summaryrefslogtreecommitdiff
path: root/gnulib-m4/fcntl_h.m4
diff options
context:
space:
mode:
authorJörg Frings-Fürst <debian@jff.email>2022-01-08 11:53:52 +0100
committerJörg Frings-Fürst <debian@jff.email>2022-01-08 11:53:52 +0100
commitfa838e76139763f902c7d27cb9e1d393ed6a15e4 (patch)
tree7d0ae09775ea950056193eaa2ca93844299d46f1 /gnulib-m4/fcntl_h.m4
parentc78359d9542c86b972aac373efcf7bc7a8a560e5 (diff)
parent2959e59fab3bab834368adefd90bd4b1b094366b (diff)
Merge branch 'feature/upstream' into develop
Diffstat (limited to 'gnulib-m4/fcntl_h.m4')
-rw-r--r--gnulib-m4/fcntl_h.m470
1 files changed, 70 insertions, 0 deletions
diff --git a/gnulib-m4/fcntl_h.m4 b/gnulib-m4/fcntl_h.m4
new file mode 100644
index 00000000..267f98bf
--- /dev/null
+++ b/gnulib-m4/fcntl_h.m4
@@ -0,0 +1,70 @@
+# serial 20
+# Configure fcntl.h.
+dnl Copyright (C) 2006-2007, 2009-2022 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_ONCE([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])
+])
+
+# gl_FCNTL_MODULE_INDICATOR([modulename])
+# sets the shell variable that indicates the presence of the given module
+# to a C preprocessor expression that will evaluate to 1.
+# This macro invocation must not occur in macros that are AC_REQUIREd.
+AC_DEFUN([gl_FCNTL_MODULE_INDICATOR],
+[
+ dnl Ensure to expand the default settings once only.
+ gl_FCNTL_H_REQUIRE_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])
+])
+
+# Initializes the default values for AC_SUBSTed shell variables.
+# This macro must not be AC_REQUIREd. It must only be invoked, and only
+# outside of macros or in macros that are not AC_REQUIREd.
+AC_DEFUN([gl_FCNTL_H_REQUIRE_DEFAULTS],
+[
+ m4_defun(GL_MODULE_INDICATOR_PREFIX[_FCNTL_H_MODULE_INDICATOR_DEFAULTS], [
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CREAT])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FCNTL])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_NONBLOCKING])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_OPEN])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_OPENAT])
+ dnl Support Microsoft deprecated alias function names by default.
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_CREAT], [1])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_OPEN], [1])
+ ])
+ m4_require(GL_MODULE_INDICATOR_PREFIX[_FCNTL_H_MODULE_INDICATOR_DEFAULTS])
+ AC_REQUIRE([gl_FCNTL_H_DEFAULTS])
+])
+
+AC_DEFUN([gl_FCNTL_H_DEFAULTS],
+[
+ 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_CREAT=0; AC_SUBST([REPLACE_CREAT])
+ REPLACE_FCNTL=0; AC_SUBST([REPLACE_FCNTL])
+ REPLACE_OPEN=0; AC_SUBST([REPLACE_OPEN])
+ REPLACE_OPENAT=0; AC_SUBST([REPLACE_OPENAT])
+])