I noticed that libbacktrace make check FAILs on Solaris with the native
ld already when building the tests:

libtool: link: /var/gcc/regression/master/11.4-gcc/build/./gcc/xgcc -B/var/gcc/r
egression/master/11.4-gcc/build/./gcc/ -B/vol/gcc/sparc-sun-solaris2.11/bin/ -B/
vol/gcc/sparc-sun-solaris2.11/lib/ -isystem /vol/gcc/sparc-sun-solaris2.11/inclu
de -isystem /vol/gcc/sparc-sun-solaris2.11/sys-include -fchecking=1 -funwind-tab
les -frandom-seed=ctesta_alloc -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmi
ssing-prototypes -Wold-style-definition -Wmissing-format-attribute -Wcast-qual -
Werror -g -g -O2 -Wl,--compress-debug-sections=zlib-gabi -o ctesta_alloc ctesta_
alloc-btest.o ctesta_alloc-testlib.o  ./.libs/libbacktrace_alloc.a
ld: fatal: unrecognized '--compress-debug-sections' cmp-type: zlib-gabi
collect2: error: ld returned 1 exit status
make[1]: *** [Makefile:1379: ctesta_alloc] Error 1

Solaris ld only supports --compress-debug-sections=zlib, while GNU ld
allows zlib-gabi as an alias for zlib.  gold is the same, it seems,
while lld doesn't support zlib-gabi at all.

Therefore the patch uses zlib instead.

Tested on i386-pc-solaris2.11 with ld and gld and x86_64-pc-linux-gnu
with gld.

With this patch, libbacktrace make check PASSes on Solaris.
Unfortunately, this is quite easy to miss since the make check output
isn't in DejaGnu summary format, thus not picked up by make
mail-report.log.  I mean to adapt the libgo support to produce that
output format for libbacktrace to fix this.

Ok for trunk?

	Rainer

-- 
-----------------------------------------------------------------------------
Rainer Orth, Center for Biotechnology, Bielefeld University


2024-04-05  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	libbacktrace:
	* Makefile.am (ctestg_LDFLAGS): Use
	-Wl,--compress-debug-sections=zlib instead of zlib-gabi.
	(ctesta_LDFLAGS): Likewise.
	* Makefile.in: Regenerate.