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configure.ac: Simplify the mmap check a bit more. 

2006-05-01  Andreas Tobler  <a.tobler@schweiz.ch>

	* configure.ac: Simplify the mmap check a bit more.
	* configure: Rebuilt.
	* include/config.h.in: Likewise.

From-SVN: r113426
This commit is contained in:
Andreas Tobler 2006-05-01 22:02:27 +02:00 committed by Andreas Tobler
parent 763f45275b
commit a5dfac10a2
4 changed files with 10 additions and 107 deletions
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6
libjava/ChangeLog
View File

@ -1,3 +1,9 @@
2006-05-01 Andreas Tobler <a.tobler@schweiz.ch>
* configure.ac: Simplify the mmap check a bit more.
* configure: Rebuilt.
* include/config.h.in: Likewise.
2006-05-01 Roger Sayle <roger@eyesopen.com>
Andrew Haley <aph@redhat.com>

81
libjava/configure vendored
View File

@ -9425,6 +9425,7 @@ else
for ac_func in strerror ioctl select fstat open fsync sleep opendir \
@ -9432,7 +9433,7 @@ for ac_func in strerror ioctl select fstat open fsync sleep opendir \
access stat mkdir rename rmdir unlink realpath utime chmod \
nl_langinfo setlocale \
inet_pton uname inet_ntoa \
fork execvp pipe sigaction ftruncate
fork execvp pipe sigaction ftruncate mmap
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
@ -16410,84 +16411,6 @@ _ACEOF
fi
# AC_FUNC_MMAP goes to far and checks for mmap fixed, we do only need mmap
# at a mmap selected address. See
# gnu/java/nio/channels/natFileChannelPosix.cc
echo "$as_me:$LINENO: checking for mmap" >&5
echo $ECHO_N "checking for mmap... $ECHO_C" >&6
if test "${ac_cv_func_mmap_ok+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
if test x$gcc_no_link = xyes; then
{ { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
{ (exit 1); exit 1; }; }
fi
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
#include <unistd.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <fcntl.h>
int
main ()
{
mmap((void *)0, 0, PROT_READ, 0, 0, 0);
;
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 $ac_status); }; }; then
ac_cv_func_mmap_ok=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
ac_cv_func_mmap_ok=no
fi
rm -f conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_func_mmap_ok" >&5
echo "${ECHO_T}$ac_cv_func_mmap_ok" >&6
if test $ac_cv_func_mmap_ok = yes
then
cat >>confdefs.h <<\_ACEOF
#define HAVE_MMAP 1
_ACEOF
fi
for ac_prog in perl
do
# Extract the first word of "$ac_prog", so it can be a program name with args.

27
libjava/configure.ac
View File

@ -895,7 +895,7 @@ else
access stat mkdir rename rmdir unlink realpath utime chmod \
nl_langinfo setlocale \
inet_pton uname inet_ntoa \
fork execvp pipe sigaction ftruncate])
fork execvp pipe sigaction ftruncate mmap])
AC_CHECK_FUNCS(inet_aton inet_addr, break)
AC_CHECK_HEADERS(execinfo.h unistd.h dlfcn.h)
# Do an additional check on dld, HP-UX for example has dladdr in libdld.sl
@ -1352,31 +1352,6 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <time.h>]], [[struct tm tim; tim.t
AC_FUNC_ALLOCA
dnl Check for mmap()
# AC_FUNC_MMAP goes to far and checks for mmap fixed, we do only need mmap
# at a mmap selected address. See
# gnu/java/nio/channels/natFileChannelPosix.cc
AC_MSG_CHECKING([for mmap])
AC_CACHE_VAL(ac_cv_func_mmap_ok,
[AC_TRY_LINK(
changequote(<<, >>)dnl
<<
#include <unistd.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <fcntl.h>
>>,
changequote([, ])dnl
[mmap((void *)0, 0, PROT_READ, 0, 0, 0);],
ac_cv_func_mmap_ok=yes,
ac_cv_func_mmap_ok=no)] )
AC_MSG_RESULT($ac_cv_func_mmap_ok)
if test $ac_cv_func_mmap_ok = yes
then
AC_DEFINE(HAVE_MMAP, 1, [ Define to 1 if you have a working `mmap' system call w/o fixed address ability.])
fi
AC_CHECK_PROGS(PERL, perl, false)
SYSDEP_SOURCES=

3
libjava/include/config.h.in
View File

@ -184,8 +184,7 @@
/* Define is you have 'mktime' in <time.h> */
#undef HAVE_MKTIME
/* Define to 1 if you have a working `mmap' system call w/o fixed address
ability. */
/* Define to 1 if you have the `mmap' function. */
#undef HAVE_MMAP
/* Define to 1 if you have the <netdb.h> header file. */