aboutsummaryrefslogtreecommitdiff
path: root/m4/fcntl_h.m4
diff options
context:
space:
mode:
Diffstat (limited to 'm4/fcntl_h.m4')
-rw-r--r--m4/fcntl_h.m450
1 files changed, 50 insertions, 0 deletions
diff --git a/m4/fcntl_h.m4 b/m4/fcntl_h.m4
new file mode 100644
index 00000000..fb2556d3
--- /dev/null
+++ b/m4/fcntl_h.m4
@@ -0,0 +1,50 @@
+# serial 15
+# Configure fcntl.h.
+dnl Copyright (C) 2006-2007, 2009-2014 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.
+
+dnl Written by Paul Eggert.
+
+AC_DEFUN([gl_FCNTL_H],
+[
+ AC_REQUIRE([gl_FCNTL_H_DEFAULTS])
+ AC_REQUIRE([gl_FCNTL_O_FLAGS])
+ gl_NEXT_HEADERS([fcntl.h])
+
+ dnl Ensure the type pid_t gets defined.
+ AC_REQUIRE([AC_TYPE_PID_T])
+
+ dnl Ensure the type mode_t gets defined.
+ AC_REQUIRE([AC_TYPE_MODE_T])
+
+ dnl Check for declarations of anything we want to poison if the
+ dnl corresponding gnulib module is not in use, if it is not common
+ dnl enough to be declared everywhere.
+ gl_WARN_ON_USE_PREPARE([[#include <fcntl.h>
+ ]], [fcntl openat])
+])
+
+AC_DEFUN([gl_FCNTL_MODULE_INDICATOR],
+[
+ dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
+ AC_REQUIRE([gl_FCNTL_H_DEFAULTS])
+ gl_MODULE_INDICATOR_SET_VARIABLE([$1])
+ dnl Define it also as a C macro, for the benefit of the unit tests.
+ gl_MODULE_INDICATOR_FOR_TESTS([$1])
+])
+
+AC_DEFUN([gl_FCNTL_H_DEFAULTS],
+[
+ GNULIB_FCNTL=0; AC_SUBST([GNULIB_FCNTL])
+ GNULIB_NONBLOCKING=0; AC_SUBST([GNULIB_NONBLOCKING])
+ GNULIB_OPEN=0; AC_SUBST([GNULIB_OPEN])
+ GNULIB_OPENAT=0; AC_SUBST([GNULIB_OPENAT])
+ dnl Assume proper GNU behavior unless another module says otherwise.
+ HAVE_FCNTL=1; AC_SUBST([HAVE_FCNTL])
+ HAVE_OPENAT=1; AC_SUBST([HAVE_OPENAT])
+ REPLACE_FCNTL=0; AC_SUBST([REPLACE_FCNTL])
+ REPLACE_OPEN=0; AC_SUBST([REPLACE_OPEN])
+ REPLACE_OPENAT=0; AC_SUBST([REPLACE_OPENAT])
+])