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now we can actually prefer sys_errlist[] (oh, and _sys_errlist[] also exists, a̲n̲d̲ fix a pasto) over strerror(3) like we do for sys_siglist[] and strsignal(3); our implementation is smaller and does more code reuse than even MirBSD libc’s after all

This commit is contained in:
tg 2012-12-17 23:31:30 +00:00
parent 12c662b6e2
commit 8e6fa9a5c6
1 changed files with 25 additions and 14 deletions
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39
Build.sh
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@ -1,5 +1,5 @@
#!/bin/sh
srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.602 2012/12/17 23:18:01 tg Exp $'
srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.603 2012/12/17 23:31:30 tg Exp $'
#-
# Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
# 2011, 2012
@ -1527,7 +1527,7 @@ else
#define EXTERN
#define MKSH_INCLUDES_ONLY
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/Build.sh,v 1.602 2012/12/17 23:18:01 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/Build.sh,v 1.603 2012/12/17 23:31:30 tg Exp $");
int main(void) { printf("Hello, World!\n"); return (0); }
EOF
case $cm in
@ -1560,10 +1560,27 @@ EOF
fi
#
# Environment: signals
# Environment: errors and signals
#
test x"NetBSD" = x"$TARGET_OS" && $e Ignore the compatibility warning.
ac_testn sys_errlist '' "the sys_errlist[] array and sys_nerr" <<-'EOF'
extern int sys_nerr;
extern char *sys_errlist[];
int main(void) { return (*sys_errlist[sys_nerr - 1]); }
EOF
ac_testn _sys_errlist '!' sys_errlist 0 "the _sys_errlist[] array and _sys_nerr" <<-'EOF'
extern int _sys_nerr;
extern char *_sys_errlist[];
int main(void) { return (*_sys_errlist[_sys_nerr - 1]); }
EOF
if test 1 = "$HAVE__SYS_ERRLIST"; then
add_cppflags -Dsys_nerr=_sys_nerr
add_cppflags -Dsys_errlist=_sys_errlist
HAVE_SYS_ERRLIST=1
fi
ac_cppflags SYS_ERRLIST
for what in name list; do
uwhat=`upper $what`
ac_testn sys_sig$what '' "the sys_sig${what}[] array" <<-EOF
@ -1582,12 +1599,6 @@ for what in name list; do
ac_cppflags SYS_SIG$uwhat
done
ac_test strsignal '!' sys_siglist 0 <<-'EOF'
#include <string.h>
#include <signal.h>
int main(void) { return (strsignal(1)[0]); }
EOF
#
# Environment: library functions
#
@ -1774,15 +1785,15 @@ EOF
fi
fi
ac_test strerror <<-'EOF'
ac_test strerror '!' sys_errlist 0 <<-'EOF'
extern char *strerror(int);
int main(int ac, char *av[]) { return (*strerror(*av[ac])); }
EOF
ac_test sys_errlist '!' strerror 0 "the sys_signame[] array and sys_nerr" <<-'EOF'
extern int sys_nerr;
extern char *sys_errlist[];
int main(void) { return (*sys_errlist[sys_nerr - 1]); }
ac_test strsignal '!' sys_siglist 0 <<-'EOF'
#include <string.h>
#include <signal.h>
int main(void) { return (strsignal(1)[0]); }
EOF
ac_test strlcpy <<-'EOF'