diff options
Diffstat (limited to 'gnulib/m4/dup3.m4')
| m--------- | gnulib | 0 | ||||
| -rw-r--r-- | gnulib/m4/dup3.m4 | 30 |
2 files changed, 30 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/m4/dup3.m4 b/gnulib/m4/dup3.m4 new file mode 100644 index 0000000..6406312 --- /dev/null +++ b/gnulib/m4/dup3.m4 @@ -0,0 +1,30 @@ +# dup3.m4 serial 4 +dnl Copyright (C) 2009-2011 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_DUP3], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + + dnl Persuade glibc <unistd.h> to declare dup3(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_CHECK_FUNCS_ONCE([dup3]) + if test $ac_cv_func_dup3 != yes; then + HAVE_DUP3=0 + fi + +dnl Not needed yet, because dup3 is unconditionally replaced. +dnl dnl Replace dup3() for supporting the gnulib-defined fchdir() function, +dnl dnl to keep fchdir's bookkeeping up-to-date. +dnl m4_ifdef([gl_FUNC_FCHDIR], [ +dnl gl_TEST_FCHDIR +dnl if test $HAVE_FCHDIR = 0; then +dnl if test $HAVE_DUP3 = 1; then +dnl REPLACE_DUP3=1 +dnl fi +dnl fi +dnl ]) +]) |