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-rw-r--r--gnulib-m4/dup2.m435
1 files changed, 0 insertions, 35 deletions
diff --git a/gnulib-m4/dup2.m4 b/gnulib-m4/dup2.m4
deleted file mode 100644
index 2abc74cd..00000000
--- a/gnulib-m4/dup2.m4
+++ /dev/null
@@ -1,35 +0,0 @@
-#serial 6
-dnl Copyright (C) 2002, 2005, 2007, 2009 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_DUP2],
-[
- AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
- AC_REQUIRE([AC_CANONICAL_HOST])
- AC_CHECK_FUNCS_ONCE([dup2])
- if test $ac_cv_func_dup2 = no; then
- HAVE_DUP2=0
- AC_LIBOBJ([dup2])
- else
- AC_CACHE_CHECK([whether dup2 works], [gl_cv_func_dup2_works],
- [AC_RUN_IFELSE([AC_LANG_PROGRAM([[
-#include <unistd.h>
-]], [return 1 - dup2 (1, 1);])],
- [gl_cv_func_dup2_works=yes], [gl_cv_func_dup2_works=no],
- [case "$host_os" in
- mingw*) # on this platform, dup2 always returns 0 for success
- gl_cv_func_dup2_works=no;;
- cygwin*) # on cygwin 1.5.x, dup2(1,1) returns 0
- gl_cv_func_dup2_works=no;;
- *) gl_cv_func_dup2_works=yes;;
- esac])])
- if test "$gl_cv_func_dup2_works" = no; then
- REPLACE_DUP2=1
- AC_LIBOBJ([dup2])
- fi
- fi
- AC_DEFINE_UNQUOTED([REPLACE_DUP2], [$REPLACE_DUP2],
- [Define to 1 if dup2 returns 0 instead of the target fd.])
-])