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patch 8.2.2550: signal stack size is wrong with latest glibc 2.34

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Problem:    Signal stack size is wrong with latest glibc 2.34.
Solution:   Use sysconf(_SC_SIGSTKSZ) if available. (Zdenek Dohnal, closes
            #7895)
This commit is contained in:
Bram Moolenaar
2021-02-25 17:17:56 +01:00
parent 1bd3cb2019
commit 0e62a6742b
5 changed files with 51 additions and 1 deletions
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24
src/auto/configure vendored
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@@ -13943,6 +13943,30 @@ $as_echo "not usable" >&6; }
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for _SC_SIGSTKSZ via sysconf()" >&5
$as_echo_n "checking for _SC_SIGSTKSZ via sysconf()... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <unistd.h>
int
main ()
{
(void)sysconf(_SC_SIGSTKSZ);
;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }; $as_echo "#define HAVE_SYSCONF_SIGSTKSZ 1" >>confdefs.h
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: not usable" >&5
$as_echo "not usable" >&6; }
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.