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# Autoconf configure script for avr libc/libm main directory.
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# Process this file with autoconf to produce a configure script.
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# Copyright (c) 2002, 2003, 2004
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# Reinhard Jessich <reinhard.jessich@telering.at>
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# * Neither the name of the copyright holders nor the names of
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# contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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dnl Default to --enable-multilib
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AC_ARG_ENABLE(multilib,
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[ --enable-multilib build many library versions (default)],
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[case "${enableval}" in
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*) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
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esac], [multilib=yes])dnl
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dnl TODO: Check for various tools used to build the documentation. If anything
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dnl is missing, don't build the docs by default.
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dnl Disable building of dox by default since it they may not build properly on
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dnl all systems. This isn't optimal, but how do we work around the user not
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dnl having fig2dev and still build all the formats?
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[ --enable-doc build all doc formats (disabled is default)],
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[case "${enableval}" in
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yes) enable_doc=yes ;;
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*) AC_MSG_ERROR(bad value ${enableval} for global doc option) ;;
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esac], [enable_doc=no])dnl
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dnl Various documentation options. By default, we enable all of them,
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dnl i. e. HTML, Postscript, PDF, and Unix-style man pages.
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AC_ARG_ENABLE(html-doc,
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[ --enable-html-doc build HTML documentation (default)],
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[case "${enableval}" in
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*) AC_MSG_ERROR(bad value ${enableval} for html-doc option) ;;
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esac], [html_doc=yes])dnl
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[ --enable-ps-doc build Postscript documentation (default)],
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[case "${enableval}" in
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*) AC_MSG_ERROR(bad value ${enableval} for ps-doc option) ;;
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esac], [ps_doc=yes])dnl
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AC_ARG_ENABLE(pdf-doc,
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[ --enable-pdf-doc build PDF documentation (default)],
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[case "${enableval}" in
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*) AC_MSG_ERROR(bad value ${enableval} for pdf-doc option) ;;
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esac], [pdf_doc=yes])dnl
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dnl Man pages are currently not tunable; they'll be built whenever
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dnl the HTML documentation is built. However, it can be configured
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dnl whether the result is about to be installed or not.
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AC_ARG_ENABLE(man-doc,
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[ --enable-man-doc build Unix-style manual pages (default)],
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[case "${enableval}" in
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*) AC_MSG_ERROR(bad value ${enableval} for man-doc option) ;;
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esac], [man_doc=yes])dnl
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AC_ARG_ENABLE(versioned-doc,
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[ --enable-versioned-doc install docs in directory with version name (default)],
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[case "${enableval}" in
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yes) versioned_doc=yes ;;
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no) versioned_doc=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for versioned-doc option) ;;
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esac], [versioned_doc=yes])dnl
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if test "${target}" = "NONE"; then
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*) AC_MSG_ERROR(This is libc for the avr target only!) ;;
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if test "${host}" = "NONE"; then
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if test "${build}" = "NONE"; then
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build=`${srcdir}/config.guess`
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dnl We may get other options which we don't document:
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dnl --with-target-subdir, --with-multisrctop, --with-multisubdir
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test -z "${with_target_subdir}" && with_target_subdir=.
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if test "${srcdir}" = "."; then
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if test "${with_target_subdir}" != "."; then
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avrlib_basedir="${srcdir}/${with_multisrctop}.."
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avrlib_basedir="${srcdir}/${with_multisrctop}"
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avrlib_basedir="${srcdir}"
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AC_SUBST(avrlib_basedir)
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# Determine the host, build, and target systems
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dnl NOTE: Don't put a '-' in the version number or rpm will puke
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dnl when building the package.
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AM_INIT_AUTOMAKE(avr-libc, 1.2.3)
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dnl AM_CONFIG_HEADER(version.h:version-h.in)
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AC_DEFINE(__AVRLIBC__,1)
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AC_DEFINE(__AVRLIBC_MINOR__,2)
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dnl Use the AC_CHECK_TOOL macro to find also cross tools
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AC_CHECK_TOOL(AS, as, as)
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AC_CHECK_TOOL(AR, ar, ar)
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AC_CHECK_TOOL(RANLIB, ranlib, ranlib)
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AC_CHECK_TOOL(CC, gcc, gcc)
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*) AC_MSG_ERROR(Wrong C compiler found; check the PATH!) ;;
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*) AC_MSG_ERROR(Wrong assembler found; check the PATH!) ;;
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*) AC_MSG_ERROR(Wrong archiver found; check the PATH!) ;;
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*) AC_MSG_ERROR(Wrong ranlib found; check the PATH!) ;;
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dnl troth/2002-07-12: The CHECK_DOXYGEN macro should be moved to a config
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dnl dir. I put it here until I figure out how to integrate the config dir.
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dnl @synopsis CHECK_DOXYGEN
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dnl This macro checks if doxygen is installed on the build system
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dnl @version Id: check_doxygen.m4,v 1.2 2002/02/10 23:22:40 troth Exp
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dnl @author Theodore A. Roth <troth@openavr.org>
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AC_DEFUN(CHECK_DOXYGEN,[dnl
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AC_MSG_CHECKING(for doxygen)
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dox_ver=`doxygen --version 2>/dev/null`
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if test "x$dox_ver" = "x"; then
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# FIXME: should also check for dox_ver >= 1.2.16
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if test "$ps_doc" = "yes"; then
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INSTALL_DOX_PS=install-dox-ps
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if test "$pdf_doc" = "yes"; then
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TARGET_DOX_PDF=dox-pdf
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INSTALL_DOX_PDF=install-dox-pdf
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if test "$html_doc" = "yes"; then
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TARGET_DOX_HTML=dox-html
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INSTALL_DOX_HTML=install-dox-html
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dnl The creation of man pages is a side-effect of the HTML
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dnl generation, so a different target is only needed for installation.
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if test "$man_doc" = "yes"; then
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TARGET_DOX_HTML=dox-html
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INSTALL_DOX_MAN=install-dox-man
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AC_SUBST(TARGET_DOX_PS)
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AC_SUBST(TARGET_DOX_PDF)
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AC_SUBST(TARGET_DOX_HTML)
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AC_SUBST(INSTALL_DOX_PS)
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AC_SUBST(INSTALL_DOX_PDF)
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AC_SUBST(INSTALL_DOX_HTML)
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AC_SUBST(INSTALL_DOX_MAN)
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dnl @synopsis CHECK_PNG_UTILS
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dnl This macro checks if pngtopnm and pnmtopng are installed. If they are not
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dnl installed we just fake it with "cat".
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dnl We use these in the dox to insert transparency into the png images as such:
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dnl $ pngtopnm foo.png > tmp.pnm
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dnl $ pnmtopng -transparent white tmp.pnm > foo.png
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dnl @version Id: check_doxygen.m4,v 1.2 2002/02/10 23:22:40 troth Exp
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dnl @author Theodore A. Roth <troth@openavr.org>
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AC_DEFUN(CHECK_PNG_UTILS,[dnl
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AC_MSG_CHECKING(for pngtopnm)
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has_pngtopnm=`pngtopnm --version 2>&1 | grep -c Version`
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if test "$has_pngtopnm" = "1"; then
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AC_MSG_CHECKING(for pngtopnm)
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has_pnmtopng=`pnmtopng --version 2>&1 | grep -c Version`
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if test "$has_pnmtopng" = "1"; then
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dnl pnmtopng will fail if the input file is a png instead of a pnm.
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if test "$PNMTOPNG" = "cat"; then
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if test "$versioned_doc" = "yes"; then
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DOC_INST_DIR='${DESTDIR}${datadir}/doc/avr-libc-$(VERSION)'
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AVR_LIBC_USER_MANUAL="avr-libc-user-manual-${VERSION}"
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DOC_INST_DIR='${DESTDIR}${datadir}/doc/avr-libc'
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AVR_LIBC_USER_MANUAL="avr-libc-user-manual"
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dnl Define this here so all files agree on the name of the manual.
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dnl This also centralizes the name so it's easier to change.
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AC_SUBST(AVR_LIBC_USER_MANUAL)
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AC_SUBST(DOC_INST_DIR)
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dnl Some devices are only handled by newer version of gcc. This macro lets us
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dnl probe to see if the installed avr-gcc supports a questionable device.
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CC=`echo "${CC}" | sed 's/-mmcu=avr.//'`
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AC_MSG_CHECKING(if ${CC} has support for $1)
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[has_dev_support=yes],
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if test "x$has_dev_support" = "xyes"
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AC_MSG_RESULT($has_dev_support)
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dnl we need to set some compiler switches according to the current
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dnl avr library configuration
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dnl FIXME: I am sure it is possible to use the original several -O, -mmcu and -g
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dnl switches, because the latest one is the one gcc will use.
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dnl If this is not true, we must change the content of CFLAGS and several
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dnl Maybe some else has more experience than I to check this.
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dnl I think also the -x option for the assembler is not necessary.
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dnl I have tried to find why objdump -x shows different outputs for files
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dnl compiled / assembled with the old Makefile and with this procedures.
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dnl Sorry, but I couldn't find the reason.
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dnl special flags for different sub-targets
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dnl optimize for speed on ATmega (lots of flash, but slower)
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dnl optimize for size on <=8K MCUs (not clear what is better: -O3 or -Os)
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avrlib_opt_space='-mcall-prologues -Os'
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avrlib_opt_speed='-O3'
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avrlib_defines='-D__COMPILING_AVR_LIBC__'
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if test -z "${with_multisubdir}"; then
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dnl default build directory -> avr1 and avr2
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avrlib_cflags="-mmcu=avr2 ${avrlib_opt_space}"
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avrlib_asflags='-mmcu=avr2'
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CHECK_AVR_DEVICE(attiny13)
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CHECK_AVR_DEVICE(attiny2313)
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AVR_CRT_AT90='crts1200.o crts2313.o crts2323.o crts2333.o crts2343.o \\\
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crts4414.o crts4433.o crts4434.o crts8515.o crts8535.o \\\
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AVR_CRT_TINY='crttn11.o crttn12.o crttn15.o crttn28.o crttn22.o crttn26.o'
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AVR_CRT_OTHER='crt86401.o'
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if test "x$HAS_attiny13" = "xyes"; then
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AVR_CRT_TINY="$AVR_CRT_TINY crttn13.o"
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if test "x$HAS_attiny2313" = "xyes"; then
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AVR_CRT_TINY="$AVR_CRT_TINY crttn2313.o"
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dnl We only want to build the docs for the default target case and only
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dnl if the user has passed "--enable-doc" to configure.
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if test "$enable_doc" = "yes"; then
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case $with_multisubdir in
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avr3) avrlib_cflags=${avrlib_opt_speed}
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avrlib_asflags='-mmcu=avr3'
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AVR_CRT_MEGA='crtm103.o'
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AVR_CRT_OTHER='crt43320.o crt43355.o crt76711.o'
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CHECK_AVR_DEVICE(atmega48)
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CHECK_AVR_DEVICE(atmega88)
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avrlib_cflags=${avrlib_opt_space}
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avrlib_asflags='-mmcu=avr4'
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AVR_CRT_MEGA='crtm8.o crtm8515.o crtm8535.o'
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if test "x$HAS_atmega48" = "xyes"; then
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AVR_CRT_MEGA="$AVR_CRT_MEGA crtm48.o"
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if test "x$HAS_atmega88" = "xyes"; then
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AVR_CRT_MEGA="$AVR_CRT_MEGA crtm88.o"
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CHECK_AVR_DEVICE(atmega165)
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CHECK_AVR_DEVICE(atmega168)
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CHECK_AVR_DEVICE(atmega325)
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CHECK_AVR_DEVICE(atmega3250)
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CHECK_AVR_DEVICE(atmega645)
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CHECK_AVR_DEVICE(atmega6450)
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CHECK_AVR_DEVICE(at90can128)
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avrlib_cflags=${avrlib_opt_speed}
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avrlib_asflags='-mmcu=avr5'
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AVR_CRT_MEGA='crtm161.o crtm162.o crtm163.o crtm169.o crtm323.o crtm128.o crtm16.o crtm32.o crtm64.o'
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if test "x$HAS_atmega165" = "xyes"; then
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AVR_CRT_MEGA="$AVR_CRT_MEGA crtm165.o"
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if test "x$HAS_atmega168" = "xyes"; then
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AVR_CRT_MEGA="$AVR_CRT_MEGA crtm168.o"
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if test "x$HAS_atmega325" = "xyes"; then
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AVR_CRT_MEGA="$AVR_CRT_MEGA crtm325.o"
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if test "x$HAS_atmega3250" = "xyes"; then
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AVR_CRT_MEGA="$AVR_CRT_MEGA crtm3250.o"
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if test "x$HAS_atmega645" = "xyes"; then
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AVR_CRT_MEGA="$AVR_CRT_MEGA crtm645.o"
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if test "x$HAS_atmega6450" = "xyes"; then
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AVR_CRT_MEGA="$AVR_CRT_MEGA crtm6450.o"
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AVR_CRT_OTHER='crtat94k.o'
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if test "x$HAS_at90can128" = "xyes"; then
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AVR_CRT_OTHER="$AVR_CRT_OTHER crtcan128.o"
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*) AC_MSG_ERROR(unexpected value '${with_multisubdir}' for with_multisubdir)
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AVRLIB_CFLAGS="-g -Wall -W -Wstrict-prototypes ${avrlib_defines} ${avrlib_cflags}"
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AC_SUBST(AVRLIB_CFLAGS)
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AVRLIB_ASFLAGS="-x assembler-with-cpp -Wa,-gstabs ${avrlib_defines} ${avrlib_asflags}"
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AC_SUBST(AVRLIB_ASFLAGS)
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AVR_CRT_ASFLAGS='-x assembler-with-cpp -Wa,-gstabs'
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AC_SUBST(AVR_CRT_ASFLAGS)
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AC_SUBST(AVR_CRT_AT90)
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AC_SUBST(AVR_CRT_TINY)
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AC_SUBST(AVR_CRT_MEGA)
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AC_SUBST(AVR_CRT_OTHER)
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dnl the includes for the avr libc
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INCLUDES='-I$(top_srcdir)/include -I$(top_srcdir)/common'
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if test "${multilib}" = "yes"; then
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multilib_arg="--enable-multilib"
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dnl the top Makefile must be the last of the list
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AC_OUTPUT(crt1/Makefile libc/Makefile libc/stdlib/Makefile
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libc/pmstring/Makefile libc/string/Makefile libc/misc/Makefile
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libm/Makefile libm/fplib/Makefile avr-libc.spec
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doc/Makefile doc/examples/Makefile
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doc/api/Makefile doc/api/doxygen.config
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scripts/Makefile scripts/avr-man
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[if test -n "$CONFIG_FILES"; then
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. ${avrlib_basedir}/config-ml.in
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with_multisubdir=${with_multisubdir}
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ac_configure_args="${multilib_arg} ${ac_configure_args}"
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CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
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avrlib_basedir=${avrlib_basedir}
added
removed
configure.in
