diff options
Diffstat (limited to 'gl/m4/fcntl-o.m4')
| -rw-r--r-- | gl/m4/fcntl-o.m4 | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/gl/m4/fcntl-o.m4 b/gl/m4/fcntl-o.m4 index d416a61c..1adacc8a 100644 --- a/gl/m4/fcntl-o.m4 +++ b/gl/m4/fcntl-o.m4 @@ -1,4 +1,4 @@ -# fcntl-o.m4 serial 1 +# fcntl-o.m4 serial 2 dnl Copyright (C) 2006, 2009-2010 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -12,7 +12,11 @@ dnl Written by Paul Eggert. AC_DEFUN([gl_FCNTL_O_FLAGS], [ dnl Persuade glibc <fcntl.h> to define O_NOATIME and O_NOFOLLOW. - AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + dnl AC_USE_SYSTEM_EXTENSIONS was introduced in autoconf 2.60 and obsoletes + dnl AC_GNU_SOURCE. + m4_ifdef([AC_USE_SYSTEM_EXTENSIONS], + [AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])], + [AC_REQUIRE([AC_GNU_SOURCE])]) AC_CACHE_CHECK([for working fcntl.h], [gl_cv_header_working_fcntl_h], [AC_RUN_IFELSE( [AC_LANG_PROGRAM( |