X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=m4%2Fftello.m4;fp=m4%2Fftello.m4;h=51308ef53bcea2f3e418ef2e69c02d934e374787;hb=c7e61475680fa226bd9b8bdd469cd66914e630f5;hp=0000000000000000000000000000000000000000;hpb=800deb09b422a73c1212233a93839a223ff59678;p=debian%2Fgzip

diff --git a/m4/ftello.m4 b/m4/ftello.m4
new file mode 100644
index 0000000..51308ef
--- /dev/null
+++ b/m4/ftello.m4
@@ -0,0 +1,34 @@
+# ftello.m4 serial 4
+dnl Copyright (C) 2007, 2008 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_FTELLO],
+[
+  AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+  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 ftello], [gl_cv_func_ftello],
+    [
+      AC_TRY_LINK([#include <stdio.h>], [ftello (stdin);],
+	[gl_cv_func_ftello=yes], [gl_cv_func_ftello=no])
+    ])
+  if test $gl_cv_func_ftello = no; then
+    HAVE_FTELLO=0
+    gl_REPLACE_FTELLO
+  elif test $gl_cv_var_stdin_large_offset = no; then
+    gl_REPLACE_FTELLO
+  fi
+])
+
+AC_DEFUN([gl_REPLACE_FTELLO],
+[
+  AC_LIBOBJ([ftello])
+  AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+  REPLACE_FTELLO=1
+])