handle_recursive: fix race condition if threads are used

[coloredstderr/coloredstderr.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index ef95ae95025c420b98cb2d2a13e45e43f87bdb55..6ef50f4c04c4f9bed0be53bf99bba3d779482176 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-dnl Copyright (C) 2013  Simon Ruderich
+dnl Copyright (C) 2013-2014  Simon Ruderich
 dnl
 dnl This program is free software: you can redistribute it and/or modify
 dnl it under the terms of the GNU General Public License as published by
@@ -46,6 +46,7 @@ AC_TYPE_SSIZE_T
 
 AC_C_INLINE
 AX_C___ATTRIBUTE__
+AX_TLS
 
 AC_CHECK_MEMBER([struct _IO_FILE._fileno],
                 [AC_DEFINE([HAVE_STRUCT__IO_FILE__FILENO], 1,
@@ -59,7 +60,7 @@ AC_CHECK_FUNCS([execvpe])
 dnl These are not in POSIX.
 AC_CHECK_FUNCS([fwrite_unlocked fputs_unlocked fputc_unlocked])
 dnl Internal functions in libc implementations which must be hooked.
-AC_CHECK_FUNCS([__overflow])
+AC_CHECK_FUNCS([__overflow __swbuf])
 
 dnl Thanks to gperftools' configure.ac (https://code.google.com/p/gperftools).
 AC_MSG_CHECKING([for __builtin_expect])