diff options
Diffstat (limited to 'm4/dup2.m4')
-rw-r--r-- | m4/dup2.m4 | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/m4/dup2.m4 b/m4/dup2.m4 new file mode 100644 index 000000000..727366946 --- /dev/null +++ b/m4/dup2.m4 @@ -0,0 +1,21 @@ +# dup2.m4 serial 1 +dnl Copyright (C) 2002 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. + +AC_DEFUN([gl_FUNC_DUP2], +[ + AC_REPLACE_FUNCS(dup2) + if test $ac_cv_func_dup2 = no; then + gl_PREREQ_DUP2 + fi +]) + +# Prerequisites of lib/dup2.c. +AC_DEFUN([gl_PREREQ_DUP2], [ + AC_CHECK_HEADERS_ONCE(fcntl.h unistd.h) +]) + |