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Diffstat (limited to 'm4/opendir.m4')
| -rw-r--r-- | m4/opendir.m4 | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/m4/opendir.m4 b/m4/opendir.m4 new file mode 100644 index 0000000..fd3c1ec --- /dev/null +++ b/m4/opendir.m4 @@ -0,0 +1,32 @@ +# opendir.m4 serial 5 +dnl Copyright (C) 2011-2020 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_OPENDIR], +[ + AC_REQUIRE([gl_DIRENT_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + + AC_CHECK_FUNCS([opendir]) + if test $ac_cv_func_opendir = no; then + HAVE_OPENDIR=0 + fi + dnl Replace opendir() for supporting the gnulib-defined fchdir() function, + dnl to keep fchdir's bookkeeping up-to-date. + m4_ifdef([gl_FUNC_FCHDIR], [ + gl_TEST_FCHDIR + if test $HAVE_FCHDIR = 0; then + if test $HAVE_OPENDIR = 1; then + REPLACE_OPENDIR=1 + fi + fi + ]) + dnl Replace opendir() on OS/2 kLIBC to support dirfd() function replaced + dnl by gnulib. + case $host_os,$HAVE_OPENDIR in + os2*,1) + REPLACE_OPENDIR=1;; + esac +]) |