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configure.ac
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configure.ac
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# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
AC_PREREQ([2.69])
AC_INIT([RTnet],[m4_normalize(m4_include(config/autoconf/.version))],[rtnet-users@lists.sourceforge.net])
AC_CONFIG_HEADERS([config/rtnet_config_pre.h])
AC_CONFIG_AUX_DIR([config/autoconf])
AC_CONFIG_MACRO_DIR([config/m4])
AC_CONFIG_SRCDIR([stack/rtskb.c])
AC_PREFIX_DEFAULT([/usr/local/rtnet])
AC_CANONICAL_BUILD
AC_CANONICAL_HOST
AC_PROG_INSTALL
CFLAGS=${CFLAGS:--s}
# Checks for programs.
AC_ARG_WITH(CC,
AS_HELP_STRING([--with-cc=compiler], [use specific C compiler]),
[case "$withval" in
"" | y | ye | yes | n | no)
AC_MSG_ERROR([*** You must supply an argument to --with-cc.]) ;;
esac
CC="$withval"])
AC_PROG_CC
AC_DEFINE_UNQUOTED(CONFIG_RTNET_BUILD_STRING, "$build", [Build system alias])
RTNET_BUILD_STRING="$build"
AC_DEFINE_UNQUOTED(CONFIG_RTNET_HOST_STRING, "$host", [Host system alias])
RTNET_HOST_STRING="$host"
AC_SUBST(RTNET_HOST_STRING)
AC_DEFINE_UNQUOTED(CONFIG_RTNET_COMPILER, "`$CC -v 2>&1 | tail -n 1`" , [Compiler])
AM_INIT_AUTOMAKE([foreign no-exeext dist-bzip2 no-dist-gzip])
AM_MAINTAINER_MODE
LT_INIT
AM_PROG_AS
AC_SUBST(LD)
dnl ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
dnl ++++++++++++ copied from rtai 3.0 +++ start ++++++++++++++++++++++++++
dnl ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
case "$host" in
i*86*-*)
RTNET_TARGET_ARCH=i386
wanted_kernel_arch=CONFIG_X86
;;
x86_64-*)
RTNET_TARGET_ARCH=x86_64
wanted_kernel_arch=CONFIG_X86_64
;;
arm*-*)
RTNET_TARGET_ARCH=arm
wanted_kernel_arch=CONFIG_ARM
;;
powerpc-*|ppc-*)
RTNET_TARGET_ARCH=powerpc
wanted_kernel_arch=CONFIG_PPC
;;
# mips-*|mipsel-*)
# RTNET_TARGET_ARCH=mips
# wanted_kernel_arch=CONFIG_MIPS
# ;;
# cris-*)
# RTNET_TARGET_ARCH=cris
# dnl There is no non-ambiguous CONFIG_ETRAX|CRIS symbol
# dnl so use the root device definition.
# wanted_kernel_arch=CONFIG_ETRAX_ROOT_DEVICE
# ;;
*)
AC_MSG_ERROR([*** Sorry - Unsupported architecture])
;;
esac
dnl ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
dnl ++++++++++++ copied from rtai-3.0 +++ end ++++++++++++++++++++++++++++
dnl ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
#
# define helper function
#
AC_DEFUN([AC_CHECK_LIBRARY],
[ac_save_LIBS="$LIBS"
LIBS="$$3 $ac_save_LIBS"
AC_CHECK_LIB($1,$2)
$3=`echo "$LIBS" | sed "s% $ac_save_LIBS$%%"`
LIBS="$ac_save_LIBS"])
# Checks for libraries.
# FIXME: Replace `main' with a function in `-lncurses':
AC_CHECK_LIBRARY(ncurses, main, NCURSES_LIBS)
AM_CONDITIONAL(CONFIG_NCURSES,[test x"${NCURSES_LIBS}" != x""])
AC_SUBST(NCURSES_LIBS)
dnl ======================================================================
dnl Load the RTnet configuration.
dnl ======================================================================
RTNET_KCONFIG_FILE=$srcdir/defconfig
kconfig_type=default
AC_ARG_WITH(kconfig-file,
AS_HELP_STRING([--with-kconfig-file=<kconfig-file>], [KConfig parameter file]),
[
case "$withval" in
"" | y | ye | yes | n | no)
AC_MSG_ERROR([You must supply an argument to --with-kconfig-file.])
;;
esac
RTNET_KCONFIG_FILE="$withval"
kconfig_type=supplied
])
AC_MSG_CHECKING([for RTnet Kconfig file])
if test \! -f $RTNET_KCONFIG_FILE; then
AC_MSG_ERROR([Kconfig-file $RTNET_KCONFIG_FILE not found -- --with-kconfig-file sets Kconfig file])
fi
PATH=$PATH:. . $RTNET_KCONFIG_FILE
AC_MSG_RESULT([$RTNET_KCONFIG_FILE ($kconfig_type)])
dnl ======================================================================
dnl RT-extension installation
dnl ======================================================================
AC_ARG_WITH(rtext,
AS_HELP_STRING([--with-rtext=RT-EXTENSION], [installation path of RTAI or Xenomai 2.0.x]),
[case "${withval}" in
"" | y | ye | yes | n | no)
AC_MSG_ERROR([You must supply an argument to --with-rtext.]) ;;
*)
CONFIG_RTNET_RTEXT_DIR=${withval}
CONFIG_RTNET_RTEXT_CLASSIC=y
;;
esac])
dnl ======================================================================
dnl RT-FireWire installation
dnl ======================================================================
AC_ARG_WITH(rtfw,
AS_HELP_STRING([--with-rtfw=RTFW], [installation path of RT-FireWire]),
[case "${withval}" in
"" | y | ye | yes | n | no)
AC_MSG_ERROR([You must supply an argument to --with-rtfw.]) ;;
*)
CONFIG_RTNET_RTFIREWIRE_DIR=${withval} ;;
esac])
dnl ======================================================================
dnl try to find RT-extension / RT-extended kernel
dnl ======================================================================
AC_MSG_CHECKING([for RT-extension])
if test "${CONFIG_RTNET_RTEXT_CLASSIC}" = "y"; then
RTAI_CONFIG="${CONFIG_RTNET_RTEXT_DIR}/bin/rtai-config"
if test -x "${RTAI_CONFIG}"; then
RTAI_DIR="`cd ${CONFIG_RTNET_RTEXT_DIR} && pwd`" # let the shell normalize the path
XENO_DIR=""
AC_MSG_RESULT([${RTAI_DIR} (RTAI)])
else
XENO_CONFIG="${CONFIG_RTNET_RTEXT_DIR}/bin/xeno-config"
if test -x "${XENO_CONFIG}"; then
RTAI_DIR=""
XENO_DIR="`cd ${CONFIG_RTNET_RTEXT_DIR} && pwd`" # let the shell normalize the path
AC_MSG_RESULT([${XENO_DIR} (Xenomai 2.0.x)])
else
AC_MSG_ERROR([*** No RT-extension found in $CONFIG_RTNET_RTEXT_DIR])
fi
fi
else
RTAI_DIR=""
XENO_DIR=""
AC_ARG_WITH(linux,
AS_HELP_STRING([--with-linux=LINUX], [real-time extended Linux kernel]),
[case "${withval}" in
"" | y | ye | yes | n | no)
AC_MSG_ERROR([You must supply an argument to --with-linux.]) ;;
*)
CONFIG_RTNET_LINUX_DIR="`cd ${withval} && pwd`" ;; # let the shell normalize the path
esac])
# get linux kernel tree and version
RTEXT_LINUX_DIR="${CONFIG_RTNET_LINUX_DIR}"
if test -L ${RTEXT_LINUX_DIR}/source; then
RTEXT_LINUX_SRC_DIR="`cd ${RTEXT_LINUX_DIR}/source && pwd`"
else
RTEXT_LINUX_SRC_DIR=${RTEXT_LINUX_DIR}
fi
LINUX_RELEASE_FILE=${RTEXT_LINUX_DIR}/include/generated/utsrelease.h
if test \! -f $LINUX_RELEASE_FILE; then
LINUX_RELEASE_FILE=${RTEXT_LINUX_DIR}/include/linux/utsrelease.h
if test \! -f $LINUX_RELEASE_FILE; then
LINUX_RELEASE_FILE=${RTEXT_LINUX_DIR}/include/linux/version.h
fi
fi
RTEXT_LINUX_VERSION=`grep "#define UTS_RELEASE" $LINUX_RELEASE_FILE 2>/dev/null | sed -e 's/[^\"]*\"\([^\"]*\)\"/\1/'`
if test \! -f ${RTEXT_LINUX_SRC_DIR}/include/xenomai/nucleus/version.h; then
AC_MSG_ERROR([*** RT-extended kernel not found in $RTEXT_LINUX_DIR])
fi
AC_ARG_WITH(rtext-config,
AS_HELP_STRING([--with-rtext-config=CONFIG-PATH], [path of the RT-extension's config tool]),
[case "${withval}" in
"" | y | ye | yes | n | no)
AC_MSG_ERROR([You must supply an argument to --with-rtext-config.]) ;;
*)
CONFIG_RTNET_RTEXT_CONFIG_PATH=${withval} ;;
esac])
XENO_CONFIG=${CONFIG_RTNET_RTEXT_CONFIG_PATH}
if test "${XENO_CONFIG}" = ""; then
XENO_CONFIG=`which xeno-config 2>/dev/null`
if test "${XENO_CONFIG}" = "" && test "${CONFIG_RTNET_EXAMPLES}" \!= "y"; then
XENO_CONFIG="/bin/true"
fi
fi
if test "${XENO_CONFIG}" = "" || test \! -x ${XENO_CONFIG} || test \! -f ${XENO_CONFIG}; then
AC_MSG_ERROR([*** Xenomai configuration tool not found: ${XENO_CONFIG}])
fi
AC_MSG_RESULT([$RTEXT_LINUX_DIR (kernel ${RTEXT_LINUX_VERSION}${CONFIG_SMP:+-SMP} + Xenomai)])
fi
# Fixup real arch for powerpc
if test "${RTNET_TARGET_ARCH}" = "powerpc" ; then
AC_MSG_CHECKING([for real PowerPC arch])
readlink ${CONFIG_RTNET_LINUX_DIR}/include/asm | grep -q ppc && RTNET_TARGET_ARCH="ppc"
AC_MSG_RESULT([$RTNET_TARGET_ARCH])
fi
#
# from now we think we've found some RT-extension, so if we got an error
# it will be fatal, thus exit with AC_MSG_ERROR
#
XENO_VERSION=""
RTAI_VERSION=""
if test "$RTAI_DIR" \!= ""; then
AC_MSG_CHECKING([for RTAI version])
RTAI_VERSION="`${RTAI_CONFIG} --version`"
case "$RTAI_VERSION" in
magma | 3.[[3-9]]*)
CONFIG_RTNET_RTEXT_VERSION=rtai-3x
AC_DEFINE(CONFIG_RTAI_3x, 1, [We build for RTAI 3.x])
;;
*)
AC_MSG_ERROR([*** Unsupported RTAI version $RTAI_VERSION in $RTAI_DIR])
;;
esac
AC_MSG_RESULT([${RTAI_VERSION}])
AC_MSG_CHECKING([for RTAI config file])
RTAI_CONFIG_FILE="${RTAI_DIR}/share/rtai/config-rtai-${RTAI_VERSION}"
if test \! -f ${RTAI_CONFIG_FILE}; then
RTAI_CONFIG_FILE="`${RTAI_CONFIG} --config`"
if test \! -f $RTAI_CONFIG_FILE; then
AC_MSG_ERROR([*** RTAI configuration file not found])
fi
fi
AC_MSG_RESULT([${RTAI_CONFIG_FILE}])
# source (load) the rtai configuration
. ${RTAI_CONFIG_FILE}
# get linux kernel tree and version
AC_MSG_CHECKING([for Linux source tree])
RTEXT_LINUX_DIR="`${RTAI_CONFIG} --linux-dir`"
RTEXT_LINUX_VERSION="`${RTAI_CONFIG} --linux-version`"
AC_MSG_RESULT([$RTEXT_LINUX_DIR (kernel ${RTEXT_LINUX_VERSION}${CONFIG_SMP:+-SMP})])
elif test "$XENO_DIR" \!= ""; then
AC_MSG_CHECKING([for Xenomai version])
XENO_VERSION="`${XENO_CONFIG} --version`"
case "$XENO_VERSION" in
1.9.9 | 2.0*)
CONFIG_RTNET_RTEXT_VERSION=xeno-20x
AC_DEFINE(CONFIG_XENO_2_0x, 1, [We build for Xenomai 2.x])
AC_MSG_RESULT([${XENO_VERSION}])
;;
*)
AC_MSG_ERROR([*** Unsupported Xenomai version $XENO_VERSION in $XENO_DIR])
;;
esac
AC_MSG_CHECKING([for Xenomai config file])
XENO_CONFIG_FILE="`${XENO_CONFIG} --config`"
if test \! -f $XENO_CONFIG_FILE; then
AC_MSG_ERROR([*** Xenomai configuration file not found])
fi
AC_MSG_RESULT([${XENO_CONFIG_FILE}])
# source (load) the Xenomai configuration
. ${XENO_CONFIG_FILE}
# get linux kernel tree and version
AC_MSG_CHECKING([for Linux source tree])
RTEXT_LINUX_DIR="`${XENO_CONFIG} --linux-dir`"
RTEXT_LINUX_VERSION="`${XENO_CONFIG} --linux-version`"
AC_MSG_RESULT([$RTEXT_LINUX_DIR (kernel ${RTEXT_LINUX_VERSION}${CONFIG_SMP:+-SMP})])
else
AC_MSG_CHECKING([for Xenomai version])
XENO_VERSION=`grep "#define XENO_VERSION_STRING" ${RTEXT_LINUX_SRC_DIR}/include/xenomai/nucleus/version.h | sed -e 's/[^\"]*\"\([^\"]*\)\"/\1/'`
case "$XENO_VERSION" in
2.[[1-4]]*|2.5.[[01]])
CONFIG_RTNET_RTEXT_VERSION=xeno-21x
AC_DEFINE(CONFIG_XENO_2_1x, 1, [We build for Xenomai 2.x])
AC_MSG_RESULT([${XENO_VERSION}])
;;
2.5.[[2-9]]*|2.6*)
CONFIG_RTNET_RTEXT_VERSION=xeno-252
AC_DEFINE(CONFIG_XENO_2_1x, 1, [We build for Xenomai 2.x])
AC_MSG_RESULT([${XENO_VERSION}])
;;
*)
AC_MSG_ERROR([*** Unsupported Xenomai version $XENO_VERSION in $RTEXT_LINUX_DIR])
;;
esac
fi
#source (load) the kernel configuration
. ${RTEXT_LINUX_DIR}/.config
AM_CONDITIONAL(CONFIG_RTAI,[test "$RTAI_VERSION" \!= ""])
AM_CONDITIONAL(CONFIG_XENO,[test "$XENO_VERSION" \!= ""])
case "$CONFIG_RTNET_RTEXT_VERSION" in
rtai-3x) # ---> RTAI 3.x <---
# check for RTDM skin, needed by RTnet
AC_MSG_CHECKING([for RTDM skin])
case "${CONFIG_RTAI_RTDM}" in
y | m) AC_MSG_RESULT([${CONFIG_RTAI_RTDM}]) ;;
*) AC_MSG_ERROR([*** Please enable RTDM skin]) ;;
esac
# check for fifos, needed by rtnet-examples
# AC_MSG_CHECKING([for RTAI fifos])
# case "${CONFIG_RTAI_FIFOS}" in
# y | m) AC_MSG_RESULT([${CONFIG_RTAI_FIFOS}]) ;;
# *) AC_MSG_ERROR([*** Please enable fifos in RTAI]) ;;
# esac
;;
xeno-20x | xeno-21x | xeno-252) # ---> Xenomai 2.x <---
# check for RTDM skin, needed by RTnet
AC_MSG_CHECKING([for RTDM skin])
case "${CONFIG_XENO_SKIN_RTDM}" in
y | m) AC_MSG_RESULT([${CONFIG_XENO_SKIN_RTDM}]) ;;
*) AC_MSG_ERROR([*** Please enable RTDM skin]) ;;
esac
# check for pipes, needed by rtnet
# AC_MSG_CHECKING([for RTAI pipes])
# case "${CONFIG_RTAI_OPT_NATIVE_PIPE}" in
# y) AC_MSG_RESULT([${CONFIG_RTAI_OPT_NATIVE_PIPE}]) ;;
# *) AC_MSG_ERROR([*** Please enable pipes in RTAI]) ;;
# esac
;;
*) # ---> oops <----
AC_MSG_ERROR([*** internal error])
;;
esac
dnl =========== end of RT-extension detection ============================
dnl ======================================================================
dnl =========== try to find rt-firewire ==================================
dnl ======================================================================
#
# the presence of the symbols directory is a good indication for RT-FireWire
#
AC_MSG_CHECKING([for RT-FireWire installation])
RTFW_SYMBOLS="${CONFIG_RTNET_RTFIREWIRE_DIR}/symbols"
if test -d ${RTFW_SYMBOLS}; then
RTNET_RTFW_PREFIX="`echo ${CONFIG_RTNET_RTFIREWIRE_DIR} | sed -e s,[/]*$,,`" # strip trailing slashes
AC_MSG_RESULT([${RTNET_RTFW_PREFIX}])
else
AC_MSG_RESULT([none])
fi
dnl ======================================================================
dnl check linux version
dnl ======================================================================
case "${RTEXT_LINUX_VERSION}" in
2.4.*)
RTEXT_LINUX_VERSION_SUBLEVEL="`echo ${RTEXT_LINUX_VERSION}|sed -e 's/[[[:digit:]]]*\.[[[:digit:]]]*\.\([[[:digit:]]]*\).*/\1/'`"
if test ${RTEXT_LINUX_VERSION_SUBLEVEL} -le 18; then
AC_MSG_ERROR([*** Unsupported kernel version $RTEXT_LINUX_VERSION - please upgrade at least to 2.4.19])
fi
;;
2.6.* | 3.*)
;;
*)
AC_MSG_ERROR([*** Unsupported kernel version $RTEXT_LINUX_VERSION])
;;
esac
dnl ======================================================================
dnl import settings from RT-extensions
dnl ======================================================================
# kbuild (linux 2.6) or not
case "${RTEXT_LINUX_VERSION}" in
2.4.*)
unset CONFIG_KBUILD
;;
2.6.[[[:digit:]]] | 2.6.[[[:digit:]]].* | 2.6.1[[0123456]] | 2.6.1[[0123456]].*)
CONFIG_KBUILD=y
CONFIG_KBUILD_LEGACY=y
;;
2.6.17 | 2.6.17.*)
CONFIG_KBUILD=y
unset CONFIG_KBUILD_LEGACY
MODULE_SYMVERS=Modules.symvers
;;
2.6.* | 3.*)
CONFIG_KBUILD=y
unset CONFIG_KBUILD_LEGACY
MODULE_SYMVERS=Module.symvers
;;
*)
AC_MSG_ERROR([*** internal error])
;;
esac
AM_CONDITIONAL(CONFIG_KBUILD,[test "$CONFIG_KBUILD" = y])
RTNET_INTERNAL_USER_CFLAGS="-Wall -pipe -O2 -fstrict-aliasing"
# common stuff
case "${CONFIG_RTNET_RTEXT_VERSION}" in
rtai-3x)
RTEXT_USER_CFLAGS="`${RTAI_CONFIG} --lxrt-cflags`"
CONFIG_RTNET_RTEXT_ARCH="`${RTAI_CONFIG} --arch`"
RTEXT_LIBRARIES="`${RTAI_CONFIG} --library-dir`"
;;
xeno-20x)
RTEXT_USER_CFLAGS="`${XENO_CONFIG} --xeno-cflags`"
RTEXT_LIBRARIES="`${XENO_CONFIG} --library-dir`"
XNPOSIX_USER_CFLAGS="`${XENO_CONFIG} --posix-cflags`"
XNPOSIX_USER_LDFLAGS="`${XENO_CONFIG} --posix-ldflags`"
CONFIG_RTNET_RTEXT_ARCH="`${XENO_CONFIG} --arch`"
RTEXT_SYMBOLS="`${XENO_CONFIG} --symbol-dir`"
;;
xeno-21x)
RTEXT_USER_CFLAGS="`${XENO_CONFIG} --xeno-cflags` $RTNET_INTERNAL_USER_CFLAGS"
RTEXT_LIBRARIES="`${XENO_CONFIG} --library-dir`"
XNPOSIX_USER_CFLAGS="`${XENO_CONFIG} --posix-cflags` $RTNET_INTERNAL_USER_CFLAGS"
XNPOSIX_USER_LDFLAGS="`${XENO_CONFIG} --posix-ldflags`"
if test "`eval echo \\$$wanted_kernel_arch`" \!= ""; then
CONFIG_RTNET_RTEXT_ARCH="${RTNET_TARGET_ARCH}"
else
CONFIG_RTNET_RTEXT_ARCH="<something else>"
fi
;;
xeno-252)
RTEXT_USER_CFLAGS="`${XENO_CONFIG} --skin=native --cflags` $RTNET_INTERNAL_USER_CFLAGS"
RTEXT_LIBRARIES="`${XENO_CONFIG} --library-dir` -lxenomai"
XNPOSIX_USER_CFLAGS="`${XENO_CONFIG} --skin=posix --cflags` $RTNET_INTERNAL_USER_CFLAGS"
XNPOSIX_USER_LDFLAGS="`${XENO_CONFIG} --skin=posix --ldflags`"
if test "`eval echo \\$$wanted_kernel_arch`" \!= ""; then
CONFIG_RTNET_RTEXT_ARCH="${RTNET_TARGET_ARCH}"
else
CONFIG_RTNET_RTEXT_ARCH="<something else>"
fi
;;
*)
AC_MSG_ERROR([*** internal error])
;;
esac
if test "$CONFIG_KBUILD" = "y"; then
case "${CONFIG_RTNET_RTEXT_VERSION}" in
rtai-3x)
RTEXT_KMOD_CFLAGS="`${RTAI_CONFIG} --module-cflags`"
;;
xeno-20x)
RTEXT_KMOD_CFLAGS="`${XENO_CONFIG} --module-cflags`"
;;
xeno-21x | xeno-252)
RTEXT_KMOD_CFLAGS="-I${RTEXT_LINUX_SRC_DIR}/include/xenomai"
;;
*)
AC_MSG_ERROR([*** internal error])
;;
esac
else
case "${CONFIG_RTNET_RTEXT_VERSION}" in
rtai-3x)
RTEXT_KMOD_CFLAGS="`${RTAI_CONFIG} --module-cflags`"
;;
xeno-21x | xeno-252)
# Kernel cflags capturing trick from RTAI
kmod_cflags=`cd $srcdir/config/modules && make -s RTEXT_LINUX_DIR=$RTEXT_LINUX_DIR ARCH=$RTNET_TARGET_ARCH "CC=\"$CC\"" | grep '^RTEXT_KMOD_CFLAGS='`
eval $kmod_cflags
if test "$RTEXT_KMOD_CFLAGS" = ""; then
AC_MSG_ERROR([Unable to retrieve compilation flags for kernel modules out of $RTEXT_LINUX_DIR/Makefile])
fi
RTEXT_KMOD_CFLAGS="$RTEXT_KMOD_CFLAGS -DEXPORT_SYMTAB -I${RTEXT_LINUX_DIR}/include/xenomai -I${RTEXT_LINUX_DIR}/include/xenomai/compat"
;;
*)
AC_MSG_ERROR([*** internal error])
;;
esac
fi
dnl ======================================================================
dnl import RT-FireWire includes
dnl ======================================================================
RTFW_KMOD_CFLAGS="-I${RTNET_RTFW_PREFIX}/include"
dnl ======================================================================
dnl architecture tests....
dnl ======================================================================
AC_MSG_CHECKING([for RT-extension target arch])
AC_MSG_RESULT([${CONFIG_RTNET_RTEXT_ARCH}])
AC_MSG_CHECKING([for RTnet target arch])
AC_MSG_RESULT([${RTNET_TARGET_ARCH}])
if test x"${RTNET_TARGET_ARCH}" != x"${CONFIG_RTNET_RTEXT_ARCH}"; then
AC_MSG_ERROR([*** RT-extension and RTnet target architectures are not the same])
fi
AC_SUBST(RTNET_TARGET_ARCH)
dnl ======================================================================
dnl crosscompiling
dnl ======================================================================
AC_MSG_CHECKING([for CROSS_COMPILE])
if test "${CROSS_COMPILE}" = ""; then
CROSS_COMPILE="`echo ${CC} | sed s/gcc//`"
if test "${CROSS_COMPILE}gcc" \!= "${CC}"; then
CROSS_COMPILE=""
AC_MSG_RESULT([Cannot identify CROSS_COMPILE - assuming none - set manually if needed])
else
if test "${CROSS_COMPILE}" = ""; then
AC_MSG_RESULT([none])
else
AC_MSG_RESULT([${CROSS_COMPILE}])
fi
fi
else
AC_MSG_RESULT([${CROSS_COMPILE}])
fi
AC_SUBST(CROSS_COMPILE)
dnl ======================================================================
dnl decide to build for 2.4 or 2.6 kernel
dnl ======================================================================
if test x$CONFIG_KBUILD = x; then
RTNET_MODULE_EXT=.o
RTNET_KBUILD_ENV=
RTNET_KBUILD_CMD=
RTNET_KBUILD_CLEAN=
RTNET_KBUILD_DISTCLEAN=
else
RTNET_MODULE_EXT=.ko
RTNET_KBUILD_ENV='src2obj = $(patsubst %.$(1),%.o,$(filter %.$(1),$(call notdir,$(2))))'
RTNET_KBUILD_CMD="+@"
if test x$CONFIG_KBUILD_LEGACY = x; then
RTNET_KBUILD_CMD="$RTNET_KBUILD_CMD \
if test \\! -r $MODULE_SYMVERS; then \
\$(LN_S) \"\`cd \$(top_builddir) && pwd\`/$MODULE_SYMVERS\" .; \
fi; \
"
fi
RTNET_KBUILD_CMD="$RTNET_KBUILD_CMD \
for src in \$(filter-out FORCE, \$^); do \
if test \\! -r \`basename \$\$src\`; then \
\$(LN_S) \$\$src; \
fi; \
done; \
\$(MAKE) -C $RTEXT_LINUX_DIR \
CROSS_COMPILE=\"\$(CROSS_COMPILE)\" \
ARCH=\$(RTNET_TARGET_ARCH) \
M=\"\`pwd\`\" \
V=\$(V) \
rtext_kmod_cflags=\"\$(RTEXT_KMOD_CFLAGS)\" \
top_srcdir=\"\`cd \$(top_srcdir) && pwd\`\" \
top_builddir=\"\`cd \$(top_builddir) && pwd\`\" \
srcdir=\"\`cd \$(srcdir) && pwd\`\" \
build_objs='\$(call src2obj,c,\$^)' \
build_targets=\"\`for tgt in \${OBJS}; do basename \$\$tgt \
| sed -e's/\.ko/\.o /' | tr -d '\n'; done\`\" \
modules \
"
if test x$CONFIG_KBUILD_LEGACY = xy; then
RTNET_KBUILD_CMD="$RTNET_KBUILD_CMD \
MODVERDIR=\"\`cd \$(top_builddir) && pwd\`/symbols\" \
"
fi
RTNET_KBUILD_CLEAN=" \
\$(MAKE) -C $RTEXT_LINUX_DIR M=\"\`pwd\`\" clean; \
for src in \$^; do \
if test -h \`basename \$\$src\`; then \
rm -f \`basename \$\$src\`; \
fi; \
done; \
"
if test x$CONFIG_KBUILD_LEGACY = xy; then
RTNET_KBUILD_DISTCLEAN=" \
@for mod in \${OBJS}; do \
rm -f \`cd \$(top_builddir) && pwd\`/symbols/\`echo \$\$mod \
| sed -e's/${RTNET_MODULE_EXT}//'\`.mod; \
done; \
"
else
RTNET_KBUILD_DISTCLEAN=
fi
case "${CONFIG_RTNET_RTEXT_VERSION}" in
rtai-3x)
RTAI_MOD_SYMVER="`${RTAI_CONFIG} --module-dir`/Module.symvers"
if test -e ${RTAI_MOD_SYMVER} ; then
cp ${RTAI_MOD_SYMVER} ./
fi
;;
esac
fi
AC_MSG_CHECKING([for kernel module extension])
AC_MSG_RESULT([$RTNET_MODULE_EXT])
AC_SUBST(RTNET_MODULE_EXT)
AC_SUBST(RTNET_KBUILD_ENV)
AC_SUBST(RTNET_KBUILD_CMD)
AC_SUBST(RTNET_KBUILD_CLEAN)
AC_SUBST(RTNET_KBUILD_DISTCLEAN)
bs_kmodext=$RTNET_MODULE_EXT
bs_kcompile="make -C $RTEXT_LINUX_DIR ARCH=$RTNET_TARGET_ARCH CROSS_COMPILE=\"$CROSS_COMPILE\" V=1 M=`pwd` SUBDIRS=`pwd` modules"
dnl ======================================================================
dnl header checks
dnl ======================================================================
ac_save_CPPFLAGS="${CPPFLAGS}"
CPPFLAGS="${ac_save_CPPFLAGS} -D__KERNEL__ -I${RTEXT_LINUX_DIR}/include ${RTEXT_KMOD_CFLAGS}"
# Working around some Autoconf ugliness here: names of variables
# stored into the cache are canonicalized, turning /'s into _'s. So if
# you need to match X_Y.h and X/Y.h as different filenames, you are
# toast. Whichever comes first will be cached as "X_Y_h" and the
# second one will never get checked in the fs, but simply
# uncached. This applies to rtai_sem.h and rtai/sem.h for instance.
# To prevent this, we must only check a single set of non-conflicting
# headers, depending on the RTAI version which has been
# identified. (rpm)
if test "${CONFIG_KBUILD}" = "y"; then # building against linux-2.6
BS_CHECK_KHEADERS([rtdm/rtdm_driver.h],
[],
[AC_MSG_ERROR([*** header not found or working, please check RT-extension installation])],
[
#include <linux/kernel.h>
])
else # building against linux-2.4
CPPFLAGS="${CPPFLAGS} -D__KERNEL__ -I${RTEXT_LINUX_DIR}/include -I${RTEXT_LINUX_DIR}/include/xenomai/compat"
AC_CHECK_HEADERS([rtdm/rtdm_driver.h],
[],
[AC_MSG_ERROR([*** header not found or working, please check RT-extension installation])],
[
#include <linux/kernel.h>
])
fi
CPPFLAGS="${ac_save_CFLAGS}"
dnl ======================================================================
dnl Installation directory for modules
dnl ======================================================================
AC_MSG_CHECKING([for module installation directory])
AC_ARG_WITH(module-dir,
AS_HELP_STRING([--with-module-dir=<module-dir>], [Installation directory for modules]),
[case "${withval}" in
"" | y | ye | yes | n | no)
AC_MSG_ERROR([You must supply an argument to --with-module-dir.]) ;;
esac],
with_module_dir='${exec_prefix}/modules')
RTNET_MODULE_DIR="$with_module_dir"
AC_MSG_RESULT([$RTNET_MODULE_DIR])
AC_SUBST(RTNET_MODULE_DIR)
dnl ======================================================================
dnl check for LXRT
dnl ======================================================================
case "${CONFIG_RTNET_RTEXT_VERSION}" in
rtai-3x)
AC_MSG_CHECKING([for RTAI 3.x LXRT enabled])
case "${CONFIG_RTAI_SCHED_LXRT}" in
y | m) CONFIG_RTNET_LXRT=y ;;
*) CONFIG_RTNET_LXRT=n ;;
esac
AC_MSG_RESULT([${CONFIG_RTNET_LXRT}])
AC_MSG_CHECKING([for CONFIG_REGPARM activated in Linux Kernel])
if test "${CONFIG_RTNET_LXRT}" = "y" -a "${CONFIG_REGPARM}" = "y"; then
AC_MSG_WARN([
*** LXRT interface for RTnet disabled ***
Please unset CONFIG_RTNET_LXRT for
${RTEXT_LINUX_DIR}
and rebuild your kernel in order to build LXRT interface for RTNET
])
CONFIG_RTNET_LXRT=n
else
AC_MSG_RESULT([${CONFIG_REGPARM:-n}])
fi
;;
xeno-20x | xeno-21x | xeno-252) CONFIG_RTNET_LXRT=n
;;
*)
AC_MSG_ERROR([*** internal error])
;;
esac
AM_CONDITIONAL(CONFIG_RTNET_LXRT,[test "$CONFIG_RTNET_LXRT" = "y"])
if test "$CONFIG_RTNET_LXRT" = "y"; then
AC_DEFINE(CONFIG_RTNET_LXRT, 1, [RTAI LXRT])
fi
dnl ======================================================================
dnl determine select support
dnl ======================================================================
AC_MSG_CHECKING([whether to enable select-like support])
case "${CONFIG_RTNET_RTEXT_VERSION}" in
rtai-3x)
CONFIG_RTDM_SELECT=$CONFIG_RTAI_RTDM_SELECT
;;
xeno-*)
CONFIG_RTDM_SELECT=$CONFIG_XENO_OPT_RTDM_SELECT
;;
esac
if test "$CONFIG_RTDM_SELECT" = "y"; then
AC_DEFINE(CONFIG_RTNET_SELECT_SUPPORT, 1, [Select support])
fi
AC_MSG_RESULT([${CONFIG_RTDM_SELECT:-n}])
dnl ======================================================================
dnl network interface card driver
dnl ======================================================================
AC_MSG_CHECKING([whether to build Realtek 8139 driver])
AC_ARG_ENABLE(8139,
AS_HELP_STRING([--enable-8139], [build Realtek 8139 driver]),
[case "$enableval" in
y | yes) CONFIG_RTNET_DRV_8139=y ;;
*) CONFIG_RTNET_DRV_8139=n ;;
esac])
AC_MSG_RESULT([${CONFIG_RTNET_DRV_8139:-n}])
AM_CONDITIONAL(CONFIG_RTNET_DRV_8139,[test "$CONFIG_RTNET_DRV_8139" = "y"])
AC_MSG_CHECKING([whether to build Intel EtherExpressPro/100 driver])
AC_ARG_ENABLE(eepro100,
AS_HELP_STRING([--enable-eepro100], [build Intel EtherExpressPro/100 driver]),
[case "$enableval" in
y | yes) CONFIG_RTNET_DRV_EEPRO100=y ;;
*) CONFIG_RTNET_DRV_EEPRO100=n ;;
esac])
AC_MSG_RESULT([${CONFIG_RTNET_DRV_EEPRO100:-n}])
AM_CONDITIONAL(CONFIG_RTNET_DRV_EEPRO100,[test "$CONFIG_RTNET_DRV_EEPRO100" = "y"])
AC_MSG_CHECKING([for EEPRO/100 Command Timeout])
AC_ARG_ENABLE(eepro100-cmdtimeout,
AS_HELP_STRING([--enable-eepro100-cmdtimeout], [Set EEPRO/100 command timeout]),
[case "$enableval" in
[[[:digit:]]]*) CONFIG_RTNET_DRV_EEPRO100_CMDTIMEOUT=$enableval ;;
*) AC_MSG_ERROR([Bad argument to option: --enable-eepro100-cmdtimeout=<microseconds>]) ;;
esac])
if test x$CONFIG_RTNET_DRV_EEPRO100_CMDTIMEOUT = x ; then
CONFIG_RTNET_DRV_EEPRO100_CMDTIMEOUT=20
fi
AC_MSG_RESULT($CONFIG_RTNET_DRV_EEPRO100_CMDTIMEOUT us)
AC_DEFINE_UNQUOTED(CONFIG_RTNET_DRV_EEPRO100_CMDTIMEOUT,
$CONFIG_RTNET_DRV_EEPRO100_CMDTIMEOUT, [EEPRO/100 command timeout])
AC_MSG_CHECKING([whether to enble EEPRO/100 debugging])
AC_ARG_ENABLE(eepro100-dbg,
AS_HELP_STRING([--enable-eepro100-dbg], [enable EEPRO/100 debugging]),
[case "$enableval" in
y | yes) CONFIG_RTNET_DRV_EEPRO100_DBG=y ;;
*) CONFIG_RTNET_DRV_EEPRO100_DBG=n ;;
esac])
AC_MSG_RESULT([${CONFIG_RTNET_DRV_EEPRO100_DBG:-n}])
if test "$CONFIG_RTNET_DRV_EEPRO100_DBG" = "y"; then
AC_DEFINE(CONFIG_RTNET_DRV_EEPRO100_DBG, 1, [EEPRO/100 debugging])
fi
AC_MSG_CHECKING([whether to build AMD PCnet32 driver])
AC_ARG_ENABLE(pcnet32,
AS_HELP_STRING([--enable-pcnet32], [build AMD PCnet32 driver]),
[case "$enableval" in
y | yes) CONFIG_RTNET_DRV_PCNET32=y ;;
*) CONFIG_RTNET_DRV_PCNET32=n ;;
esac])
AC_MSG_RESULT([${CONFIG_RTNET_DRV_PCNET32:-n}])
AM_CONDITIONAL(CONFIG_RTNET_DRV_PCNET32,[test "$CONFIG_RTNET_DRV_PCNET32" = "y"])
AC_MSG_CHECKING([whether to build VIA Rhine driver])
AC_ARG_ENABLE(via-rhine,
AS_HELP_STRING([--enable-via-rhine], [build VIA Rhine driver]),
[case "$enableval" in
y | yes) CONFIG_RTNET_DRV_VIA_RHINE=y ;;
*) CONFIG_RTNET_DRV_VIA_RHINE=n ;;
esac])
AC_MSG_RESULT([${CONFIG_RTNET_DRV_VIA_RHINE:-n}])
AM_CONDITIONAL(CONFIG_RTNET_DRV_VIA_RHINE,[test "$CONFIG_RTNET_DRV_VIA_RHINE" = "y"])
AC_MSG_CHECKING([whether to build NatSemi driver])
AC_ARG_ENABLE(natsemi,
AS_HELP_STRING([--enable-natsemi], [build NatSemi driver]),
[case "$enableval" in
y | yes) CONFIG_RTNET_DRV_NATSEMI=y ;;
*) CONFIG_RTNET_DRV_NATSEMI=n ;;
esac])
AC_MSG_RESULT([${CONFIG_RTNET_DRV_NATSEMI:-n}])
AM_CONDITIONAL(CONFIG_RTNET_DRV_NATSEMI,[test "$CONFIG_RTNET_DRV_NATSEMI" = "y"])
AC_MSG_CHECKING([whether to build tulip driver])
AC_ARG_ENABLE(tulip,
AS_HELP_STRING([--enable-tulip], [build tulip driver]),
[case "$enableval" in
y | yes) CONFIG_RTNET_DRV_TULIP=y ;;
*) CONFIG_RTNET_DRV_TULIP=n ;;
esac])
AC_MSG_RESULT([${CONFIG_RTNET_DRV_TULIP:-n}])
AM_CONDITIONAL(CONFIG_RTNET_DRV_TULIP,[test "$CONFIG_RTNET_DRV_TULIP" = "y"])
AC_MSG_CHECKING([whether to build fcc enet driver])
AC_ARG_ENABLE(fcc-enet,
AS_HELP_STRING([--enable-fcc-enet], [build fcc enet driver]),
[case "$enableval" in
y | yes) CONFIG_RTNET_DRV_FCC_ENET=y ;;
*) CONFIG_RTNET_DRV_FCC_ENET=n ;;
esac])
AC_MSG_RESULT([${CONFIG_RTNET_DRV_FCC_ENET:-n}])
AM_CONDITIONAL(CONFIG_RTNET_DRV_FCC_ENET,[test "$CONFIG_RTNET_DRV_FCC_ENET" = "y"])
AC_MSG_CHECKING([whether to build scc enet driver])
AC_ARG_ENABLE(scc-enet,
AS_HELP_STRING([--enable-scc-enet], [build scc enet driver]),
[case "$enableval" in
y | yes) CONFIG_RTNET_DRV_SCC_ENET=y ;;
*) CONFIG_RTNET_DRV_SCC_ENET=n ;;
esac])
AC_MSG_RESULT([${CONFIG_RTNET_DRV_SCC_ENET:-n}])
AM_CONDITIONAL(CONFIG_RTNET_DRV_SCC_ENET,[test "$CONFIG_RTNET_DRV_SCC_ENET" = "y"])
AC_MSG_CHECKING([whether to build fec enet driver])
AC_ARG_ENABLE(fec-enet,
AS_HELP_STRING([--enable-fec-enet], [build fec enet driver]),
[case "$enableval" in
y | yes) CONFIG_RTNET_DRV_FEC_ENET=y ;;
*) CONFIG_RTNET_DRV_FEC_ENET=n ;;
esac])
AC_MSG_RESULT([${CONFIG_RTNET_DRV_FEC_ENET:-n}])
AM_CONDITIONAL(CONFIG_RTNET_DRV_FEC_ENET,[test "$CONFIG_RTNET_DRV_FEC_ENET" = "y"])
AC_MSG_CHECKING([whether to build MPC52xx fec driver])
AC_ARG_ENABLE(mpc52xx-fec,
AS_HELP_STRING([--enable-mpc52xx-fec], [build MPC52xx fec driver]),
[case "$enableval" in
y | yes) CONFIG_RTNET_DRV_MPC52XX_FEC=y ;;
*) CONFIG_RTNET_DRV_MPC52XX_FEC=n ;;
esac])
AC_MSG_RESULT([${CONFIG_RTNET_DRV_MPC52XX_FEC:-n}])
AM_CONDITIONAL(CONFIG_RTNET_DRV_MPC52XX_FEC,[test "$CONFIG_RTNET_DRV_MPC52XX_FEC" = "y"])
AC_MSG_CHECKING([whether to build fec enet driver])
AC_ARG_ENABLE(fec,
AS_HELP_STRING([--enable-fec], [build fec driver]),
[case "$enableval" in
y | yes) CONFIG_RTNET_DRV_FEC=y ;;
*) CONFIG_RTNET_DRV_FEC=n ;;
esac])
AC_MSG_RESULT([${CONFIG_RTNET_DRV_FEC:-n}])
AM_CONDITIONAL(CONFIG_RTNET_DRV_FEC,[test "$CONFIG_RTNET_DRV_FEC" = "y"])
AC_MSG_CHECKING([whether to build SMSC LAN91C111 driver])
AC_ARG_ENABLE(smc91111,
AS_HELP_STRING([--enable-smc91111], [build SMSC LAN91C111 driver]),
[case "$enableval" in
y | yes) CONFIG_RTNET_DRV_SMC91111=y ;;
*) CONFIG_RTNET_DRV_SMC91111=n ;;
esac])
AC_MSG_RESULT([${CONFIG_RTNET_DRV_SMC91111:-n}])
AM_CONDITIONAL(CONFIG_RTNET_DRV_SMC91111,[test "$CONFIG_RTNET_DRV_SMC91111" = "y"])
AC_MSG_CHECKING([whether to build MACB driver])
AC_ARG_ENABLE(macb,
AS_HELP_STRING([--enable-macb], [build MACB driver]),
[case "$enableval" in
y | yes) CONFIG_RTNET_DRV_MACB=y ;;
*) CONFIG_RTNET_DRV_MACB=n ;;
esac])
AC_MSG_RESULT([${CONFIG_RTNET_DRV_MACB:-n}])
AM_CONDITIONAL(CONFIG_RTNET_DRV_MACB,[test "$CONFIG_RTNET_DRV_MACB" = "y"])
AC_MSG_CHECKING([whether to build Eth1394 driver])
AC_ARG_ENABLE(eth1394,
AS_HELP_STRING([--enable-eth1394], [build Eth1394 driver]),
[case "$enableval" in
y | yes) CONFIG_RTNET_DRV_ETH1394=y ;;
*) CONFIG_RTNET_DRV_ETH1394=n ;;
esac])
AC_MSG_RESULT([${CONFIG_RTNET_DRV_ETH1394:-n}])
AM_CONDITIONAL(CONFIG_RTNET_DRV_ETH1394,[test "$CONFIG_RTNET_DRV_ETH1394" = "y"])
AC_MSG_CHECKING([whether to build loopback driver])
AC_ARG_ENABLE(loopback,
AS_HELP_STRING([--enable-loopback], [build loopback driver @<:@default=yes@:>@]),
[case "$enableval" in
y | yes) CONFIG_RTNET_DRV_LOOPBACK=y ;;
*) CONFIG_RTNET_DRV_LOOPBACK=n ;;
esac])
AC_MSG_RESULT([${CONFIG_RTNET_DRV_LOOPBACK:-n}])
AM_CONDITIONAL(CONFIG_RTNET_DRV_LOOPBACK,[test "$CONFIG_RTNET_DRV_LOOPBACK" = "y"])
if test "$CONFIG_RTNET_DRV_LOOPBACK" = "y"; then
AC_DEFINE(CONFIG_RTNET_DRV_LOOPBACK,1,[loopback driver])
fi
AC_MSG_CHECKING([whether to build 3Com 59x driver])
AC_ARG_ENABLE(3c59x,
AS_HELP_STRING([--enable-3c59x], [build 3Com 59x driver]),
[case "$enableval" in
y | yes) CONFIG_RTNET_DRV_3C59X=y ;;
*) CONFIG_RTNET_DRV_3C59X=n ;;
esac])
AC_MSG_RESULT([${CONFIG_RTNET_DRV_3C59X:-n}])
AM_CONDITIONAL(CONFIG_RTNET_DRV_3C59X,[test "$CONFIG_RTNET_DRV_3C59X" = "y"])
AC_MSG_CHECKING([whether to build Realtek 8169 (Gigabit) driver])
AC_ARG_ENABLE(r8169,
AS_HELP_STRING([--enable-r8169], [build Realtek 8169 (Gigabit) driver]),
[case "$enableval" in
y | yes) CONFIG_RTNET_DRV_R8169=y ;;
*) CONFIG_RTNET_DRV_R8169=n ;;
esac])
AC_MSG_RESULT([${CONFIG_RTNET_DRV_R8169:-n}])
AM_CONDITIONAL(CONFIG_RTNET_DRV_R8169,[test "$CONFIG_RTNET_DRV_R8169" = "y"])