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* configure.in: Support cross-compiling. * configure: Regenerate. * aclocal.m4 (gcc_AC_COMPILE_CHECK_SIZEOF): New. (gcc_AC_EXAMINE_OBJECT): New. (fastjar_AC_COMPILE_C_BIGENDIAN): New. From-SVN: r54216
272 lines
8.3 KiB
Plaintext
272 lines
8.3 KiB
Plaintext
dnl aclocal.m4 generated automatically by aclocal 1.4
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dnl Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl This program is distributed in the hope that it will be useful,
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dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
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dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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dnl PARTICULAR PURPOSE.
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# Do all the work for Automake. This macro actually does too much --
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# some checks are only needed if your package does certain things.
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# But this isn't really a big deal.
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# serial 1
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dnl Usage:
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dnl AM_INIT_AUTOMAKE(package,version, [no-define])
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AC_DEFUN(AM_INIT_AUTOMAKE,
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[AC_REQUIRE([AC_PROG_INSTALL])
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PACKAGE=[$1]
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AC_SUBST(PACKAGE)
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VERSION=[$2]
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AC_SUBST(VERSION)
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dnl test to see if srcdir already configured
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if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
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AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
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fi
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ifelse([$3],,
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AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
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AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package]))
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AC_REQUIRE([AM_SANITY_CHECK])
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AC_REQUIRE([AC_ARG_PROGRAM])
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dnl FIXME This is truly gross.
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missing_dir=`cd $ac_aux_dir && pwd`
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AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
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AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
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AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
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AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
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AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
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AC_REQUIRE([AC_PROG_MAKE_SET])])
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#
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# Check to make sure that the build environment is sane.
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#
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AC_DEFUN(AM_SANITY_CHECK,
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[AC_MSG_CHECKING([whether build environment is sane])
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# Just in case
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sleep 1
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echo timestamp > conftestfile
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# Do `set' in a subshell so we don't clobber the current shell's
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# arguments. Must try -L first in case configure is actually a
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# symlink; some systems play weird games with the mod time of symlinks
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# (eg FreeBSD returns the mod time of the symlink's containing
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# directory).
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if (
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set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
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if test "[$]*" = "X"; then
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# -L didn't work.
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set X `ls -t $srcdir/configure conftestfile`
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fi
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if test "[$]*" != "X $srcdir/configure conftestfile" \
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&& test "[$]*" != "X conftestfile $srcdir/configure"; then
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# If neither matched, then we have a broken ls. This can happen
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# if, for instance, CONFIG_SHELL is bash and it inherits a
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# broken ls alias from the environment. This has actually
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# happened. Such a system could not be considered "sane".
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AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
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alias in your environment])
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fi
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test "[$]2" = conftestfile
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)
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then
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# Ok.
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:
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else
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AC_MSG_ERROR([newly created file is older than distributed files!
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Check your system clock])
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fi
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rm -f conftest*
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AC_MSG_RESULT(yes)])
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dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
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dnl The program must properly implement --version.
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AC_DEFUN(AM_MISSING_PROG,
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[AC_MSG_CHECKING(for working $2)
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# Run test in a subshell; some versions of sh will print an error if
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# an executable is not found, even if stderr is redirected.
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# Redirect stdin to placate older versions of autoconf. Sigh.
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if ($2 --version) < /dev/null > /dev/null 2>&1; then
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$1=$2
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AC_MSG_RESULT(found)
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else
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$1="$3/missing $2"
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AC_MSG_RESULT(missing)
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fi
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AC_SUBST($1)])
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# Like AC_CONFIG_HEADER, but automatically create stamp file.
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AC_DEFUN(AM_CONFIG_HEADER,
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[AC_PREREQ([2.12])
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AC_CONFIG_HEADER([$1])
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dnl When config.status generates a header, we must update the stamp-h file.
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dnl This file resides in the same directory as the config header
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dnl that is generated. We must strip everything past the first ":",
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dnl and everything past the last "/".
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AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl
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ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>,
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<<test -z "<<$>>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/\)?.*>>, <<\1>>)stamp-h<<>>dnl>>,
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<<am_indx=1
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for am_file in <<$1>>; do
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case " <<$>>CONFIG_HEADERS " in
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*" <<$>>am_file "*<<)>>
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echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx
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;;
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esac
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am_indx=`expr "<<$>>am_indx" + 1`
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done<<>>dnl>>)
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changequote([,]))])
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# Add --enable-maintainer-mode option to configure.
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# From Jim Meyering
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# serial 1
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AC_DEFUN(AM_MAINTAINER_MODE,
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[AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
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dnl maintainer-mode is disabled by default
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AC_ARG_ENABLE(maintainer-mode,
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[ --enable-maintainer-mode enable make rules and dependencies not useful
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(and sometimes confusing) to the casual installer],
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USE_MAINTAINER_MODE=$enableval,
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USE_MAINTAINER_MODE=no)
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AC_MSG_RESULT($USE_MAINTAINER_MODE)
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AM_CONDITIONAL(MAINTAINER_MODE, test $USE_MAINTAINER_MODE = yes)
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MAINT=$MAINTAINER_MODE_TRUE
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AC_SUBST(MAINT)dnl
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]
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)
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# Define a conditional.
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AC_DEFUN(AM_CONDITIONAL,
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[AC_SUBST($1_TRUE)
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AC_SUBST($1_FALSE)
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if $2; then
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$1_TRUE=
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$1_FALSE='#'
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else
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$1_TRUE='#'
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$1_FALSE=
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fi])
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dnl Host type sizes probe.
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dnl By Kaveh R. Ghazi. One typo fixed since.
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dnl
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AC_DEFUN([gcc_AC_COMPILE_CHECK_SIZEOF],
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[changequote(<<, >>)dnl
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dnl The name to #define.
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define(<<AC_TYPE_NAME>>, translit(sizeof_$1, [a-z *], [A-Z_P]))dnl
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dnl The cache variable name.
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define(<<AC_CV_NAME>>, translit(ac_cv_sizeof_$1, [ *], [_p]))dnl
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changequote([, ])dnl
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AC_MSG_CHECKING(size of $1)
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AC_CACHE_VAL(AC_CV_NAME,
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[for ac_size in 4 8 1 2 16 $3 ; do # List sizes in rough order of prevalence.
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AC_TRY_COMPILE([#include "confdefs.h"
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#include <sys/types.h>
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$2
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], [switch (0) case 0: case (sizeof ($1) == $ac_size):;], AC_CV_NAME=$ac_size)
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if test x$AC_CV_NAME != x ; then break; fi
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done
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])
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if test x$AC_CV_NAME = x ; then
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AC_MSG_ERROR([cannot determine a size for $1])
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fi
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AC_MSG_RESULT($AC_CV_NAME)
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AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME, [The number of bytes in type $1])
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undefine([AC_TYPE_NAME])dnl
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undefine([AC_CV_NAME])dnl
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])
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dnl Utility macro used by next two tests.
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dnl AC_EXAMINE_OBJECT(C source code,
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dnl commands examining object file,
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dnl [commands to run if compile failed]):
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dnl
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dnl Compile the source code to an object file; then convert it into a
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dnl printable representation. All unprintable characters and
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dnl asterisks (*) are replaced by dots (.). All white space is
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dnl deleted. Newlines (ASCII 0x10) in the input are preserved in the
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dnl output, but runs of newlines are compressed to a single newline.
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dnl Finally, line breaks are forcibly inserted so that no line is
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dnl longer than 80 columns and the file ends with a newline. The
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dnl result of all this processing is in the file conftest.dmp, which
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dnl may be examined by the commands in the second argument.
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dnl
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AC_DEFUN([gcc_AC_EXAMINE_OBJECT],
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[AC_LANG_SAVE
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AC_LANG_C
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dnl Next bit cribbed from AC_TRY_COMPILE.
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cat > conftest.$ac_ext <<EOF
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[#line __oline__ "configure"
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#include "confdefs.h"
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$1
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]EOF
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if AC_TRY_EVAL(ac_compile); then
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od -c conftest.o |
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sed ['s/^[0-7]*[ ]*/ /
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s/\*/./g
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s/ \\n/*/g
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s/ [0-9][0-9][0-9]/./g
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s/ \\[^ ]/./g'] |
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tr -d '
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' | tr -s '*' '
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' | fold | sed '$a\
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' > conftest.dmp
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$2
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ifelse($3, , , else
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$3
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)dnl
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fi
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rm -rf conftest*
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AC_LANG_RESTORE])
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dnl Host endianness probe.
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dnl Differs from AC_C_BIGENDIAN in that it does not require
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dnl running a program on the host.
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dnl
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AC_DEFUN([fastjar_AC_COMPILE_C_BIGENDIAN],
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[AC_CACHE_CHECK(byte ordering, ac_cv_c_compile_endian,
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[ac_cv_c_compile_endian=unknown
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gcc_AC_EXAMINE_OBJECT([
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#ifdef HAVE_LIMITS_H
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# include <limits.h>
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#endif
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/* This structure must have no internal padding. */
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struct {
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char prefix[sizeof "\nendian:" - 1];
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short word;
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char postfix[2];
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} tester = {
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"\nendian:",
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#if SIZEOF_SHORT == 4
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('A' << (CHAR_BIT * 3)) | ('B' << (CHAR_BIT * 2)) |
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#endif
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('A' << CHAR_BIT) | 'B',
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'X', '\n'
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};],
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[if grep 'endian:AB' conftest.dmp >/dev/null 2>&1; then
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ac_cv_c_compile_endian=big-endian
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elif grep 'endian:BA' conftest.dmp >/dev/null 2>&1; then
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ac_cv_c_compile_endian=little-endian
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fi])
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])
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if test $ac_cv_c_compile_endian = unknown; then
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AC_MSG_ERROR([*** unable to determine endianness])
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elif test $ac_cv_c_compile_endian = big-endian; then
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AC_DEFINE(WORDS_BIG_ENDIAN, 1,
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[Define if the host machine stores words of multi-word integers in
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big-endian order.])
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fi
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])
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