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12 Commits

Author SHA1 Message Date
Darren Tucker f9193f03db
Improve detection of -fzero-call-used-regs=used. 
Should better detect problems with gcc 13 on m68k.  bz#3673 from Colin
Watson via bz#3673 and https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110934

Signed-off-by: Darren Tucker <dtucker@dtucker.net>
 2024-03-25 10:12:58 +11:00
Damien Miller 1036d77b34
better detection of broken -fzero-call-used-regs 
gcc 13.2.0 on ppc64le refuses to compile some function, including
cipher.c:compression_alg_list() with an error:

> sorry, unimplemented: argument ‘used’ is not supportedcw
> for ‘-fzero-call-used-regs’ on this target

This extends the autoconf will-it-work test with a similarly-
structured function that seems to catch this.

Spotted/tested by Colin Watson; bz3645
 2023-12-22 17:56:26 +11:00
Damien Miller 59d691b886
better detection of broken -fzero-call-used-regs 
Use OSSH_CHECK_CFLAG_LINK() for detection of these flags and extend
test program to exercise varargs, which seems to catch more stuff.

ok dtucker@
 2023-12-18 14:49:11 +11:00
Darren Tucker 747dce3620
Use non-zero arg in compiler test program. 
Now that we're running the test program, passing zero to the test function
can cause divide-by-zero exceptions which might show up in logs.
 2023-11-25 09:03:38 +11:00
Darren Tucker 670f5a647e
Check return value from write to prevent warning. 
... and since we're testing for flags with -Werror, this caused
configure to mis-detect compiler flags.
 2023-11-23 19:34:57 +11:00
Darren Tucker cea007d691
Run compiler test program when compiling natively. 
ok djm@
 2023-11-23 14:40:51 +11:00
Darren Tucker ee0d305828
Factor out compiler test program into a macro. 
ok djm@
 2023-11-23 14:40:48 +11:00
Darren Tucker 99a2df5e19
Expand -fzero-call-used-regs test to cover gcc 11. 
It turns out that gcc also has some problems with -fzero-call-used-regs,
at least v11 on mips.  Previously the test in OSSH_CHECK_CFLAG_COMPILE
was sufficient to catch it with "=all", but not sufficient for "=used".
Expand the testcase and include it in the other tests for good measure.
See bz#3629.  ok djm@.
 2023-11-21 16:24:17 +11:00
Colin Watson f107467179 Improve detection of -fzero-call-used-regs=all support 
GCC doesn't tell us whether this option is supported unless it runs into
the situation where it would need to emit corresponding code.
 2022-02-25 11:24:04 +11:00
Darren Tucker a019e353df Replace AC_TRY_COMPILE obsoleted in autoconf 2.70. 
Replace with the equivalent AC_COMPILE_IFELSE.
 2020-11-06 13:56:41 +11:00
Sebastian Andrzej Siewior 4bf7e1d00b Quote the definition of OSSH_CHECK_HEADER_FOR_FIELD 
autoreconf complains about underquoted definition of
OSSH_CHECK_HEADER_FOR_FIELD after aclocal.m4 has been and now is beeing
recreated.

Quote OSSH_CHECK_HEADER_FOR_FIELD as suggested.

Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
 2020-09-11 13:18:42 +10:00
Sebastian Andrzej Siewior a2f3ae386b Move the local m4 macros 
The `aclocal' step is skipped during `autoreconf' because aclocal.m4 is
present.
Move the current aclocal.m4 which contains local macros into the m4/
folder. With this change the aclocal.m4 will be re-created during
changes to the m4/ macro.
This is needed so the `aclocal' can fetch m4 macros from the system if
they are references in the configure script. This is a prerequisite to
use PKG_CHECK_MODULES.

Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
 2020-09-11 13:18:42 +10:00