New module '_Exit'.

diff --git a/ChangeLog b/ChangeLog
index 97a604be279dd19d2f5389c139211fcdbd024184..f644d195bfe430054598d76c1cf2a93cb0c201b0 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,17 @@
+2010-07-12  Bruno Haible  <bruno@clisp.org>
+
+       New module '_Exit'.
+       * lib/stdlib.in.h (__attribute__): New macro.
+       (_Exit): New declaration.
+       * lib/_Exit.c: New file.
+       * m4/_Exit.m4: New file.
+       * m4/stdlib_h.m4 (gl_STDLIB_H): Check whether _Exit is declared.
+       (gl_STDLIB_H_DEFAULTS): Initialize GNULIB__EXIT and HAVE__EXIT.
+       * modules/stdlib (Makefile.am): Substitute GNULIB__EXIT and HAVE__EXIT.
+       * modules/_Exit: New file.
+       * tests/test-stdlib-c++.cc (_Exit): Check signature.
+       * doc/posix-functions/_Exit_C99.texi: Mention the new module.
+
 2010-07-12  Paul R. Eggert  <eggert@cs.ucla.edu>
 
        strtod: make it more-accurate typically, and don't require libm

diff --git a/doc/posix-functions/_Exit_C99.texi b/doc/posix-functions/_Exit_C99.texi
index 655762036f1c9106d0189376518d75ee0938491f..fa9930611e462da9977fbe720514289536c71029 100644 (file)
--- a/doc/posix-functions/_Exit_C99.texi
+++ b/doc/posix-functions/_Exit_C99.texi
@@ -7,15 +7,15 @@
 
 POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/_Exit.html}
 
-Gnulib module: ---
+Gnulib module: _Exit
 
 Portability problems fixed by Gnulib:
 @itemize
+@item
+This function is missing on some platforms:
+AIX 5.1, HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 9, Cygwin 1.5.x, Interix 3.5, BeOS.
 @end itemize
 
 Portability problems not fixed by Gnulib:
 @itemize
-@item
-This function is missing on some platforms:
-AIX 5.1, HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 9, Cygwin 1.5.x, Interix 3.5, BeOS.
 @end itemize

diff --git a/lib/_Exit.c b/lib/_Exit.c
new file mode 100644 (file)
index 0000000..ee11874
--- /dev/null
+++ b/lib/_Exit.c
@@ -0,0 +1,27 @@
+/* Copyright (C) 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include <stdlib.h>
+
+#include <unistd.h>
+
+void
+_Exit (int status)
+{
+  _exit (status);
+}

diff --git a/lib/stdlib.in.h b/lib/stdlib.in.h
index da162599b0cb4ac4034c102809eec73cb492d166..d4ac4690305e702548d04ab816ccf66c2056e7b4 100644 (file)
--- a/lib/stdlib.in.h
+++ b/lib/stdlib.in.h
@@ -74,6 +74,12 @@ struct random_data
 # include <unistd.h>
 #endif
 
+#ifndef __attribute__
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8)
+#  define __attribute__(Spec)   /* empty */
+# endif
+#endif
+
 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
 
 /* The definition of _GL_ARG_NONNULL is copied here.  */
@@ -95,6 +101,23 @@ struct random_data
 #endif
 
 
+#if @GNULIB__EXIT@
+/* Terminate the current process with the given return code, without running
+   the 'atexit' handlers.  */
+# if !@HAVE__EXIT@
+_GL_FUNCDECL_SYS (_Exit, void, (int status) __attribute__ ((__noreturn__)));
+# endif
+_GL_CXXALIAS_SYS (_Exit, void, (int status));
+_GL_CXXALIASWARN (_Exit);
+#elif defined GNULIB_POSIXCHECK
+# undef _Exit
+# if HAVE_RAW_DECL__EXIT
+_GL_WARN_ON_USE (_Exit, "_Exit is unportable - "
+                 "use gnulib module _Exit for portability");
+# endif
+#endif
+
+
 #if @GNULIB_ATOLL@
 /* Parse a signed decimal integer.
    Returns the value of the integer.  Errors are not detected.  */

diff --git a/m4/_Exit.m4 b/m4/_Exit.m4
new file mode 100644 (file)
index 0000000..d3c5eb7
--- /dev/null
+++ b/m4/_Exit.m4
@@ -0,0 +1,21 @@
+# _Exit.m4 serial 1
+dnl Copyright (C) 2010 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__EXIT],
+[
+  AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
+  AC_CHECK_FUNCS([_Exit])
+  if test $ac_cv_func__Exit = no; then
+    HAVE__EXIT=0
+    AC_LIBOBJ([_Exit])
+    gl_PREREQ__EXIT
+  fi
+])
+
+# Prerequisites of lib/_Exit.c.
+AC_DEFUN([gl_PREREQ__EXIT], [
+  :
+])

diff --git a/m4/stdlib_h.m4 b/m4/stdlib_h.m4
index b297ee207b23985b7055c8ce423c6c5533f37e56..fc150197b1303d17fc76669732f2f924585963c4 100644 (file)
--- a/m4/stdlib_h.m4
+++ b/m4/stdlib_h.m4
@@ -1,4 +1,4 @@
-# stdlib_h.m4 serial 29
+# stdlib_h.m4 serial 30
 dnl Copyright (C) 2007-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -33,7 +33,7 @@ AC_DEFUN([gl_STDLIB_H],
 #if HAVE_RANDOM_H
 # include <random.h>
 #endif
-    ]], [atoll canonicalize_file_name getloadavg getsubopt grantpt mkdtemp
+    ]], [_Exit atoll canonicalize_file_name getloadavg getsubopt grantpt mkdtemp
     mkostemp mkostemps mkstemp mkstemps ptsname random_r initstat_r srandom_r
     setstate_r realpath rpmatch setenv strtod strtoll strtoull unlockpt
     unsetenv])
@@ -50,6 +50,7 @@ AC_DEFUN([gl_STDLIB_MODULE_INDICATOR],
 
 AC_DEFUN([gl_STDLIB_H_DEFAULTS],
 [
+  GNULIB__EXIT=0;         AC_SUBST([GNULIB__EXIT])
   GNULIB_ATOLL=0;         AC_SUBST([GNULIB_ATOLL])
   GNULIB_CALLOC_POSIX=0;  AC_SUBST([GNULIB_CALLOC_POSIX])
   GNULIB_CANONICALIZE_FILE_NAME=0;  AC_SUBST([GNULIB_CANONICALIZE_FILE_NAME])
@@ -75,6 +76,7 @@ AC_DEFUN([gl_STDLIB_H_DEFAULTS],
   GNULIB_UNLOCKPT=0;      AC_SUBST([GNULIB_UNLOCKPT])
   GNULIB_UNSETENV=0;      AC_SUBST([GNULIB_UNSETENV])
   dnl Assume proper GNU behavior unless another module says otherwise.
+  HAVE__EXIT=1;              AC_SUBST([HAVE__EXIT])
   HAVE_ATOLL=1;              AC_SUBST([HAVE_ATOLL])
   HAVE_CANONICALIZE_FILE_NAME=1;  AC_SUBST([HAVE_CANONICALIZE_FILE_NAME])
   HAVE_DECL_GETLOADAVG=1;    AC_SUBST([HAVE_DECL_GETLOADAVG])

diff --git a/modules/_Exit b/modules/_Exit
new file mode 100644 (file)
index 0000000..2b5cc08
--- /dev/null
+++ b/modules/_Exit
@@ -0,0 +1,24 @@
+Description:
+_Exit() function: terminate current process.
+
+Files:
+lib/_Exit.c
+m4/_Exit.m4
+
+Depends-on:
+stdlib
+
+configure.ac:
+gl_FUNC__EXIT
+gl_STDLIB_MODULE_INDICATOR([_Exit])
+
+Makefile.am:
+
+Include:
+<stdlib.h>
+
+License:
+LGPL
+
+Maintainer:
+all

diff --git a/modules/stdlib b/modules/stdlib
index 7af315fd485bf6894f7d4faf04497700ba351866..489f70a1a51333a54a8da9119e9a7db0d2023eac 100644 (file)
--- a/modules/stdlib
+++ b/modules/stdlib
@@ -28,6 +28,7 @@ stdlib.h: stdlib.in.h $(CXXDEFS_H) $(ARG_NONNULL_H) $(WARN_ON_USE_H)
          sed -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
              -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
              -e 's|@''NEXT_STDLIB_H''@|$(NEXT_STDLIB_H)|g' \
+             -e 's|@''GNULIB__EXIT''@|$(GNULIB__EXIT)|g' \
              -e 's|@''GNULIB_ATOLL''@|$(GNULIB_ATOLL)|g' \
              -e 's|@''GNULIB_CALLOC_POSIX''@|$(GNULIB_CALLOC_POSIX)|g' \
              -e 's|@''GNULIB_CANONICALIZE_FILE_NAME''@|$(GNULIB_CANONICALIZE_FILE_NAME)|g' \
@@ -52,6 +53,7 @@ stdlib.h: stdlib.in.h $(CXXDEFS_H) $(ARG_NONNULL_H) $(WARN_ON_USE_H)
              -e 's|@''GNULIB_STRTOULL''@|$(GNULIB_STRTOULL)|g' \
              -e 's|@''GNULIB_UNLOCKPT''@|$(GNULIB_UNLOCKPT)|g' \
              -e 's|@''GNULIB_UNSETENV''@|$(GNULIB_UNSETENV)|g' \
+             -e 's|@''HAVE__EXIT''@|$(HAVE__EXIT)|g' \
              -e 's|@''HAVE_ATOLL''@|$(HAVE_ATOLL)|g' \
              -e 's|@''HAVE_CANONICALIZE_FILE_NAME''@|$(HAVE_CANONICALIZE_FILE_NAME)|g' \
              -e 's|@''HAVE_DECL_GETLOADAVG''@|$(HAVE_DECL_GETLOADAVG)|g' \

diff --git a/tests/test-stdlib-c++.cc b/tests/test-stdlib-c++.cc
index 3874d2767f7b0ff00c47218b2c3b87f2a6023eda..c66c1a894e42984dfd77ecf5f430a20b475be0b4 100644 (file)
--- a/tests/test-stdlib-c++.cc
+++ b/tests/test-stdlib-c++.cc
@@ -24,6 +24,10 @@
 #include "signature.h"
 
 
+#if GNULIB_TEST__EXIT
+SIGNATURE_CHECK (GNULIB_NAMESPACE::_Exit, void, (int));
+#endif
+
 //SIGNATURE_CHECK (GNULIB_NAMESPACE::atexit, int, (void (*) (void)));
 
 #if GNULIB_TEST_ATOLL