view lib/javacomp.h @ 12766:2c14f1e449e5

warn-on-use: use instead of link-warning Each *.in.h file serves two purposes - provide enough self-contained content to serve as a replacement for the system header regardless of the user's compiler, and offer the developer the ability to detect any gnulib modules that might have been inadvertantly excluded. The former requires independence from config.h, and routes everything through a Makefile.am snippet that uses @@ substitution specific to the modules that were in use, with details learned at configure time. The latter works by poisoning anything that gnulib did not replace, but which the developer had natively available, explaining why their tests passed during development. Poisoning relies on gcc features, and requires manual triggering by adding -DGNULIB_POSIXCHECK to CFLAGS; it assumes that <config.h> is properly included. In fact, we do not want to use @@ substitution for HAVE_DECL_* during poisoning, because the warning is only relevant for the gnulib modules which were not included, and thus where the m4 macros to set proper @@ values have not been run. Furthermore, we only need to poison interfaces that already have a declaration; if something is not declared, then the developer wouldn't have been able to link, so their code won't be using the problematic interface in the first place. * modules/stdio (Depends-on, Makefile.am): Drop link-warning. * modules/unistd (Depends-on, Makefile.am): Likewise. * modules/arpa_inet (Depends-on): Replace link-warning with warn-on-use. (Makefile.am): Update rules accordingly. * modules/ctype (Depends-on, Makefile.am): Likewise. * modules/dirent (Depends-on, Makefile.am): Likewise. * modules/fcntl-h (Depends-on, Makefile.am): Likewise. * modules/inttypes (Depends-on, Makefile.am): Likewise. * modules/langinfo (Depends-on, Makefile.am): Likewise. * modules/locale (Depends-on, Makefile.am): Likewise. * modules/math (Depends-on, Makefile.am): Likewise. * modules/search (Depends-on, Makefile.am): Likewise. * modules/signal (Depends-on, Makefile.am): Likewise. * modules/spawn (Depends-on, Makefile.am): Likewise. * modules/stdlib (Depends-on, Makefile.am): Likewise. * modules/string (Depends-on, Makefile.am): Likewise. * modules/strings (Depends-on, Makefile.am): Likewise. * modules/sys_file (Depends-on, Makefile.am): Likewise. * modules/sys_ioctl (Depends-on, Makefile.am): Likewise. * modules/sys_select (Depends-on, Makefile.am): Likewise. * modules/sys_socket (Depends-on, Makefile.am): Likewise. * modules/sys_stat (Depends-on, Makefile.am): Likewise. * modules/sys_times (Depends-on, Makefile.am): Likewise. * modules/sys_utsname (Depends-on, Makefile.am): Likewise. * modules/wchar (Depends-on, Makefile.am): Likewise. * m4/arpa_inet_h.m4 (gl_HEADER_ARPA_INET): Check which functions should be poisoned. * m4/ctype.m4 (gl_CTYPE_H): Likewise. * m4/dirent_h.m4 (gl_DIRENT_H): Likewise. * m4/fcntl_h.m4 (gl_FCNTL_H): Likewise. * m4/inttypes.m4 (gl_INTTYPES_H): Likewise. * m4/langinfo_h.m4 (gl_LANGINFO_H): Likewise. * m4/locale_h.m4 (gl_LOCALE_H): Likewise. * m4/math_h.m4 (gl_MATH_H): Likewise. * m4/search_h.m4 (gl_SEARCH_H): Likewise. * m4/signal_h.m4 (gl_SIGNAL_H): Likewise. * m4/spawn_h.m4 (gl_SPAWN_H): Likewise. * m4/stdio_h.m4 (gl_STDIO_H): Likewise. * m4/stdlib_h.m4 (gl_STDLIB_H): Likewise. * m4/string_h.m4 (gl_HEADER_STRING_H_BODY): Likewise. * m4/strings_h.m4 (gl_HEADER_STRINGS_H_BODY): Likewise. * m4/sys_file_h.m4 (gl_HEADER_SYS_FILE_H_DEFAULTS): Likewise. * m4/sys_ioctl_h.m4 (gl_SYS_IOCTL_H): Likewise. * m4/sys_select_h.m4 (gl_HEADER_SYS_SELECT): Likewise. * m4/sys_socket_h.m4 (gl_HEADER_SYS_SOCKET): Likewise. * m4/sys_stat_h.m4 (gl_HEADER_SYS_STAT_H): Likewise. * m4/sys_times_h.m4 (gl_SYS_TIMES_H): Likewise. * m4/sys_utsname_h.m4 (gl_SYS_UTSNAME_H): Likewise. * m4/unistd_h.m4 (gl_UNISTD_H): Likewise. * m4/wchar.m4 (gl_WCHAR_H): Likewise. * lib/arpa_inet.in.h: Use _GL_WARN_ON_USE instead of GL_LINK_WARNING. * lib/ctype.in.h: Likewise. * lib/dirent.in.h: Likewise. * lib/fcntl.in.h: Likewise. * lib/inttypes.in.h: Likewise. * lib/langinfo.in.h: Likewise. * lib/locale.in.h: Likewise. * lib/math.in.h: Likewise. * lib/search.in.h: Likewise. * lib/signal.in.h: Likewise. * lib/spawn.in.h: Likewise. * lib/stdio.in.h: Likewise. * lib/stdlib.in.h: Likewise. * lib/string.in.h: Likewise. * lib/strings.in.h: Likewise. * lib/sys_file.in.h: Likewise. * lib/sys_ioctl.in.h: Likewise. * lib/sys_select.in.h: Likewise. * lib/sys_socket.in.h: Likewise. * lib/sys_stat.in.h: Likewise. * lib/sys_times.in.h: Likewise. * lib/sys_utsname.in.h: Likewise. * lib/unistd.in.h: Likewise. * lib/wchar.in.h: Likewise. Signed-off-by: Eric Blake <ebb9@byu.net>
author Eric Blake <ebb9@byu.net>
date Wed, 16 Dec 2009 16:20:28 -0700 (2009-12-16)
parents c2cbabec01dd
children 97fc9a21a8fb
line wrap: on
line source
/* Compile a Java program.
   Copyright (C) 2001-2002, 2006, 2009-2010 Free Software Foundation, Inc.
   Written by Bruno Haible <haible@clisp.cons.org>, 2001.

   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/>.  */

#ifndef _JAVACOMP_H
#define _JAVACOMP_H

#include <stdbool.h>

/* Compile a Java source file to bytecode.
   java_sources is an array of source file names.
   classpaths is a list of pathnames to be prepended to the CLASSPATH.

   source_version can be:    support for
             1.3             inner classes
             1.4             assert keyword
             1.5             generic classes and methods
             1.6             (not yet supported)
   target_version can be:  classfile version:
             1.1                 45.3
             1.2                 46.0
             1.3                 47.0
             1.4                 48.0
             1.5                 49.0
             1.6                 50.0
   target_version can also be given as NULL. In this case, the required
   target_version is determined from the found JVM (see javaversion.h).
   Specifying target_version is useful when building a library (.jar) that is
   useful outside the given package. Passing target_version = NULL is useful
   when building an application.
   It is unreasonable to ask for:
     - target_version < 1.4 with source_version >= 1.4, or
     - target_version < 1.5 with source_version >= 1.5, or
     - target_version < 1.6 with source_version >= 1.6,
   because even Sun's javac doesn't support these combinations.
   It is redundant to ask for a target_version > source_version, since the
   smaller target_version = source_version will also always work and newer JVMs
   support the older target_versions too. Except for the case
   target_version = 1.4, source_version = 1.3, which allows gcj versions 3.0
   to 3.2 to be used.

   directory is the target directory. The .class file for class X.Y.Z is
   written at directory/X/Y/Z.class. If directory is NULL, the .class
   file is written in the source's directory.
   use_minimal_classpath = true means to ignore the user's CLASSPATH and
   use a minimal one. This is likely to reduce possible problems if the
   user's CLASSPATH contains garbage or a classes.zip file of the wrong
   Java version.
   If verbose, the command to be executed will be printed.
   Return false if OK, true on error.  */
extern bool compile_java_class (const char * const *java_sources,
                                unsigned int java_sources_count,
                                const char * const *classpaths,
                                unsigned int classpaths_count,
                                const char *source_version,
                                const char *target_version,
                                const char *directory,
                                bool optimize, bool debug,
                                bool use_minimal_classpath,
                                bool verbose);

#endif /* _JAVACOMP_H */