renamed from gettext.m4

[gnulib.git] / m4 / largefile.m4

diff --git a/m4/largefile.m4 b/m4/largefile.m4
index 32d27cc..bf3b965 100644 (file)
--- a/m4/largefile.m4
+++ b/m4/largefile.m4
@@ -1,4 +1,4 @@
-#serial 8
+#serial 11
 
 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.
@@ -25,10 +25,14 @@ AC_DEFUN(AC_SYS_LARGEFILE_FLAGS,
               ac_cv_sys_largefile_CFLAGS=-D__STDC_EXT__
             fi
             ;;
-          # IRIX 6.2 and later require cc -n32.
+          # IRIX 6.2 and later do not support large files by default,
+          # so use the -n32 ABI unless the installer said otherwise.
 [         irix6.[2-9]* | irix6.1[0-9]* | irix[7-9].* | irix[1-9][0-9]*)]
             if test "$GCC" != yes; then
-              ac_cv_sys_largefile_CFLAGS=-n32
+              case "$CC $CFLAGS " in
+              *' -o32 '*|*' -n32 '*|*' -64 '*) ;;
+              *) ac_cv_sys_largefile_CFLAGS=-n32 ;;
+              esac
             fi
           esac
           if test "$ac_cv_sys_largefile_CFLAGS" != no; then
@@ -105,12 +109,11 @@ AC_DEFUN(AC_SYS_LARGEFILE,
        esac])
      AC_SYS_LARGEFILE_MACRO_VALUE(_LARGEFILE_SOURCE,
        ac_cv_sys_largefile_source,
-       [Define to make fseeko etc. visible, on some hosts.],
-       [case "$host_os" in
-       # HP-UX 10.20 and later
-[      hpux10.[2-9][0-9]* | hpux1[1-9]* | hpux[2-9][0-9]*)]
-         ac_cv_sys_largefile_source=1 ;;
-       esac])
+       [Define to make ftello visible on some hosts (e.g. HP-UX 10.20).],
+       [AC_TRY_COMPILE([#include <stdio.h>], [return !ftello;], ,
+         [AC_TRY_COMPILE([#define _LARGEFILE_SOURCE 1
+#include <stdio.h>], [return !ftello;],
+            ac_cv_sys_largefile_source=1)])])
      AC_SYS_LARGEFILE_MACRO_VALUE(_LARGE_FILES,
        ac_cv_sys_large_files,
        [Define for large files, on AIX-style hosts.],
@@ -119,5 +122,13 @@ AC_DEFUN(AC_SYS_LARGEFILE,
 [      aix4.[2-9]* | aix4.1[0-9]* | aix[5-9].* | aix[1-9][0-9]*)]
          ac_cv_sys_large_files=1 ;;
        esac])
+     AC_SYS_LARGEFILE_MACRO_VALUE(_XOPEN_SOURCE,
+       ac_cv_sys_xopen_source,
+       [Define to make ftello visible on some hosts (e.g. glibc 2.1.3).],
+       [AC_TRY_COMPILE([#include <stdio.h>], [return !ftello;], ,
+         [AC_TRY_COMPILE([#define _XOPEN_SOURCE 500
+#include <stdio.h>],
+            [return !ftello;],
+            ac_cv_sys_xopen_source=500)])])
    fi
   ])