Backport fixed AC_FUNC_FSEEKO

config/c-library.m4

@@ -1,5 +1,5 @@
 # Macros that test various C library quirks
-# $PostgreSQL: pgsql/config/c-library.m4,v 1.31 2005/02/24 01:34:45 tgl Exp $
+# $PostgreSQL: pgsql/config/c-library.m4,v 1.32 2008/02/19 18:02:30 petere Exp $
 
 
 # PGAC_VAR_INT_TIMEZONE
@@ -297,3 +297,29 @@ int main()
 ])dnl AC_CACHE_VAL
 AC_MSG_RESULT([$pgac_cv_printf_arg_control])
 ])# PGAC_FUNC_PRINTF_ARG_CONTROL
+
+
+# backport from Autoconf 2.61a
+# http://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commitdiff;h=f0c325537a22105536ac8c4e88656e50f9946486
+
+# AC_FUNC_FSEEKO
+# --------------
+AN_FUNCTION([ftello], [AC_FUNC_FSEEKO])
+AN_FUNCTION([fseeko], [AC_FUNC_FSEEKO])
+AC_DEFUN([AC_FUNC_FSEEKO],
+[_AC_SYS_LARGEFILE_MACRO_VALUE(_LARGEFILE_SOURCE, 1,
+   [ac_cv_sys_largefile_source],
+   [Define to 1 to make fseeko visible on some hosts (e.g. glibc 2.2).],
+   [[#include <sys/types.h> /* for off_t */
+     #include <stdio.h>]],
+   [[int (*fp) (FILE *, off_t, int) = fseeko;
+     return fseeko (stdin, 0, 0) && fp (stdin, 0, 0);]])
+
+# 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.
+if test $ac_cv_sys_largefile_source != unknown; then
+  AC_DEFINE(HAVE_FSEEKO, 1,
+    [Define to 1 if fseeko (and presumably ftello) exists and is declared.])
+fi
+])# AC_FUNC_FSEEKO

configure

@@ -18051,11 +18051,13 @@ _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-#include <stdio.h>
+#include <sys/types.h> /* for off_t */
+     #include <stdio.h>
 int
 main ()
 {
-return fseeko (stdin, 0, 0) && (fseeko) (stdin, 0, 0);
+int (*fp) (FILE *, off_t, int) = fseeko;
+     return fseeko (stdin, 0, 0) && fp (stdin, 0, 0);
   ;
   return 0;
 }
@@ -18095,11 +18097,13 @@ cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
 #define _LARGEFILE_SOURCE 1
-#include <stdio.h>
+#include <sys/types.h> /* for off_t */
+     #include <stdio.h>
 int
 main ()
 {
-return fseeko (stdin, 0, 0) && (fseeko) (stdin, 0, 0);
+int (*fp) (FILE *, off_t, int) = fseeko;
+     return fseeko (stdin, 0, 0) && fp (stdin, 0, 0);
   ;
   return 0;
 }