# objc.m4 # Based on c.m4 from GNU Autoconf # The Objective C support, added by Landon Fuller # on March 10th, 2004, is heavily based on Autoconf's existing C++ support. # ########### Copyright and Licensing terms ########## # # This file is part of Autoconf. -*- Autoconf -*- # Programming languages support. # Copyright (C) 2001, 2002, 2003 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 2, 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. 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For software which is copyrighted by the Free # Software Foundation, write to the Free Software Foundation; we sometimes # make exceptions for this. Our decision will be guided by the two goals # of preserving the free status of all derivatives of our free software and # of promoting the sharing and reuse of software generally. # # NO WARRANTY # # 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY # FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN # OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES # PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED # OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF # MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS # TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE # PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, # REPAIR OR CORRECTION. # # 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING # WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR # REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, # INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING # OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED # TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY # YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER # PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE # POSSIBILITY OF SUCH DAMAGES. # # END OF TERMS AND CONDITIONS # # How to Apply These Terms to Your New Programs # # If you develop a new program, and you want it to be of the greatest # possible use to the public, the best way to achieve this is to make it # free software which everyone can redistribute and change under these terms. # # To do so, attach the following notices to the program. It is safest # to attach them to the start of each source file to most effectively # convey the exclusion of warranty; and each file should have at least # the "copyright" line and a pointer to where the full notice is found. # # # Copyright (C) # # 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 2 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, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA # # # Also add information on how to contact you by electronic and paper mail. # # If the program is interactive, make it output a short notice like this # when it starts in an interactive mode: # # Gnomovision version 69, Copyright (C) year name of author # Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. # This is free software, and you are welcome to redistribute it # under certain conditions; type `show c' for details. # # The hypothetical commands `show w' and `show c' should show the appropriate # parts of the General Public License. Of course, the commands you use may # be called something other than `show w' and `show c'; they could even be # mouse-clicks or menu items--whatever suits your program. # # You should also get your employer (if you work as a programmer) or your # school, if any, to sign a "copyright disclaimer" for the program, if # necessary. Here is a sample; alter the names: # # Yoyodyne, Inc., hereby disclaims all copyright interest in the program # `Gnomovision' (which makes passes at compilers) written by James Hacker. # # , 1 April 1989 # Ty Coon, President of Vice # # This General Public License does not permit incorporating your program into # proprietary programs. If your program is a subroutine library, you may # consider it more useful to permit linking proprietary applications with the # library. If this is what you want to do, use the GNU Library General # Public License instead of this License. # ########## End of GNU General Public License (GPL), version 2 ########## ## ----------------------- ## ## 1. Language selection. ## ## ----------------------- ## # ------------------------------ # # 1d. The Objective C language. # # ------------------------------ # # AC_LANG(Objective C) # -------------------- # OBJCFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options. m4_define([AC_LANG(Objective C)], [ac_ext=m ac_cpp='$OBJCPP $CPPFLAGS' ac_compile='$OBJC -c $OBJCFLAGS $CPPFLAGS conftest.$ac_ext >&AS_MESSAGE_LOG_FD' ac_link='$OBJC -o conftest$ac_exeext $OBJCFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&AS_MESSAGE_LOG_FD' ac_compiler_gnu=$ac_cv_objc_compiler_gnu ]) # AC_LANG_OBJC # ------------------------- AU_DEFUN([AC_LANG_OBJC], [AC_LANG(Objective C)]) # _AC_LANG_ABBREV(Objective C) # ---------------------------- m4_define([_AC_LANG_ABBREV(Objective C)], [objc]) # _AC_LANG_PREFIX(Objective C) # ---------------------------- m4_define([_AC_LANG_PREFIX(Objective C)], [OBJC]) ## ---------------------- ## ## 2.Producing programs. ## ## ---------------------- ## # ------------------------- # # 2d. Objective C sources. # # ------------------------- # # AC_LANG_SOURCE(Objective C)(BODY) # --------------------------------- m4_copy([AC_LANG_SOURCE(C)], [AC_LANG_SOURCE(Objective C)]) # AC_LANG_PROGRAM(Objective C)([PROLOGUE], [BODY]) # ------------------------------------------------ m4_copy([AC_LANG_PROGRAM(C)], [AC_LANG_PROGRAM(Objective C)]) # AC_LANG_CALL(Objective C)(PROLOGUE, FUNCTION) # --------------------------------------------- m4_copy([AC_LANG_CALL(C)], [AC_LANG_CALL(Objective C)]) # AC_LANG_FUNC_LINK_TRY(Objective C)(FUNCTION) # -------------------------------------------- m4_copy([AC_LANG_FUNC_LINK_TRY(C)], [AC_LANG_FUNC_LINK_TRY(Objective C)]) # AC_LANG_BOOL_COMPILE_TRY(Objective C)(PROLOGUE, EXPRESSION) # ----------------------------------------------------------- m4_copy([AC_LANG_BOOL_COMPILE_TRY(C)], [AC_LANG_BOOL_COMPILE_TRY(Objective C)]) # AC_LANG_INT_SAVE(Objective C)(PROLOGUE, EXPRESSION) # --------------------------------------------------- m4_copy([AC_LANG_INT_SAVE(C)], [AC_LANG_INT_SAVE(Objective C)]) ## -------------------------------------------- ## ## 3. Looking for Compilers and Preprocessors. ## ## -------------------------------------------- ## # ------------------------------ # # 3d. The Objective C compiler. # # ------------------------------ # # AC_LANG_PREPROC(Objecitve C) # ---------------------------- # Find the Objective C preprocessor. Must be AC_DEFUN'd to be AC_REQUIRE'able. AC_DEFUN([AC_LANG_PREPROC(Objective C)], [AC_REQUIRE([AC_PROG_OBJCPP])]) # AC_PROG_OBJCPP # -------------- # Find a working Objective C preprocessor. # We shouldn't have to require AC_PROG_CC, but this is due to the concurrency # between the AC_LANG_COMPILER_REQUIRE family and that of AC_PROG_OBJC. AC_DEFUN([AC_PROG_OBJCPP], [AC_REQUIRE([AC_PROG_OBJC])dnl AC_ARG_VAR([OBJCPP], [Objective C preprocessor])dnl _AC_ARG_VAR_CPPFLAGS()dnl AC_LANG_PUSH(Objective C)dnl AC_MSG_CHECKING([how to run the Objective C preprocessor]) if test -z "$OBJCPP"; then AC_CACHE_VAL(ac_cv_prog_OBJCPP, [dnl # Double quotes because OBJCPP needs to be expanded for OBJCPP in "$OBJC -E" "/lib/cpp" do _AC_PROG_PREPROC_WORKS_IFELSE([break]) done ac_cv_prog_OBJCPP=$OBJCPP ])dnl OBJCPP=$ac_cv_prog_OBJCPP else ac_cv_prog_OBJCPP=$OBJCPP fi AC_MSG_RESULT([$OBJCPP]) _AC_PROG_PREPROC_WORKS_IFELSE([], [AC_MSG_FAILURE([Objective C preprocessor "$OBJCPP" fails sanity check])]) AC_SUBST(OBJCPP)dnl AC_LANG_POP(Objective C)dnl ])# AC_PROG_OBJCPP # AC_LANG_COMPILER(Objective C) # ----------------------------- # Find the Objective C compiler. Must be AC_DEFUN'd to be AC_REQUIRE'able. AC_DEFUN([AC_LANG_COMPILER(Objective C)], [AC_REQUIRE([AC_PROG_OBJC])]) # ac_cv_prog_objc # --------------- # We used to name the cache variable this way. AU_DEFUN([ac_cv_prog_objc], [ac_cv_objc_compiler_gnu]) # AC_PROG_OBJC([LIST-OF-COMPILERS]) # --------------------------------- # LIST-OF-COMPILERS is a space separated list of Objective C compilers # to search for (if not specified, a default list is used). This just gives # the user an opportunity to specify an alternative search list for the # Objective C compiler. # cc Native compiler # objc David Stes' Portable Object Compiler AN_MAKEVAR([OBJC], [AC_PROG_OBJC]) AN_PROGRAM([gcc], [AC_PROG_OBJC]) AN_PROGRAM([cc], [AC_PROG_OBJC]) AC_DEFUN([AC_PROG_OBJC], [AC_LANG_PUSH(Objective C)dnl AC_ARG_VAR([OBJC], [Objective C compiler command])dnl AC_ARG_VAR([OBJCFLAGS], [Objective C compiler flags])dnl _AC_ARG_VAR_LDFLAGS()dnl _AC_ARG_VAR_CPPFLAGS()dnl AC_CHECK_TOOLS(OBJC, [$CCC m4_default([$1], [gcc cc objc])], gcc) # Provide some information about the compiler. echo "$as_me:$LINENO:" \ "checking for _AC_LANG compiler version" >&AS_MESSAGE_LOG_FD ac_compiler=`set X $ac_compile; echo $[2]` _AC_EVAL([$ac_compiler --version &AS_MESSAGE_LOG_FD]) _AC_EVAL([$ac_compiler -v &AS_MESSAGE_LOG_FD]) _AC_EVAL([$ac_compiler -V &AS_MESSAGE_LOG_FD]) m4_expand_once([_AC_COMPILER_EXEEXT])[]dnl m4_expand_once([_AC_COMPILER_OBJEXT])[]dnl _AC_LANG_COMPILER_GNU GOBJC=`test $ac_compiler_gnu = yes && echo yes` _AC_PROG_OBJC_G AC_LANG_POP(Objective C)dnl ])# AC_PROG_OBJC # _AC_PROG_OBJC_G # --------------- # Check whether -g works, even if OBJCFLAGS is set, in case the package # plays around with OBJCFLAGS (such as to build both debugging and # normal versions of a library), tasteless as that idea is. m4_define([_AC_PROG_OBJC_G], [ac_test_OBJCFLAGS=${OBJCFLAGS+set} ac_save_OBJCFLAGS=$OBJCFLAGS OBJCFLAGS="-g" AC_CACHE_CHECK(whether $OBJC accepts -g, ac_cv_prog_objc_g, [_AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [ac_cv_prog_objc_g=yes], [ac_cv_prog_objc_g=no])]) if test "$ac_test_OBJCFLAGS" = set; then OBJCFLAGS=$ac_save_OBJCFLAGS elif test $ac_cv_prog_objc_g = yes; then if test "$GOBJC" = yes; then OBJCFLAGS="-g -O2" else OBJCFLAGS="-g" fi else if test "$GOBJC" = yes; then OBJCFLAGS="-O2" else OBJCFLAGS= fi fi[]dnl ])# _AC_PROG_OBJC_G ## ------------------------------- ## ## 4. Compilers' characteristics. ## ## ------------------------------- ## # -------------------------------- # # 4b. C compiler characteristics. # # -------------------------------- # # libobjc and objc header tests shere?