acinclude.m4 (AC_FUNC_MMAP_BLACKLIST): Check for <sys/mman.h> and mmap() explicitly instead of relying on preset...
2004-07-30 Maciej W. Rozycki <macro@linux-mips.org> * acinclude.m4 (AC_FUNC_MMAP_BLACKLIST): Check for <sys/mman.h> and mmap() explicitly instead of relying on preset autoconf cache variables. * aclocal.m4: Regenerate. * configure: Regenerate. From-SVN: r85500
This commit is contained in:
Maciej W. Rozycki
Nathanael Nerode
parent
b522f768ab
commit
4d44736452
|
|
@ -1,3 +1,11 @@
|
|||
2004-07-30 Maciej W. Rozycki <macro@linux-mips.org>
|
||||
|
||||
* acinclude.m4 (AC_FUNC_MMAP_BLACKLIST): Check for <sys/mman.h>
|
||||
and mmap() explicitly instead of relying on preset autoconf cache
|
||||
variables.
|
||||
* aclocal.m4: Regenerate.
|
||||
* configure: Regenerate.
|
||||
|
||||
2004-07-11 Ulrich Weigand <uweigand@de.ibm.com>
|
||||
|
||||
* src/s390/ffi.c (ffi_prep_args): Fix C aliasing violation.
|
||||
|
|
|
|||
|
|
@ -11,8 +11,12 @@ AC_SUBST(LIBTOOL)
|
|||
# mmap(2) blacklisting. Some platforms provide the mmap library routine
|
||||
# but don't support all of the features we need from it.
|
||||
AC_DEFUN([AC_FUNC_MMAP_BLACKLIST],
|
||||
[if test $ac_cv_header_sys_mman_h != yes \
|
||||
|| test $ac_cv_func_mmap != yes; then
|
||||
[
|
||||
AC_CHECK_HEADER([sys/mman.h],
|
||||
[libffi_header_sys_mman_h=yes], [libffi_header_sys_mman_h=no])
|
||||
AC_CHECK_FUNC([mmap], [libffi_func_mmap=yes], [libffi_func_mmap=no])
|
||||
if test "$libffi_header_sys_mman_h" != yes \
|
||||
|| test "$libffi_func_mmap" != yes; then
|
||||
ac_cv_func_mmap_file=no
|
||||
ac_cv_func_mmap_dev_zero=no
|
||||
ac_cv_func_mmap_anon=no
|
||||
|
|
|
|||
|
|
@ -4883,8 +4883,247 @@ _ACEOF
|
|||
fi
|
||||
done
|
||||
|
||||
if test $ac_cv_header_sys_mman_h != yes \
|
||||
|| test $ac_cv_func_mmap != yes; then
|
||||
|
||||
if test "${ac_cv_header_sys_mman_h+set}" = set; then
|
||||
echo "$as_me:$LINENO: checking for sys/mman.h" >&5
|
||||
echo $ECHO_N "checking for sys/mman.h... $ECHO_C" >&6
|
||||
if test "${ac_cv_header_sys_mman_h+set}" = set; then
|
||||
echo $ECHO_N "(cached) $ECHO_C" >&6
|
||||
fi
|
||||
echo "$as_me:$LINENO: result: $ac_cv_header_sys_mman_h" >&5
|
||||
echo "${ECHO_T}$ac_cv_header_sys_mman_h" >&6
|
||||
else
|
||||
# Is the header compilable?
|
||||
echo "$as_me:$LINENO: checking sys/mman.h usability" >&5
|
||||
echo $ECHO_N "checking sys/mman.h usability... $ECHO_C" >&6
|
||||
cat >conftest.$ac_ext <<_ACEOF
|
||||
/* confdefs.h. */
|
||||
_ACEOF
|
||||
cat confdefs.h >>conftest.$ac_ext
|
||||
cat >>conftest.$ac_ext <<_ACEOF
|
||||
/* end confdefs.h. */
|
||||
$ac_includes_default
|
||||
#include <sys/mman.h>
|
||||
_ACEOF
|
||||
rm -f conftest.$ac_objext
|
||||
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
|
||||
(eval $ac_compile) 2>conftest.er1
|
||||
ac_status=$?
|
||||
grep -v '^ *+' conftest.er1 >conftest.err
|
||||
rm -f conftest.er1
|
||||
cat conftest.err >&5
|
||||
echo "$as_me:$LINENO: \$? = $ac_status" >&5
|
||||
(exit $ac_status); } &&
|
||||
{ ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
|
||||
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
|
||||
(eval $ac_try) 2>&5
|
||||
ac_status=$?
|
||||
echo "$as_me:$LINENO: \$? = $ac_status" >&5
|
||||
(exit $ac_status); }; } &&
|
||||
{ ac_try='test -s conftest.$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 $ac_status); }; }; then
|
||||
ac_header_compiler=yes
|
||||
else
|
||||
echo "$as_me: failed program was:" >&5
|
||||
sed 's/^/| /' conftest.$ac_ext >&5
|
||||
|
||||
ac_header_compiler=no
|
||||
fi
|
||||
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
|
||||
echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
|
||||
echo "${ECHO_T}$ac_header_compiler" >&6
|
||||
|
||||
# Is the header present?
|
||||
echo "$as_me:$LINENO: checking sys/mman.h presence" >&5
|
||||
echo $ECHO_N "checking sys/mman.h presence... $ECHO_C" >&6
|
||||
cat >conftest.$ac_ext <<_ACEOF
|
||||
/* confdefs.h. */
|
||||
_ACEOF
|
||||
cat confdefs.h >>conftest.$ac_ext
|
||||
cat >>conftest.$ac_ext <<_ACEOF
|
||||
/* end confdefs.h. */
|
||||
#include <sys/mman.h>
|
||||
_ACEOF
|
||||
if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
|
||||
(eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
|
||||
ac_status=$?
|
||||
grep -v '^ *+' conftest.er1 >conftest.err
|
||||
rm -f conftest.er1
|
||||
cat conftest.err >&5
|
||||
echo "$as_me:$LINENO: \$? = $ac_status" >&5
|
||||
(exit $ac_status); } >/dev/null; then
|
||||
if test -s conftest.err; then
|
||||
ac_cpp_err=$ac_c_preproc_warn_flag
|
||||
ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
|
||||
else
|
||||
ac_cpp_err=
|
||||
fi
|
||||
else
|
||||
ac_cpp_err=yes
|
||||
fi
|
||||
if test -z "$ac_cpp_err"; then
|
||||
ac_header_preproc=yes
|
||||
else
|
||||
echo "$as_me: failed program was:" >&5
|
||||
sed 's/^/| /' conftest.$ac_ext >&5
|
||||
|
||||
ac_header_preproc=no
|
||||
fi
|
||||
rm -f conftest.err conftest.$ac_ext
|
||||
echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
|
||||
echo "${ECHO_T}$ac_header_preproc" >&6
|
||||
|
||||
# So? What about this header?
|
||||
case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
|
||||
yes:no: )
|
||||
{ echo "$as_me:$LINENO: WARNING: sys/mman.h: accepted by the compiler, rejected by the preprocessor!" >&5
|
||||
echo "$as_me: WARNING: sys/mman.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
|
||||
{ echo "$as_me:$LINENO: WARNING: sys/mman.h: proceeding with the compiler's result" >&5
|
||||
echo "$as_me: WARNING: sys/mman.h: proceeding with the compiler's result" >&2;}
|
||||
ac_header_preproc=yes
|
||||
;;
|
||||
no:yes:* )
|
||||
{ echo "$as_me:$LINENO: WARNING: sys/mman.h: present but cannot be compiled" >&5
|
||||
echo "$as_me: WARNING: sys/mman.h: present but cannot be compiled" >&2;}
|
||||
{ echo "$as_me:$LINENO: WARNING: sys/mman.h: check for missing prerequisite headers?" >&5
|
||||
echo "$as_me: WARNING: sys/mman.h: check for missing prerequisite headers?" >&2;}
|
||||
{ echo "$as_me:$LINENO: WARNING: sys/mman.h: see the Autoconf documentation" >&5
|
||||
echo "$as_me: WARNING: sys/mman.h: see the Autoconf documentation" >&2;}
|
||||
{ echo "$as_me:$LINENO: WARNING: sys/mman.h: section \"Present But Cannot Be Compiled\"" >&5
|
||||
echo "$as_me: WARNING: sys/mman.h: section \"Present But Cannot Be Compiled\"" >&2;}
|
||||
{ echo "$as_me:$LINENO: WARNING: sys/mman.h: proceeding with the preprocessor's result" >&5
|
||||
echo "$as_me: WARNING: sys/mman.h: proceeding with the preprocessor's result" >&2;}
|
||||
{ echo "$as_me:$LINENO: WARNING: sys/mman.h: in the future, the compiler will take precedence" >&5
|
||||
echo "$as_me: WARNING: sys/mman.h: in the future, the compiler will take precedence" >&2;}
|
||||
(
|
||||
cat <<\_ASBOX
|
||||
## ------------------------------------------- ##
|
||||
## Report this to http://gcc.gnu.org/bugs.html ##
|
||||
## ------------------------------------------- ##
|
||||
_ASBOX
|
||||
) |
|
||||
sed "s/^/$as_me: WARNING: /" >&2
|
||||
;;
|
||||
esac
|
||||
echo "$as_me:$LINENO: checking for sys/mman.h" >&5
|
||||
echo $ECHO_N "checking for sys/mman.h... $ECHO_C" >&6
|
||||
if test "${ac_cv_header_sys_mman_h+set}" = set; then
|
||||
echo $ECHO_N "(cached) $ECHO_C" >&6
|
||||
else
|
||||
ac_cv_header_sys_mman_h=$ac_header_preproc
|
||||
fi
|
||||
echo "$as_me:$LINENO: result: $ac_cv_header_sys_mman_h" >&5
|
||||
echo "${ECHO_T}$ac_cv_header_sys_mman_h" >&6
|
||||
|
||||
fi
|
||||
if test $ac_cv_header_sys_mman_h = yes; then
|
||||
libffi_header_sys_mman_h=yes
|
||||
else
|
||||
libffi_header_sys_mman_h=no
|
||||
fi
|
||||
|
||||
|
||||
echo "$as_me:$LINENO: checking for mmap" >&5
|
||||
echo $ECHO_N "checking for mmap... $ECHO_C" >&6
|
||||
if test "${ac_cv_func_mmap+set}" = set; then
|
||||
echo $ECHO_N "(cached) $ECHO_C" >&6
|
||||
else
|
||||
cat >conftest.$ac_ext <<_ACEOF
|
||||
/* confdefs.h. */
|
||||
_ACEOF
|
||||
cat confdefs.h >>conftest.$ac_ext
|
||||
cat >>conftest.$ac_ext <<_ACEOF
|
||||
/* end confdefs.h. */
|
||||
/* Define mmap to an innocuous variant, in case <limits.h> declares mmap.
|
||||
For example, HP-UX 11i <limits.h> declares gettimeofday. */
|
||||
#define mmap innocuous_mmap
|
||||
|
||||
/* System header to define __stub macros and hopefully few prototypes,
|
||||
which can conflict with char mmap (); below.
|
||||
Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
|
||||
<limits.h> exists even on freestanding compilers. */
|
||||
|
||||
#ifdef __STDC__
|
||||
# include <limits.h>
|
||||
#else
|
||||
# include <assert.h>
|
||||
#endif
|
||||
|
||||
#undef mmap
|
||||
|
||||
/* Override any gcc2 internal prototype to avoid an error. */
|
||||
#ifdef __cplusplus
|
||||
extern "C"
|
||||
{
|
||||
#endif
|
||||
/* We use char because int might match the return type of a gcc2
|
||||
builtin and then its argument prototype would still apply. */
|
||||
char mmap ();
|
||||
/* The GNU C library defines this for functions which it implements
|
||||
to always fail with ENOSYS. Some functions are actually named
|
||||
something starting with __ and the normal name is an alias. */
|
||||
#if defined (__stub_mmap) || defined (__stub___mmap)
|
||||
choke me
|
||||
#else
|
||||
char (*f) () = mmap;
|
||||
#endif
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
int
|
||||
main ()
|
||||
{
|
||||
return f != mmap;
|
||||
;
|
||||
return 0;
|
||||
}
|
||||
_ACEOF
|
||||
rm -f conftest.$ac_objext conftest$ac_exeext
|
||||
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
|
||||
(eval $ac_link) 2>conftest.er1
|
||||
ac_status=$?
|
||||
grep -v '^ *+' conftest.er1 >conftest.err
|
||||
rm -f conftest.er1
|
||||
cat conftest.err >&5
|
||||
echo "$as_me:$LINENO: \$? = $ac_status" >&5
|
||||
(exit $ac_status); } &&
|
||||
{ ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
|
||||
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
|
||||
(eval $ac_try) 2>&5
|
||||
ac_status=$?
|
||||
echo "$as_me:$LINENO: \$? = $ac_status" >&5
|
||||
(exit $ac_status); }; } &&
|
||||
{ ac_try='test -s conftest$ac_exeext'
|
||||
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
|
||||
(eval $ac_try) 2>&5
|
||||
ac_status=$?
|
||||
echo "$as_me:$LINENO: \$? = $ac_status" >&5
|
||||
(exit $ac_status); }; }; then
|
||||
ac_cv_func_mmap=yes
|
||||
else
|
||||
echo "$as_me: failed program was:" >&5
|
||||
sed 's/^/| /' conftest.$ac_ext >&5
|
||||
|
||||
ac_cv_func_mmap=no
|
||||
fi
|
||||
rm -f conftest.err conftest.$ac_objext \
|
||||
conftest$ac_exeext conftest.$ac_ext
|
||||
fi
|
||||
echo "$as_me:$LINENO: result: $ac_cv_func_mmap" >&5
|
||||
echo "${ECHO_T}$ac_cv_func_mmap" >&6
|
||||
if test $ac_cv_func_mmap = yes; then
|
||||
libffi_func_mmap=yes
|
||||
else
|
||||
libffi_func_mmap=no
|
||||
fi
|
||||
|
||||
if test "$libffi_header_sys_mman_h" != yes \
|
||||
|| test "$libffi_func_mmap" != yes; then
|
||||
ac_cv_func_mmap_file=no
|
||||
ac_cv_func_mmap_dev_zero=no
|
||||
ac_cv_func_mmap_anon=no
|
||||
|
|
|
|||
Loading…
Reference in New Issue