Check whether we can take the address of chown, link, and symlink.

This commit is contained in:
Martin v. Löwis 2002-11-11 13:23:45 +00:00
parent eb342298de
commit c8ad7cc55e
3 changed files with 175 additions and 13 deletions

155
configure vendored
View file

@ -1,5 +1,5 @@
#! /bin/sh
# From configure.in Revision: 1.363 .
# From configure.in Revision: 1.364 .
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.53 for python 2.3.
#
@ -11964,18 +11964,15 @@ echo "${ECHO_T}MACHDEP_OBJS" >&6
for ac_func in alarm chown chroot clock confstr ctermid ctermid_r execv \
for ac_func in alarm chown clock confstr ctermid ctermid_r execv \
fchdir flock fork fsync fdatasync fpathconf ftime ftruncate \
gai_strerror getgroups getlogin getpeername getpgid getpid getpwent getwd \
hstrerror inet_pton kill killpg lchown link lstat mkfifo mknod mktime \
hstrerror inet_pton kill killpg lchown lstat mkfifo mknod mktime \
mremap nice pathconf pause plock poll pthread_init \
putenv readlink \
select setegid seteuid setgid setgroups \
setlocale setregid setreuid setsid setpgid setuid setvbuf snprintf \
sigaction siginterrupt sigrelse strftime strptime symlink \
sigaction siginterrupt sigrelse strftime strptime \
sysconf tcgetpgrp tcsetpgrp tempnam timegm times tmpfile tmpnam tmpnam_r \
truncate uname unsetenv utimes waitpid _getpty getpriority
do
@ -12053,6 +12050,150 @@ fi
done
# For some functions, having a definition is not sufficient, since
# we want to take their address.
echo "$as_me:$LINENO: checking for chroot" >&5
echo $ECHO_N "checking for chroot... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
#include "confdefs.h"
#include <unistd.h>
#ifdef F77_DUMMY_MAIN
# ifdef __cplusplus
extern "C"
# endif
int F77_DUMMY_MAIN() { return 1; }
#endif
int
main ()
{
void *x=chroot
;
return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
(eval $ac_compile) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } &&
{ ac_try='test -s conftest.$ac_objext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
cat >>confdefs.h <<\_ACEOF
#define HAVE_CHROOT 1
_ACEOF
echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
echo "$as_me: failed program was:" >&5
cat conftest.$ac_ext >&5
echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: checking for link" >&5
echo $ECHO_N "checking for link... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
#include "confdefs.h"
#include <unistd.h>
#ifdef F77_DUMMY_MAIN
# ifdef __cplusplus
extern "C"
# endif
int F77_DUMMY_MAIN() { return 1; }
#endif
int
main ()
{
void *x=link
;
return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
(eval $ac_compile) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } &&
{ ac_try='test -s conftest.$ac_objext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
cat >>confdefs.h <<\_ACEOF
#define HAVE_LINK 1
_ACEOF
echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
echo "$as_me: failed program was:" >&5
cat conftest.$ac_ext >&5
echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
echo "$as_me:$LINENO: checking for symlink" >&5
echo $ECHO_N "checking for symlink... $ECHO_C" >&6
cat >conftest.$ac_ext <<_ACEOF
#line $LINENO "configure"
#include "confdefs.h"
#include <unistd.h>
#ifdef F77_DUMMY_MAIN
# ifdef __cplusplus
extern "C"
# endif
int F77_DUMMY_MAIN() { return 1; }
#endif
int
main ()
{
void *x=symlink
;
return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
(eval $ac_compile) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } &&
{ ac_try='test -s conftest.$ac_objext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
cat >>confdefs.h <<\_ACEOF
#define HAVE_SYMLINK 1
_ACEOF
echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
else
echo "$as_me: failed program was:" >&5
cat conftest.$ac_ext >&5
echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
rm -f conftest.$ac_objext conftest.$ac_ext
# check for openpty and forkpty

View file

@ -1712,18 +1712,39 @@ fi
AC_MSG_RESULT(MACHDEP_OBJS)
# checks for library functions
AC_CHECK_FUNCS(alarm chown chroot clock confstr ctermid ctermid_r execv \
AC_CHECK_FUNCS(alarm chown clock confstr ctermid ctermid_r execv \
fchdir flock fork fsync fdatasync fpathconf ftime ftruncate \
gai_strerror getgroups getlogin getpeername getpgid getpid getpwent getwd \
hstrerror inet_pton kill killpg lchown link lstat mkfifo mknod mktime \
hstrerror inet_pton kill killpg lchown lstat mkfifo mknod mktime \
mremap nice pathconf pause plock poll pthread_init \
putenv readlink \
select setegid seteuid setgid setgroups \
setlocale setregid setreuid setsid setpgid setuid setvbuf snprintf \
sigaction siginterrupt sigrelse strftime strptime symlink \
sigaction siginterrupt sigrelse strftime strptime \
sysconf tcgetpgrp tcsetpgrp tempnam timegm times tmpfile tmpnam tmpnam_r \
truncate uname unsetenv utimes waitpid _getpty getpriority)
# For some functions, having a definition is not sufficient, since
# we want to take their address.
AC_MSG_CHECKING(for chroot)
AC_TRY_COMPILE([#include <unistd.h>], void *x=chroot,
AC_DEFINE(HAVE_CHROOT, 1, Define if you have the 'chroot' function.)
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no)
)
AC_MSG_CHECKING(for link)
AC_TRY_COMPILE([#include <unistd.h>], void *x=link,
AC_DEFINE(HAVE_LINK, 1, Define if you have the 'link' function.)
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no)
)
AC_MSG_CHECKING(for symlink)
AC_TRY_COMPILE([#include <unistd.h>], void *x=symlink,
AC_DEFINE(HAVE_SYMLINK, 1, Define if you have the 'symlink' function.)
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no)
)
# check for openpty and forkpty
AC_CHECK_FUNCS(openpty,, AC_CHECK_LIB(util,openpty, [AC_DEFINE(HAVE_OPENPTY) LIBS="$LIBS -lutil"]))

View file

@ -42,7 +42,7 @@
/* Define to 1 if you have the `chown' function. */
#undef HAVE_CHOWN
/* Define to 1 if you have the `chroot' function. */
/* Define if you have the 'chroot' function. */
#undef HAVE_CHROOT
/* Define to 1 if you have the `clock' function. */
@ -235,7 +235,7 @@
/* Define to 1 if you have the <limits.h> header file. */
#undef HAVE_LIMITS_H
/* Define to 1 if you have the `link' function. */
/* Define if you have the 'link' function. */
#undef HAVE_LINK
/* Define to 1 if you have the <locale.h> header file. */
@ -444,7 +444,7 @@
`HAVE_STRUCT_STAT_ST_BLOCKS' instead. */
#undef HAVE_ST_BLOCKS
/* Define to 1 if you have the `symlink' function. */
/* Define if you have the 'symlink' function. */
#undef HAVE_SYMLINK
/* Define to 1 if you have the `sysconf' function. */