1 dnl aclocal.m4 generated automatically by aclocal 1.4
3 dnl Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc.
4 dnl This file is free software; the Free Software Foundation
5 dnl gives unlimited permission to copy and/or distribute it,
6 dnl with or without modifications, as long as this notice is preserved.
8 dnl This program is distributed in the hope that it will be useful,
9 dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
10 dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
11 dnl PARTICULAR PURPOSE.
13 dnl This provides configure definitions used by all the newlib
14 dnl configure.in files.
16 dnl Basic newlib configury. This calls basic introductory stuff,
17 dnl including AM_INIT_AUTOMAKE and AC_CANONICAL_HOST. It also runs
18 dnl configure.host. The only argument is the relative path to the top
21 AC_DEFUN(NEWLIB_CONFIGURE,
23 dnl Default to --enable-multilib
24 AC_ARG_ENABLE(multilib,
25 [ --enable-multilib build many library versions (default)],
26 [case "${enableval}" in
29 *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
30 esac], [multilib=yes])dnl
32 dnl Support --enable-target-optspace
33 AC_ARG_ENABLE(target-optspace,
34 [ --enable-target-optspace optimize for space],
35 [case "${enableval}" in
36 yes) target_optspace=yes ;;
37 no) target_optspace=no ;;
38 *) AC_MSG_ERROR(bad value ${enableval} for target-optspace option) ;;
39 esac], [target_optspace=])dnl
41 dnl Support --enable-malloc-debugging - currently only supported for Cygwin
42 AC_ARG_ENABLE(malloc-debugging,
43 [ --enable-malloc-debugging indicate malloc debugging requested],
44 [case "${enableval}" in
45 yes) malloc_debugging=yes ;;
46 no) malloc_debugging=no ;;
47 *) AC_MSG_ERROR(bad value ${enableval} for malloc-debugging option) ;;
48 esac], [malloc_debugging=])dnl
50 dnl Support --enable-newlib-mb
51 AC_ARG_ENABLE(newlib-mb,
52 [ --enable-newlib-mb enable multibyte support],
53 [case "${enableval}" in
56 *) AC_MSG_ERROR(bad value ${enableval} for newlib-mb option) ;;
57 esac], [newlib_mb=no])dnl
59 dnl Support --disable-newlib-io-float
60 AC_ARG_ENABLE(newlib-io-float,
61 [ --disable-newlib-io-float disable printf/scanf family float support],
62 [case "${enableval}" in
63 yes) newlib_io_float=yes ;;
64 no) newlib_io_float=no ;;
65 *) AC_MSG_ERROR(bad value ${enableval} for newlib-io-float option) ;;
66 esac], [newlib_io_float=yes])dnl
69 dnl We may get other options which we don't document:
70 dnl --with-target-subdir, --with-multisrctop, --with-multisubdir
72 test -z "[$]{with_target_subdir}" && with_target_subdir=.
74 if test "[$]{srcdir}" = "."; then
75 if test "[$]{with_target_subdir}" != "."; then
76 newlib_basedir="[$]{srcdir}/[$]{with_multisrctop}../$1"
78 newlib_basedir="[$]{srcdir}/[$]{with_multisrctop}$1"
81 newlib_basedir="[$]{srcdir}/$1"
83 AC_SUBST(newlib_basedir)
87 AM_INIT_AUTOMAKE(newlib, 1.10.0)
89 # FIXME: We temporarily define our own version of AC_PROG_CC. This is
90 # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We
91 # are probably using a cross compiler, which will not be able to fully
92 # link an executable. This should really be fixed in autoconf
95 AC_DEFUN(LIB_AC_PROG_CC,
96 [AC_BEFORE([$0], [AC_PROG_CPP])dnl
97 AC_CHECK_PROG(CC, gcc, gcc)
98 if test -z "$CC"; then
99 AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
100 test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
105 if test $ac_cv_prog_gcc = yes; then
107 dnl Check whether -g works, even if CFLAGS is set, in case the package
108 dnl plays around with CFLAGS (such as to build both debugging and
109 dnl normal versions of a library), tasteless as that idea is.
110 ac_test_CFLAGS="${CFLAGS+set}"
111 ac_save_CFLAGS="$CFLAGS"
114 if test "$ac_test_CFLAGS" = set; then
115 CFLAGS="$ac_save_CFLAGS"
116 elif test $ac_cv_prog_cc_g = yes; then
123 test "${CFLAGS+set}" = set || CFLAGS="-g"
129 AC_CHECK_TOOL(AS, as)
130 AC_CHECK_TOOL(AR, ar)
131 AC_CHECK_TOOL(RANLIB, ranlib, :)
137 # We need AC_EXEEXT to keep automake happy in cygnus mode. However,
138 # at least currently, we never actually build a program, so we never
139 # need to use $(EXEEXT). Moreover, the test for EXEEXT normally
140 # fails, because we are probably configuring with a cross compiler
141 # which can't create executables. So we include AC_EXEEXT to keep
142 # automake happy, but we don't execute it, since we don't care about
148 . [$]{newlib_basedir}/configure.host
150 newlib_cflags="[$]{newlib_cflags} -fno-builtin"
152 NEWLIB_CFLAGS=${newlib_cflags}
153 AC_SUBST(NEWLIB_CFLAGS)
158 AM_CONDITIONAL(USE_LIBTOOL, test x[$]{use_libtool} = xyes)
162 AC_SUBST(libm_machine_dir)
163 AC_SUBST(machine_dir)
167 # Do all the work for Automake. This macro actually does too much --
168 # some checks are only needed if your package does certain things.
169 # But this isn't really a big deal.
174 dnl AM_INIT_AUTOMAKE(package,version, [no-define])
176 AC_DEFUN(AM_INIT_AUTOMAKE,
177 [AC_REQUIRE([AC_PROG_INSTALL])
182 dnl test to see if srcdir already configured
183 if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
184 AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
187 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
188 AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package]))
189 AC_REQUIRE([AM_SANITY_CHECK])
190 AC_REQUIRE([AC_ARG_PROGRAM])
191 dnl FIXME This is truly gross.
192 missing_dir=`cd $ac_aux_dir && pwd`
193 AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
194 AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
195 AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
196 AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
197 AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
198 AC_REQUIRE([AC_PROG_MAKE_SET])])
201 # Check to make sure that the build environment is sane.
204 AC_DEFUN(AM_SANITY_CHECK,
205 [AC_MSG_CHECKING([whether build environment is sane])
208 echo timestamp > conftestfile
209 # Do `set' in a subshell so we don't clobber the current shell's
210 # arguments. Must try -L first in case configure is actually a
211 # symlink; some systems play weird games with the mod time of symlinks
212 # (eg FreeBSD returns the mod time of the symlink's containing
215 set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
216 if test "[$]*" = "X"; then
218 set X `ls -t $srcdir/configure conftestfile`
220 if test "[$]*" != "X $srcdir/configure conftestfile" \
221 && test "[$]*" != "X conftestfile $srcdir/configure"; then
223 # If neither matched, then we have a broken ls. This can happen
224 # if, for instance, CONFIG_SHELL is bash and it inherits a
225 # broken ls alias from the environment. This has actually
226 # happened. Such a system could not be considered "sane".
227 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
228 alias in your environment])
231 test "[$]2" = conftestfile
237 AC_MSG_ERROR([newly created file is older than distributed files!
238 Check your system clock])
243 dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
244 dnl The program must properly implement --version.
245 AC_DEFUN(AM_MISSING_PROG,
246 [AC_MSG_CHECKING(for working $2)
247 # Run test in a subshell; some versions of sh will print an error if
248 # an executable is not found, even if stderr is redirected.
249 # Redirect stdin to placate older versions of autoconf. Sigh.
250 if ($2 --version) < /dev/null > /dev/null 2>&1; then
255 AC_MSG_RESULT(missing)
259 # Add --enable-maintainer-mode option to configure.
264 AC_DEFUN(AM_MAINTAINER_MODE,
265 [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
266 dnl maintainer-mode is disabled by default
267 AC_ARG_ENABLE(maintainer-mode,
268 [ --enable-maintainer-mode enable make rules and dependencies not useful
269 (and sometimes confusing) to the casual installer],
270 USE_MAINTAINER_MODE=$enableval,
271 USE_MAINTAINER_MODE=no)
272 AC_MSG_RESULT($USE_MAINTAINER_MODE)
273 AM_CONDITIONAL(MAINTAINER_MODE, test $USE_MAINTAINER_MODE = yes)
274 MAINT=$MAINTAINER_MODE_TRUE
279 # Define a conditional.
281 AC_DEFUN(AM_CONDITIONAL,