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query for select(2) in preparation of sleep and read-with-timeout builtins; ualarm(3) and friends are too awkward to use so we ifdef these builtins on select support ☹

This commit is contained in:
tg 2011-02-09 19:32:26 +00:00
parent 8610728bf6
commit 8b73363c20
1 changed files with 33 additions and 3 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 1.469 2011/01/30 02:18:19 tg Exp $'
srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.470 2011/02/09 19:32:26 tg Exp $'
#-
# Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
# Thorsten Glaser <tg@mirbsd.org>
@ -1074,18 +1074,22 @@ ac_ifcpp 'ifdef MKSH_CONSERVATIVE_FDS' isset_MKSH_CONSERVATIVE_FDS '' \
#
# Environment: headers
#
ac_header sys/param.h
ac_header sys/bsdtypes.h
ac_header sys/file.h sys/types.h
ac_header sys/mkdev.h sys/types.h
ac_header sys/mman.h sys/types.h
ac_header sys/param.h
ac_header sys/select.h sys/types.h
ac_header sys/sysmacros.h
ac_header bstring.h
ac_header grp.h sys/types.h
ac_header libgen.h
ac_header libutil.h sys/types.h
ac_header paths.h
ac_header stdbool.h
ac_header stdint.h stdarg.h
ac_header strings.h sys/types.h
# include strings.h only if compatible with string.h
ac_header strings.h sys/types.h string.h
ac_header ulimit.h sys/types.h
ac_header values.h
@ -1278,6 +1282,32 @@ ac_test langinfo_codeset setlocale_ctype 0 'nl_langinfo(CODESET)' <<-'EOF'
int main(void) { return ((int)(ptrdiff_t)(void *)nl_langinfo(CODESET)); }
EOF
ac_test select <<-'EOF'
#include <sys/types.h>
#include <sys/time.h>
#if HAVE_SYS_BSDTYPES_H
#include <sys/bsdtypes.h>
#endif
#if HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif
#if HAVE_BSTRING_H
#include <bstring.h>
#endif
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#if HAVE_STRINGS_H
#include <strings.h>
#endif
#include <unistd.h>
int main(void) {
struct timeval tv = { 1, 200000 };
fd_set fds; FD_ZERO(&fds); FD_SET(0, &fds);
return (select(FD_SETSIZE, &fds, NULL, NULL, &tv));
}
EOF
ac_test setresugid <<-'EOF'
#include <sys/types.h>
#include <unistd.h>