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# Extracted from autoconf 2.61 to obtain Objective C macros.
# Only expand if the version of autoconf in use doesn't have the macro itself.
m4_ifdef([AC_PROG_OBJC], [], [
# This file is part of Autoconf. -*- Autoconf -*-
# Programming languages support.
# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 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. 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., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
#
# As a special exception, the Free Software Foundation gives unlimited
# permission to copy, distribute and modify the configure scripts that
# are the output of Autoconf. You need not follow the terms of the GNU
# General Public License when using or distributing such scripts, even
# though portions of the text of Autoconf appear in them. The GNU
# General Public License (GPL) does govern all other use of the material
# that constitutes the Autoconf program.
#
# Certain portions of the Autoconf source text are designed to be copied
# (in certain cases, depending on the input) into the output of
# Autoconf. We call these the "data" portions. The rest of the Autoconf
# source text consists of comments plus executable code that decides which
# of the data portions to output in any given case. We call these
# comments and executable code the "non-data" portions. Autoconf never
# copies any of the non-data portions into its output.
#
# This special exception to the GPL applies to versions of Autoconf
# released by the Free Software Foundation. When you make and
# distribute a modified version of Autoconf, you may extend this special
# exception to the GPL to apply to your modified version as well, *unless*
# your modified version has the potential to copy into its output some
# of the text that was the non-data portion of the version that you started
# with. (In other words, unless your change moves or copies text from
# the non-data portions to the data portions.) If your modification has
# such potential, you must delete any notice of this special exception
# to the GPL from your modified version.
#
# Written by David MacKenzie, with help from
# Akim Demaille, Paul Eggert,
# Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor,
# Roland McGrath, Noah Friedman, david d zuhn, and many others.
# ------------------------------ #
# 1d. The Objective C language. #
# ------------------------------ #
# AC_LANG(Objective C)
# --------------------
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])
# ------------------------- #
# 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)])
# ------------------------------ #
# 3d. The Objective C compiler. #
# ------------------------------ #
# AC_LANG_PREPROC(Objective C)
# ----------------------------
# Find the Objective C preprocessor. Must be AC_DEFUN'd to be AC_REQUIRE'able.
m4_defun([AC_LANG_PREPROC(Objective C)],
[AC_REQUIRE([AC_PROG_OBJCPP])])
# AC_PROG_OBJCPP
# --------------
# Find a working Objective C preprocessor.
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.
m4_defun([AC_LANG_COMPILER(Objective C)],
[AC_REQUIRE([AC_PROG_OBJC])])
# 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.
# objcc StepStone Objective-C compiler (also "standard" name for OBJC)
# objc David Stes' POC. If you installed this, you likely want it.
# cc Native C compiler (for instance, Apple).
# CC You never know.
AN_MAKEVAR([OBJC], [AC_PROG_OBJC])
AN_PROGRAM([objcc], [AC_PROG_OBJC])
AN_PROGRAM([objc], [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
dnl _AC_ARG_VAR_LIBS()dnl
_AC_ARG_VAR_CPPFLAGS()dnl
_AC_ARG_VAR_PRECIOUS([OBJC])dnl
AC_CHECK_TOOLS(OBJC,
[m4_default([$1], [gcc objcc objc cc CC])],
gcc)
# Provide some information about the compiler.
echo "$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 </dev/null >&AS_MESSAGE_LOG_FD])
_AC_EVAL([$ac_compiler -v </dev/null >&AS_MESSAGE_LOG_FD])
_AC_EVAL([$ac_compiler -V </dev/null >&AS_MESSAGE_LOG_FD])
m4_expand_once([_AC_COMPILER_EXEEXT])[]dnl
m4_expand_once([_AC_COMPILER_OBJEXT])[]dnl
_AC_LANG_COMPILER_GNU
GOBJC=`test $ac_compiler_gnu = yes && echo yes`
_AC_PROG_OBJC_G
AC_LANG_POP(Objective C)dnl
])# AC_PROG_OBJC
# _AC_PROG_OBJC_G
# ---------------
# Check whether -g works, even if OBJCFLAGS is set, in case the package
# plays around with OBJCFLAGS (such as to build both debugging and
# normal versions of a library), tasteless as that idea is.
# Don't consider -g to work if it generates warnings when plain compiles don't.
m4_define([_AC_PROG_OBJC_G],
[ac_test_OBJCFLAGS=${OBJCFLAGS+set}
ac_save_OBJCFLAGS=$OBJCFLAGS
AC_CACHE_CHECK(whether $OBJC accepts -g, ac_cv_prog_objc_g,
[ac_save_objc_werror_flag=$ac_objc_werror_flag
ac_objc_werror_flag=yes
ac_cv_prog_objc_g=no
OBJCFLAGS="-g"
_AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
[ac_cv_prog_objc_g=yes],
[OBJCFLAGS=""
_AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
[],
[ac_objc_werror_flag=$ac_save_objc_werror_flag
OBJCFLAGS="-g"
_AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
[ac_cv_prog_objc_g=yes])])])
ac_objc_werror_flag=$ac_save_objc_werror_flag])
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
])dnl m4_ifdef([AC_PROG_OBJC])
|
