_STREX
	and HAVE_STREXBHD

	libgcc/
	* config/arm/lib1funcs.S (__ARM_ARCH__): Remove definitions, use
	__ARM_ARCH and __ARM_FEATURE_CLZ instead.
	(HAVE_ARM_CLZ): Remove definition, use __ARM_FEATURE_CLZ instead.
	* config/arm/ieee754-df.S: Use __ARM_FEATURE_CLZ instead of
	__ARM_ARCH__.
	* config/arm/ieee754-sf.S: Likewise.
	* config/arm/libunwind.S: Use __ARM_ARCH instead of __ARM_ARCH__.

From-SVN: r261841

	PR libgcc/60790
	x86: Do not assume ELF constructors run before IFUNC resolvers.
	* config/x86/host-config.h (libat_feat1_ecx, libat_feat1_edx):
	Remove declarations.
	(__libat_feat1, __libat_feat1_init): Declare.
	(FEAT1_REGISTER): Define.
	(load_feat1): New function.
	(IFUNC_COND_1): Adjust.
	* config/x86/init.c (libat_feat1_ecx, libat_feat1_edx)
	(init_cpuid): Remove definitions.
	(__libat_feat1): New variable.
	(__libat_feat1_init): New function.

From-SVN: r260603

2018-05-02  Tom de Vries  <tom@codesourcery.com>

	PR testsuite/85106
	* gcc.dg/ipa/ipa-icf-38.c: Use scan-ltrans-tree-dump.
	* lib/scanltranstree.exp: New file.
	* lib/target-supports.exp (scan-ltrans-tree-dump_required_options)
	(scan-ltrans-tree-dump-times_required_options)
	(scan-ltrans-tree-dump-not_required_options)
	(scan-ltrans-tree-dump-dem_required_options)
	(scan-ltrans-tree-dump-dem-not_required_options): New proc.
	* lib/gcc-dg.exp: Include scanltranstree.exp.

	* testsuite/lib/libatomic.exp: Include scanltranstree.exp.

	* testsuite/lib/libgomp.exp: Include scanltranstree.exp.

	* testsuite/lib/libitm.exp: Include scanltranstree.exp.

	* testsuite/lib/libvtv.exp: Include scanltranstree.exp.

	* doc/sourcebuild.texi (Commands for use in dg-final, Scan optimization
	dump files): Add ltrans-tree.

From-SVN: r259838

2018-05-02  Tom de Vries  <tom@codesourcery.com>

	PR testsuite/85106
	* gcc.dg/ipa/ipa-icf-38.c: New test.
	* gcc.dg/ipa/ipa-icf-38a.c: New test.
	* lib/scandump.exp (dump-base): New proc.
	(scan-dump, scan-dump-times, scan-dump-not, scan-dump-dem)
	(scan-dump-dem-not): Add and handle parameter for suffix of the dump
	base.
	* lib/scanipa.exp: Add "" argument to scan-dump calls.
	* lib/scanlang.exp: Same.
	* lib/scanrtl.exp: Same.
	* lib/scantree.exp: Same.
	* lib/scanwpaipa.exp: New file.
	* lib/gcc-dg.exp: Include scanwpaipa.exp.

	* testsuite/lib/libatomic.exp: Include scanwpaipa.exp.

	* testsuite/lib/libgomp.exp: Include scanwpaipa.exp.

	* testsuite/lib/libitm.exp: Include scanwpaipa.exp.

	* testsuite/lib/libvtv.exp: Include scanwpaipa.exp.

	* doc/sourcebuild.texi (Commands for use in dg-final, Scan optimization
	dump files): Add wpa-ipa.

From-SVN: r259837

	* configure: Regenerated.

From-SVN: r259610

cet.m4 (GCC_CET_FLAGS): Default to --disable-cet, replace --enable-cet=default with --enable-cet=auto.

	* 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

The compiler builtin will use the hardware instruction cdsg if the
memory operand is properly aligned and will fall back to the
library call otherwise.
In case the compiler for one part is able to detect that the
location is aligned and fails to do so for another usage of the hw
instruction and the sw fall back would be mixed on the same memory
location.  To avoid this the library fall back also has to use the
hardware instruction if possible.

libatomic/ChangeLog:

2018-03-09  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/exch_n.c: New file.
	* configure.tgt: Add the config directory for s390.

From-SVN: r258384

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

From-SVN: r256169

2017-12-14  Steve Ellcey  <sellcey@cavium.com>

	* Makefile.am (IFUNC_OPTIONS): Change aarch64
	option from -march=armv8.1-a to -march=armv8-a+lse.
	* configure.ac (*aarch64*): Check to see if
	compiler understands -march=armv8-a+lse option.
	* configure.tgt (*aarch64*): Only set try_ifunc
	if compiler understands -march=armv8-a+lse option.
	* Makefile.in: Regenerate.
	* testsuite/Makefile.in: Regenerate.
	* configure: Regenerate.
	* aclocal.m4: Regenerate.

From-SVN: r255659

2017-12-04  Steve Ellcey  <sellcey@cavium.com>

	* Makefile.am (ARCH_AARCH64_LINUX): Add IFUNC_OPTIONS and
	libatomic_la_LIBADD.
	* config/linux/aarch64/host-config.h: New file.
	* configure.ac (IFUNC_RESOLVER_ARGS): Define.
	(ARCH_AARCH64_LINUX): New conditional for IFUNC builds.
	* configure.tgt (aarch64): Set ARCH and try_ifunc.
	(aarch64*-*-linux*) Update config_path.
	(aarch64*-*-linux*) Set IFUNC_RESOLVER_ARGS.
	* libatomic_i.h (GEN_SELECTOR): Add IFUNC_RESOLVER_ARGS argument.
	* Makefile.in: Regenerate.
	* auto-config.h.in: Regenerate.
	* configure: Regenerate.

From-SVN: r255399

libatomic/
	* configure.ac: Set CET_FLAGS, update XCFLAGS.
	* acinclude.m4: Add cet.m4 and enable.m4.
	* configure: Regenerate.
	* Makefile.in: Likewise.
	* testsuite/Makefile.in: Likewise.

From-SVN: r254893

Libatomic builds a few functions for Arm with an explicit -march
option.  This option does not specify an FPU, which can lead to
problems when targeting a hard-float or softfp environment since the
architecture appears to be incompatible with the selected ABI.

The fix is simple enough, just add +fp (the minimum floating point
option) to the architecture.  We don't use anything from the FP
architecture, so it shouldn't really change anything; and if we are
building for -mfloat-abi=soft the canonicalization process will remove
the unnecessary fp attributes anyway.

	* Makefile.am: (IFUNC_OPTIONS): Set the architecture to
	-march=armv7-a+fp on Linux/Arm.
	* Makefile.in: Regenerated.

From-SVN: r253935

libatomic/ChangeLog:
2017-10-02  Martin Sebor  <msebor@redhat.com>

	PR c/81854
	* acinclude.m4 (LIBAT_CHECK_IFUNC): Have ifunc resolver return
	a function pointer rather than void* to avoid GCC 8 warnings.
	* configure: Regenerate.
	* libatomic_i.h: Declare ifunc resolvers to return function
	pointers rather than void*.

From-SVN: r253372