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Sandra Loosemore 02ce382cd3 Use a non-empty test program to test ability to link. 
On bare-metal targets, I/O support is typically provided by a BSP and
requires a linker script and/or hosting library to be specified on the
linker command line.  Linking an empty program with the default linker
script may succeed, however, which confuses libstdc++ configuration
when programs that probe for the presence of various I/O features fail
with link errors.

2020-02-12  Sandra Loosemore  <sandra@codesourcery.com>

	PR libstdc++/79193
	PR libstdc++/88999

	config/
	* no-executables.m4: Use a non-empty program to test for linker
	support.

	libgcc/
	* configure: Regenerated.

	libgfortran/
	* configure: Regenerated.

	libiberty/
	* configure: Regenerated.

	libitm/
	* configure: Regenerated.

	libobjc/
	* configure: Regenerated.

	libquadmath/
	* configure: Regenerated.

	libssp/
	* configure: Regenerated.

	libstdc++v-3/
	* configure: Regenerated.
2020-02-12 13:22:07 -08:00
..
math
printf
strtod
acinclude.m4
aclocal.m4 Add `--with-toolexeclibdir=' configuration option 2020-01-24 11:24:25 +00:00
ChangeLog Use a non-empty test program to test ability to link. 2020-02-12 13:22:07 -08:00
config.h.in
configure Use a non-empty test program to test ability to link. 2020-02-12 13:22:07 -08:00
configure.ac Add `--with-toolexeclibdir=' configuration option 2020-01-24 11:24:25 +00:00
COPYING.LIB
libquadmath.texi
libtool-version
Makefile.am
Makefile.in Add `--with-toolexeclibdir=' configuration option 2020-01-24 11:24:25 +00:00
quadmath_weak.h
quadmath-imp.h
quadmath-rounding-mode.h
quadmath.h
quadmath.map
update-quadmath.py