+ AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([gl_STDIN_LARGE_OFFSET])
+
+ dnl Persuade glibc <stdio.h> to declare fseeko().
+ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+ AC_CACHE_CHECK([for fseeko], [gl_cv_func_fseeko],
+ [
+ AC_TRY_LINK([#include <stdio.h>], [fseeko (stdin, 0, 0);],
+ [gl_cv_func_fseeko=yes], [gl_cv_func_fseeko=no])
+ ])