Adjust strtod detection to catch glibc 2.7 bug.

[gnulib.git] / m4 / stdio_h.m4

diff --git a/m4/stdio_h.m4 b/m4/stdio_h.m4
index 721c826..fa262e3 100644 (file)
--- a/m4/stdio_h.m4
+++ b/m4/stdio_h.m4
@@ -1,5 +1,5 @@
-# stdio_h.m4 serial 7
-dnl Copyright (C) 2007 Free Software Foundation, Inc.
+# stdio_h.m4 serial 10
+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.
@@ -28,11 +28,15 @@ AC_DEFUN([gl_STDIO_H_DEFAULTS],
   GNULIB_VSNPRINTF=0;      AC_SUBST([GNULIB_VSNPRINTF])
   GNULIB_VSPRINTF_POSIX=0; AC_SUBST([GNULIB_VSPRINTF_POSIX])
   GNULIB_VASPRINTF=0;      AC_SUBST([GNULIB_VASPRINTF])
+  GNULIB_FOPEN=0;          AC_SUBST([GNULIB_FOPEN])
+  GNULIB_FREOPEN=0;        AC_SUBST([GNULIB_FREOPEN])
   GNULIB_FSEEK=0;          AC_SUBST([GNULIB_FSEEK])
   GNULIB_FSEEKO=0;         AC_SUBST([GNULIB_FSEEKO])
   GNULIB_FTELL=0;          AC_SUBST([GNULIB_FTELL])
   GNULIB_FTELLO=0;         AC_SUBST([GNULIB_FTELLO])
   GNULIB_FFLUSH=0;         AC_SUBST([GNULIB_FFLUSH])
+  GNULIB_GETDELIM=0;       AC_SUBST([GNULIB_GETDELIM])
+  GNULIB_GETLINE=0;        AC_SUBST([GNULIB_GETLINE])
   dnl Assume proper GNU behavior unless another module says otherwise.
   REPLACE_FPRINTF=0;       AC_SUBST([REPLACE_FPRINTF])
   REPLACE_VFPRINTF=0;      AC_SUBST([REPLACE_VFPRINTF])
@@ -46,6 +50,8 @@ AC_DEFUN([gl_STDIO_H_DEFAULTS],
   REPLACE_VSPRINTF=0;      AC_SUBST([REPLACE_VSPRINTF])
   HAVE_VASPRINTF=1;        AC_SUBST([HAVE_VASPRINTF])
   REPLACE_VASPRINTF=0;     AC_SUBST([REPLACE_VASPRINTF])
+  REPLACE_FOPEN=0;         AC_SUBST([REPLACE_FOPEN])
+  REPLACE_FREOPEN=0;       AC_SUBST([REPLACE_FREOPEN])
   HAVE_FSEEKO=1;           AC_SUBST([HAVE_FSEEKO])
   REPLACE_FSEEKO=0;        AC_SUBST([REPLACE_FSEEKO])
   REPLACE_FSEEK=0;         AC_SUBST([REPLACE_FSEEK])
@@ -53,6 +59,9 @@ AC_DEFUN([gl_STDIO_H_DEFAULTS],
   REPLACE_FTELLO=0;        AC_SUBST([REPLACE_FTELLO])
   REPLACE_FTELL=0;         AC_SUBST([REPLACE_FTELL])
   REPLACE_FFLUSH=0;        AC_SUBST([REPLACE_FFLUSH])
+  HAVE_DECL_GETDELIM=1;    AC_SUBST([HAVE_DECL_GETDELIM])
+  HAVE_DECL_GETLINE=1;     AC_SUBST([HAVE_DECL_GETLINE])
+  REPLACE_GETLINE=0;       AC_SUBST([REPLACE_GETLINE])
 ])
 
 dnl Code shared by fseeko and ftello.  Determine if large files are supported,
@@ -61,17 +70,16 @@ AC_DEFUN([gl_STDIN_LARGE_OFFSET],
   [
     AC_CACHE_CHECK([whether stdin defaults to large file offsets],
       [gl_cv_var_stdin_large_offset],
-      [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <stdio.h>],
-[#if defined __SL64 && defined __SCLE /* cygwin */
+      [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdio.h>]],
+[[#if defined __SL64 && defined __SCLE /* cygwin */
   /* Cygwin 1.5.24 and earlier fail to put stdin in 64-bit mode, making
-     fseeko/ftello needlessly fail.  This bug was fixed at the same time
-     that cygwin started exporting asnprintf (cygwin 1.7.0), so we use
-     that as a link-time test for cross-compiles rather than building
-     a runtime test.  */
-  size_t s;
-  if (asnprintf (NULL, &s, ""))
-    return 0;
-#endif])],
+     fseeko/ftello needlessly fail.  This bug was fixed in 1.5.25, and
+     it is easier to do a version check than building a runtime test.  */
+# include <cygwin/version.h>
+# if CYGWIN_VERSION_DLL_COMBINED < CYGWIN_VERSION_DLL_MAKE_COMBINED (1005, 25)
+  choke me
+# endif
+#endif]])],
        [gl_cv_var_stdin_large_offset=yes],
        [gl_cv_var_stdin_large_offset=no])])
 ])