2006-11-30 01:59:44 +00:00
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dnl -*- autoconf -*-
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dnl
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dnl Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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dnl University Research and Technology
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dnl Corporation. All rights reserved.
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dnl Copyright (c) 2004-2005 The University of Tennessee and The University
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dnl of Tennessee Research Foundation. All rights
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dnl reserved.
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dnl Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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dnl University of Stuttgart. All rights reserved.
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dnl Copyright (c) 2004-2005 The Regents of the University of California.
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dnl All rights reserved.
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dnl Copyright (c) 2006 Los Alamos National Security, LLC. All rights
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dnl reserved.
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dnl $COPYRIGHT$
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dnl
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dnl Additional copyrights may follow
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dnl
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dnl $HEADER$
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dnl
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# XXX - FIX ME - when we drop support for 2.58 and 2.59,
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# remove this stuff
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# Autoconf 2.59 and prior don't support Objective C code, so hack
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# in the minimal amount of support needed to build the XGrid
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# code on Mac OS X. Since the Objective C and C compilers are
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# one and the same on OS X, there isn't a whole lot of support
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# we really need here... Loosely based on how 2.59 treats
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# C++ source, plus lots of trial and error...
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m4_if(m4_version_compare(m4_defn([m4_PACKAGE_VERSION]), [2.60]), -1,
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[
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m4_define([AC_LANG(Objective C)],
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[ac_ext=m
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ac_cpp='$OBJCCPP $CPPFLAGS'
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ac_compile='$OBJC -c $OBJCFLAGS $CPPFLAGS conftest.$ac_ext >&AS_MESSAGE_LOG_FD'
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ac_link='$OBJC -o conftest$ac_exeext $OBJCFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&AS_MESSAGE_LOG_FD'
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ac_compiler_gnu=$ac_cv_objc_compiler_gnu
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])
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AU_DEFUN([AC_LANG_OBJC], [AC_LANG(Objective C)])
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m4_define([_AC_LANG_ABBREV(Objective C)], [objc])
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m4_define([_AC_LANG_PREFIX(Objective C)], [OBJC])
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m4_copy([AC_LANG_SOURCE(C)], [AC_LANG_SOURCE(Objective C)])
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m4_copy([AC_LANG_PROGRAM(C)], [AC_LANG_PROGRAM(Objective C)])
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# m4_defun instead of AC_DEFUN because there's a bad character for
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# the shell in the macro name and AM 1.9.6 appears to really not
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# like that behavior...
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m4_defun([AC_LANG_COMPILER(Objective C)],
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[AC_REQUIRE([AC_PROG_OBJC])])
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AC_DEFUN([AC_PROG_OBJC],
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[AC_LANG_PUSH(Objective C)dnl
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AC_ARG_VAR([OBJC], [Objective C compiler command])dnl
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AC_ARG_VAR([OBJCFLAGS], [Objective C compiler flags])dnl
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_AC_ARG_VAR_LDFLAGS()dnl
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_AC_ARG_VAR_CPPFLAGS()dnl
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_AC_ARG_VAR_PRECIOUS([OBJC])dnl
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AC_CHECK_TOOLS(OBJC,
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[m4_default([$1], [gcc objcc cc])], gcc)
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# Provide some information about the compiler.
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echo "$as_me:$LINENO:" \
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"checking for _AC_LANG compiler version" >&AS_MESSAGE_LOG_FD
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ac_compiler=`set X $ac_compile; echo $[2]`
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_AC_EVAL([$ac_compiler --version </dev/null >&AS_MESSAGE_LOG_FD])
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_AC_EVAL([$ac_compiler -v </dev/null >&AS_MESSAGE_LOG_FD])
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_AC_EVAL([$ac_compiler -V </dev/null >&AS_MESSAGE_LOG_FD])
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m4_expand_once([_AC_COMPILER_EXEEXT])[]dnl
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m4_expand_once([_AC_COMPILER_OBJEXT])[]dnl
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_AC_LANG_COMPILER_GNU
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GOBJC=`test $ac_compiler_gnu = yes && echo yes`
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AC_LANG_POP(Objective C)dnl
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_AM_DEPENDENCIES(OBJC)
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])
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])
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