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check whether klibc sigsuspend() is usable: RT or hpa’s two new methods; if not, deactivate it

This commit is contained in:
tg 2012-05-17 19:36:41 +00:00
parent 6b2aa91ddd
commit 1eebfa8b85
1 changed files with 34 additions and 2 deletions
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36
Build.sh
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@ -1,5 +1,5 @@
#!/bin/sh
srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.569 2012/05/17 19:14:07 tg Exp $'
srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.570 2012/05/17 19:36:41 tg Exp $'
#-
# Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
# 2011, 2012
@ -1452,7 +1452,7 @@ else
#define EXTERN
#define MKSH_INCLUDES_ONLY
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/Build.sh,v 1.569 2012/05/17 19:14:07 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/Build.sh,v 1.570 2012/05/17 19:36:41 tg Exp $");
int main(void) { printf("Hello, World!\n"); return (0); }
EOF
case $cm in
@ -1640,6 +1640,38 @@ ac_test setgroups setresugid 0 <<-'EOF'
int main(void) { gid_t gid = 0; return (setgroups(0, &gid)); }
EOF
if test x"$et" = x"klibc"; then
ac_testn __rt_sigsuspend '' 'whether klibc uses RT signals' <<-'EOF'
#define MKSH_INCLUDES_ONLY
#include "sh.h"
extern int __rt_sigsuspend(const sigset_t *, size_t);
int main(void) { return (__rt_sigsuspend(NULL, 0)); }
EOF
# no? damn! legacy crap ahead!
ac_testn __sigsuspend_s '!' __rt_sigsuspend 1 \
'whether sigsuspend is usable (1/2)' <<-'EOF'
#define MKSH_INCLUDES_ONLY
#include "sh.h"
extern int __sigsuspend_s(sigset_t);
int main(void) { return (__sigsuspend_s(0)); }
EOF
ac_testn __sigsuspend_xxs '!' __sigsuspend_s 1 \
'whether sigsuspend is usable (2/2)' <<-'EOF'
#define MKSH_INCLUDES_ONLY
#include "sh.h"
extern int __sigsuspend_xxs(int, int, sigset_t);
int main(void) { return (__sigsuspend_xxs(0, 0, 0)); }
EOF
if test "000" = "$HAVE___RT_SIGSUSPEND$HAVE___SIGSUSPEND_S$HAVE___SIGSUSPEND_XXS"; then
# no usable sigsuspend(), use pause() *ugh*
add_cppflags -DMKSH_NO_SIGSUSPEND
fi
fi
ac_test strlcpy <<-'EOF'
#include <string.h>
int main(int ac, char *av[]) { return (strlcpy(*av, av[1],