[gdb/testsuite] Fix gdb.multi/multi-arch.exp on powerpc64le
When running test-case gdb.multi/multi-arch.exp on powerpc64le-linux, I run into:
...
Running gdb/testsuite/gdb.multi/multi-arch.exp ...
gdb compile failed, In file included from /usr/include/features.h:399:0,
from /usr/include/stdio.h:27,
from gdb/testsuite/gdb.multi/hangout.c:18:
/usr/include/gnu/stubs.h:8:27: fatal error: gnu/stubs-32.h: \
No such file or directory
# include <gnu/stubs-32.h>
^
compilation terminated.
...
The problem is that the test-case attempts to use gcc -m32 to produce an
executable while that's not available.
Fix this by:
- introduce a new caching proc have_compile_and_link_flag, and
- using have_compile_and_link_flag in test-case gdb.multi/multi-arch.exp.
Tested on:
- x86_64-linux (openSUSE Leap 15.4), and
- powerpc64le-linux (CentOS-7).
2 files changed
