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-rw-r--r--aclocal.m443
1 files changed, 27 insertions, 16 deletions
diff --git a/aclocal.m4 b/aclocal.m4
index 0800cbbddd4..efc738729b4 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -301,14 +301,11 @@ dnl AC_SYS_LARGEFILE_MACRO_VALUE(C-MACRO, VALUE, CACHE-VAR, COMMENT, INCLUDES, F
AC_DEFUN(AC_SYS_LARGEFILE_MACRO_VALUE,
[AC_CACHE_CHECK([for $1 value needed for large files], $3,
[$3=no
- AC_TRY_COMPILE(AC_SYS_LARGEFILE_TEST_INCLUDES
-$5
- ,
+ AC_TRY_COMPILE([$5],
[$6],
,
[AC_TRY_COMPILE([#define $1 $2]
-AC_SYS_LARGEFILE_TEST_INCLUDES
-$5
+[$5]
,
[$6],
[$3=$2])])])
@@ -317,7 +314,8 @@ $5
fi])
AC_DEFUN(AC_SYS_LARGEFILE,
- [AC_ARG_ENABLE(largefile,
+ [AC_REQUIRE([AC_PROG_CC])
+ AC_ARG_ENABLE(largefile,
[ --disable-largefile omit support for large files])
if test "$enable_largefile" != no; then
@@ -340,21 +338,34 @@ AC_DEFUN(AC_SYS_LARGEFILE,
AC_SYS_LARGEFILE_MACRO_VALUE(_FILE_OFFSET_BITS, 64,
ac_cv_sys_file_offset_bits,
- [Number of bits in a file offset, on hosts where this is settable.])
- AC_SYS_LARGEFILE_MACRO_VALUE(_LARGEFILE_SOURCE, 1,
- ac_cv_sys_largefile_source,
- [Define to make ftello visible on some hosts (e.g. HP-UX 10.20).],
- [#include <stdio.h>], [return !ftello;])
+ [Number of bits in a file offset, on hosts where this is settable.],
+ AC_SYS_LARGEFILE_TEST_INCLUDES)
AC_SYS_LARGEFILE_MACRO_VALUE(_LARGE_FILES, 1,
ac_cv_sys_large_files,
- [Define for large files, on AIX-style hosts.])
- AC_SYS_LARGEFILE_MACRO_VALUE(_XOPEN_SOURCE, 500,
- ac_cv_sys_xopen_source,
- [Define to make ftello visible on some hosts (e.g. glibc 2.1.3).],
- [#include <stdio.h>], [return !ftello;])
+ [Define for large files, on AIX-style hosts.]
+ AC_SYS_LARGEFILE_TEST_INCLUDES)
fi
])
+AC_DEFUN(AC_FUNC_FSEEKO,
+ [AC_SYS_LARGEFILE_MACRO_VALUE(_LARGEFILE_SOURCE, 1,
+ ac_cv_sys_largefile_source,
+ [Define to make fseeko visible on some hosts (e.g. glibc 2.2).],
+ [#include <stdio.h>], [return !fseeko;])
+ # We used to try defining _XOPEN_SOURCE=500 too, to work around a bug
+ # in glibc 2.1.3, but that breaks too many other things.
+ # If you want fseeko and ftello with glibc, upgrade to a fixed glibc.
+
+ AC_CACHE_CHECK([for fseeko], ac_cv_func_fseeko,
+ [ac_cv_func_fseeko=no
+ AC_TRY_LINK([#include <stdio.h>],
+ [return fseeko && fseeko (stdin, 0, 0);],
+ [ac_cv_func_fseeko=yes])])
+ if test $ac_cv_func_fseeko != no; then
+ AC_DEFINE(HAVE_FSEEKO, 1,
+ [Define if fseeko (and presumably ftello) exists and is declared.])
+ fi])
+
undefine([AC_FUNC_MMAP])dnl
dnl The autoconf 2.13 version loses on OSF, at least,
dnl by messing up the declaration of malloc.