[gfortran] add 64 bit off_t for linux/i686 (and maybe some others)

[Bud Davis]

Patch checks for LFS support and if available, uses it.

No additional test suite failures.  Tested i686/gnu/linux.




--bud

2004-07-04  Bud Davis  <bdavis9659@comcast.net>

	* configure.ac: Add check for LFS support. 
	* configure: Regenerate

	
	




Index: gcc/libgfortran/configure.ac
===================================================================
RCS file: /cvs/gcc/gcc/libgfortran/configure.ac,v
retrieving revision 1.5
diff -c -3 -p -r1.5 configure.ac
*** gcc/libgfortran/configure.ac	4 Jul 2004 09:06:54 -0000	1.5
--- gcc/libgfortran/configure.ac	4 Jul 2004 19:33:29 -0000
*************** AC_CHECK_LIB([m],[roundf],[AC_DEFINE([HA
*** 166,171 ****
--- 166,178 ----
  AC_CHECK_LIB([m],[nextafter],[AC_DEFINE([HAVE_NEXTAFTER],[1],[libm includes nextafter])])
  AC_CHECK_LIB([m],[nextafterf],[AC_DEFINE([HAVE_NEXTAFTERF],[1],[libm includes nextafterf])])
  
+ # Check for LFS support
+ AC_TRY_LINK(
+       [#include <unistd.h>],
+       [fopen64("t", "w");
+       lseek64(1, 0, SEEK_CUR);],
+       [AC_DEFINE([_FILE_OFFSET_BITS],[64],["Define to 64 if LFS is supported"] )])
+ 
  # Let the user override this
  AC_ARG_ENABLE(cmath,
  	AC_HELP_STRING([--enable-cmath],[Include complex math functions]),