striker 02/05/01 13:44:58
Modified: . configure.in
Log:
And restore it again...
Revision Changes Path
1.444 +32 -1 apr/configure.in
Index: configure.in
===================================================================
RCS file: /home/cvs/apr/configure.in,v
retrieving revision 1.443
retrieving revision 1.444
diff -u -r1.443 -r1.444
--- configure.in 1 May 2002 20:43:13 -0000 1.443
+++ configure.in 1 May 2002 20:44:58 -0000 1.444
@@ -595,6 +595,38 @@
AC_CHECK_FUNCS(create_area)
AC_CHECK_HEADERS(os2.h)
+dnl Not all systems can mmap /dev/zero (such as HP-UX). Check for that.
+if test "$ac_cv_func_mmap" = "yes" &&
+ test "$ac_cv_file__dev_zero" = "yes"; then
+ AC_MSG_CHECKING(for mmap that can map /dev/zero)
+ AC_TRY_RUN([
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#ifdef HAVE_SYS_MMAN_H
+#include <sys/mman.h>
+#endif
+ int main()
+ {
+ int fd;
+ void *m;
+ fd = open("/dev/zero", O_RDWR);
+ if (fd < 0) {
+ return 1;
+ }
+ m = mmap(0, sizeof(void*), PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
+ if (m < 0) { /* aka MAP_FAILED */
+ return 2;
+ }
+ if (munmap(m, sizeof(void*)) < 0) {
+ return 3;
+ }
+ return 0;
+ }], [], [ac_cv_file__dev_zero=no], [ac_cv_file__dev_zero=no])
+
+ AC_MSG_RESULT($ac_cv_file__dev_zero)
+fi
+
dnl Now we determine which one is our anonymous shmem preference.
haveshmgetanon="0"
havemmapzero="0"
@@ -1249,7 +1281,6 @@
echo $ac_n "${nl}Checking for Locking...${nl}"
AC_CHECK_FUNCS(semget semctl flock)
-APR_CHECK_FILE(/dev/zero)
AC_CHECK_HEADERS(semaphore.h)
AC_CHECK_FUNCS(sem_close sem_unlink sem_post sem_wait)
