(AC_SYS_LARGEFILE_FLAGS): Work around a

problem with the QNX 4.25 shell, which doesn't propagate exit
status of failed commands inside shell assignments.

diff --git a/m4/largefile.m4 b/m4/largefile.m4
index c345a3f..b24c064 100644 (file)
--- a/m4/largefile.m4
+++ b/m4/largefile.m4
@@ -1,4 +1,4 @@
-#serial 6
+#serial 7
 
 dnl By default, many hosts won't let programs access large files;
 dnl one must use special compiler options to get large-file access to work.
@@ -12,7 +12,10 @@ dnl AC_SYS_LARGEFILE_FLAGS(FLAGSNAME)
 AC_DEFUN(AC_SYS_LARGEFILE_FLAGS,
   [AC_CACHE_CHECK([for $1 value to request large file support],
      ac_cv_sys_largefile_$1,
-     [ac_cv_sys_largefile_$1=`($GETCONF LFS_$1) 2>/dev/null` || {
+     [if ($GETCONF LFS_$1) >conftest.1 2>conftest.2 && test ! -s conftest.2
+      then
+        ac_cv_sys_largefile_$1=`cat conftest.1`
+      else
        ac_cv_sys_largefile_$1=no
        ifelse($1, CFLAGS,
          [case "$host_os" in
@@ -38,7 +41,8 @@ changequote([, ])dnl
             AC_TRY_LINK(, , , ac_cv_sys_largefile_CFLAGS=no)
             CC="$ac_save_CC"
           fi])
-      }])])
+      fi
+      rm -f conftest*])])
 
 dnl Internal subroutine of AC_SYS_LARGEFILE.
 dnl AC_SYS_LARGEFILE_SPACE_APPEND(VAR, VAL)