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configure.ac
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configure.ac
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# Copyright (C) 2005-2017 The RTAI project
# This [file] is free software; the RTAI project
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.
dnl Process this file with autoconf to produce a configure script.
AC_PREREQ(2.59)
AC_INIT(rtai,5.1,rtai@rtai.org)
CONFIG_RTAI_VERSION_MAJOR=5
CONFIG_RTAI_VERSION_MINOR=0
CONFIG_RTAI_REVISION_LEVEL=2
AC_CONFIG_HEADERS(rtai_config.h)
AC_CONFIG_AUX_DIR(base/config/autoconf)
AC_CONFIG_SRCDIR(base/sched/sched.c)
AC_PREFIX_DEFAULT(/usr/realtime)
AC_CANONICAL_BUILD
AC_CANONICAL_HOST
AC_PROG_INSTALL
AC_ARG_WITH(CC,
[ --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"
])
dnl set only if undefined
if test x"$CROSS_COMPILE" = x ; then
CROSS_COMPILE=
using_crosscompile=n
else
using_crosscompile=y
fi
case "$host" in
m68knommu-*)
enable_shared=no
if test "$using_crosscompile" = y; then
LDFLAGS="-Wl,-elf2flt"
CROSSCOMPILE_TEST="tools/ucfront-gcc "$CROSS_COMPILE"gcc"
fi
;;
esac
AC_MSG_CHECKING([for CROSS_COMPILE])
AC_MSG_RESULT([$CROSS_COMPILE])
AC_PROG_CC
CFLAGS=""
AC_ARG_WITH(CXX,
[ --with-cxx=compiler use specific C++ compiler],
[ case "$withval" in
"" | y | ye | yes | n | no)
AC_MSG_ERROR([You must supply an argument to --with-cxx.])
;;
esac
CXX="$withval" ])
AC_PROG_CXX
CXXFLAGS=""
AC_DEFINE_UNQUOTED(CONFIG_RTAI_BUILD_STRING,"$build",[Build system alias])
RTAI_BUILD_STRING="$build"
AC_DEFINE_UNQUOTED(CONFIG_RTAI_HOST_STRING,"$host",[Host system alias])
RTAI_HOST_STRING="$host"
AC_DEFINE_UNQUOTED(CONFIG_RTAI_COMPILER,"`$CC -v 2>&1 | tail -n 1`",[Compiler])
AM_INIT_AUTOMAKE([foreign no-exeext dist-bzip2 subdir-objects])
AM_MAINTAINER_MODE
AC_PROG_LIBTOOL
AM_PROG_AS
dnl Find arch-specific requirements and supports. Features which
dnl are not supported by all archs must be listed here, so that a
dnl an Autoconf flag can later be defined/undefined in rtai_config.h.
arch_supports_lxrt=
arch_supports_leds=
arch_supports_sim=
arch_supports_rtailab=
arch_has_mmu=y
case "$host" in
i*86*-*)
RTAI_TARGET_ARCH=x86
RTAI_TARGET_SUBARCH=32
arch_supports_lxrt=y
arch_supports_leds=y
arch_supports_sim=y
arch_supports_rtailab=y
wanted_kernel_arch=CONFIG_X86_32
;;
x86_64*-*)
RTAI_TARGET_ARCH=x86
RTAI_TARGET_SUBARCH=64
arch_supports_lxrt=y
arch_supports_rtailab=n
wanted_kernel_arch=CONFIG_X86_64
;;
arm-*)
RTAI_TARGET_ARCH=arm
wanted_kernel_arch=CONFIG_ARM
;;
powerpc-*|ppc-*)
RTAI_TARGET_ARCH=ppc
wanted_kernel_arch=CONFIG_PPC
;;
m68knommu-*)
RTAI_TARGET_ARCH=m68k
wanted_kernel_arch=CONFIG_M68K
arch_has_mmu=
;;
m68k-*)
RTAI_TARGET_ARCH=m68k
wanted_kernel_arch=CONFIG_M68K
;;
*) echo ""
echo "*******************************************"
echo "Still unsupported host: $host -- Sorry."
echo "*******************************************"
echo ""
exit 1;;
esac
RTAI_INSTALL_DIR=
dnl
dnl Load the RTAI configuration.
dnl
RTAI_KCONFIG_FILE=$srcdir/base/arch/$RTAI_TARGET_ARCH/defconfig
kconfig_type=default
AC_ARG_WITH(kconfig-file,
[ --with-kconfig-file=<kconfig-file> KConfig parameter file],
[
case "$withval" in
"" | y | ye | yes | n | no)
AC_MSG_ERROR([You must supply an argument to --with-kconfig-file.])
;;
esac
RTAI_KCONFIG_FILE="$withval"
kconfig_type=supplied
])
AC_MSG_CHECKING([for RTAI Kconfig file])
if test \! -f $RTAI_KCONFIG_FILE; then
AC_MSG_ERROR([Kconfig-file $RTAI_KCONFIG_FILE not found -- --with-kconfig-file sets Kconfig file])
fi
. $RTAI_KCONFIG_FILE
AC_MSG_RESULT([$RTAI_KCONFIG_FILE ($kconfig_type)])
dnl
dnl Installation directory for modules
dnl
AC_MSG_CHECKING([for module installation directory])
AC_ARG_WITH(module-dir,
[ --with-module-dir=<module-dir> Installation directory for modules],
[
case "$withval" in
"" | y | ye | yes | n | no)
AC_MSG_ERROR([You must supply an argument to --with-module-dir.])
;;
esac
RTAI_MODULE_DIR="$withval"
])
dnl Are we building into the source tree?
if test "$srcdir" = `pwd`; then
CONFIG_RTAI_OLD_FASHIONED_BUILD=y
else
CONFIG_RTAI_OLD_FASHIONED_BUILD=
fi
dnl Set a default module dir if unspecified
if test "x" = "x$RTAI_MODULE_DIR"
then
RTAI_MODULE_DIR='${exec_prefix}/modules'
fi
AC_MSG_RESULT([$RTAI_MODULE_DIR])
CONFIG_RTAI_MODULE_DIR=$RTAI_MODULE_DIR
dnl
dnl Process the Linux kernel configuration
dnl
AC_MSG_CHECKING([for Linux source tree])
dnl CONFIG_MODULES has been forcibly set in RTAI's configuration
dnl file, therefore we must unset it before later checking if the kernel
dnl actually defined it as required too.
unset CONFIG_MODULES
dnl safe default
if test x$CONFIG_RTAI_LINUXDIR != x ; then
RTAI_LINUX_DIR=$CONFIG_RTAI_LINUXDIR
else
RTAI_LINUX_DIR="/usr/src/linux"
fi
AC_ARG_WITH(linux-dir,
[ --with-linux-dir=<linux-dir> RTAI-enabled Linux kernel tree],
[
case "$withval" in
"" )
if test x${CONFIG_RTAI_LINUXDIR} = x; then
AC_MSG_ERROR([You must supply an argument to --with-linux-dir.])
else
withval=${CONFIG_RTAI_LINUXDIR}
fi
;;
y | ye | yes | n | no)
AC_MSG_ERROR([You must supply an argument to --with-linux-dir.])
;;
esac
RTAI_LINUX_DIR="$withval"
])
if test x${RTAI_LINUX_DIR} = x; then
echo
AC_MSG_ERROR([Linux kernel tree not specified -- use --with-linux-dir])
fi
if test \! -r ${RTAI_LINUX_DIR}/Makefile; then
echo
AC_MSG_ERROR([No Linux kernel tree in ${RTAI_LINUX_DIR}])
fi
if grep KERNELSRC $RTAI_LINUX_DIR/Makefile > /dev/null; then
eval LINUX_`grep '^KERNELSRC' $RTAI_LINUX_DIR/Makefile | sed -e 's, ,,g'|sed -e 's,:,,g'`
eval LINUX_`grep '^KERNELOUTPUT' $RTAI_LINUX_DIR/Makefile | sed -e 's, ,,g'|sed -e 's,:,,g'`
elif grep '^MAKEARGS *:= *-C' $RTAI_LINUX_DIR/Makefile > /dev/null; then
LINUX_KERNELSRC=`sed -n -e 's,^MAKEARGS *:= *-C *\(@<:@^@<:@:space:@:>@@:>@*\).*,\1,p' $RTAI_LINUX_DIR/Makefile`
LINUX_KERNELOUTPUT=$RTAI_LINUX_DIR
else
LINUX_KERNELOUTPUT=$RTAI_LINUX_DIR
LINUX_KERNELSRC=$RTAI_LINUX_DIR
fi
eval linux_`grep '^EXTRAVERSION =' $LINUX_KERNELSRC/Makefile | sed -e 's, ,,g'`
eval linux_`grep '^PATCHLEVEL =' $LINUX_KERNELSRC/Makefile | sed -e 's, ,,g'`
eval linux_`grep '^SUBLEVEL =' $LINUX_KERNELSRC/Makefile | sed -e 's, ,,g'`
eval linux_`grep '^VERSION =' $LINUX_KERNELSRC/Makefile | sed -e 's, ,,g'`
dnl Load Linux kernel configuration now, before config symbols are tested.
if test \! -r ${LINUX_KERNELOUTPUT}/.config; then
AC_MSG_RESULT([invalid])
AC_MSG_ERROR([$LINUX_KERNELOUTPUT is not configured -- --with-linux-dir sets linux-dir])
fi
. $LINUX_KERNELOUTPUT/.config
RTAI_LINUX_VERSION="$linux_VERSION.$linux_PATCHLEVEL.$linux_SUBLEVEL"
AC_MSG_RESULT([$RTAI_LINUX_DIR (kernel ${RTAI_LINUX_VERSION}${CONFIG_SMP:+-SMP})])
if test x${CONFIG_RTAI_LINUXDIR} = x; then
CONFIG_RTAI_LINUXDIR=$RTAI_LINUX_DIR
fi
dnl
dnl define the name of the target arch (only matters for powerpc so far)
dnl
case $RTAI_TARGET_ARCH in
ppc|powerpc)
dnl $linux_VERSION.$linux_PATCHLEVEL.$linux_SUBLEVEL
if test $linux_VERSION -gt 2 ; then
ARCH_SUBDIR=powerpc
elif test $linux_VERSION -eq 2 -a $linux_PATCHLEVEL -lt 6 ; then
ARCH_SUBDIR=ppc
elif test "$linux_VERSION.$linux_PATCHLEVEL" = "2.6" \
-a $linux_SUBLEVEL -gt 28 ; then
ARCH_SUBDIR=powerpc
else
ARCH_SUBDIR=ppc
fi
RTAI_TARGET_ARCH_NAME=$ARCH_SUBDIR
;;
m68k)
if test x$arch_has_mmu = x; then
RTAI_TARGET_ARCH_NAME=m68knommu
else
RTAI_TARGET_ARCH_NAME=$RTAI_TARGET_ARCH
fi
;;
*)
RTAI_TARGET_ARCH_NAME=$RTAI_TARGET_ARCH
;;
esac
dnl
dnl Identify the base technology used.
dnl
unset CONFIG_RTAI_ADEOS
unset CONFIG_RTAI_IPIPE
AC_MSG_CHECKING([for RTAI base technology])
dnl we simply check for {adeos,ipipe}.h; whatever is available
dnl is used, regardless of the version of the Linux sources.
if test -r $LINUX_KERNELSRC/include/linux/adeos.h; then
AC_DEFINE(CONFIG_RTAI_ADEOS,1,[Use RTAI Adeos-oldgen HAL])
AC_MSG_RESULT([RTAI Adeos-oldgen HAL])
CONFIG_RTAI_ADEOS=y
elif test -r $LINUX_KERNELSRC/include/linux/ipipe.h; then
AC_DEFINE(CONFIG_RTAI_IPIPE,1,[Use RTAI Adeos-newgen HAL])
AC_MSG_RESULT([RTAI Adeos-newgen HAL])
CONFIG_RTAI_IPIPE=y
else
echo
AC_MSG_ERROR([HAL patch not applied/enabled in $LINUX_KERNELSRC])
fi
case "$RTAI_LINUX_VERSION" in
dnl 2.4.*)
dnl dnl by design, only RTAI Adeos-oldgen HAL is available with 2.4
dnl unset CONFIG_KBUILD
dnl ;;
dnl 2.6.*)
dnl dnl by design, RTAI Adeos-oldgen HAL is supported up to 2.6.12 included,
dnl dnl and RTAI Adeos-newgen HAL is supported since 2.6.13 included
dnl CONFIG_KBUILD=y
dnl ;;
3.*)
CONFIG_KBUILD=y
;;
4.*)
CONFIG_KBUILD=y
;;
*)
AC_MSG_ERROR([Unsupported kernel version $RTAI_LINUX_VERSION])
esac
dnl
dnl Perform a few sanity checks.
dnl
AC_MSG_CHECKING([for kernel architecture])
arch_select=`eval echo \\$$wanted_kernel_arch`
if test x$arch_select = x; then
AC_MSG_RESULT([FAIL])
echo
echo "************************************************************"
echo " The target RTAI architecture ($RTAI_TARGET_ARCH) does not match"
echo " the kernel architecture selected in $RTAI_LINUX_DIR"
echo " (i.e. $wanted_kernel_arch is undefined)"
echo "************************************************************"
exit 1
fi
AC_MSG_RESULT([$wanted_kernel_arch])
case "${RTAI_LINUX_VERSION}" in
2.4.*)
dnl MMU not supported in 2.4
;;
*)
AC_MSG_CHECKING([for MMU support])
mmu_select=`eval echo \\$CONFIG_MMU`
if test x$mmu_select != x$arch_has_mmu; then
echo
echo "************************************************************"
echo " The target RTAI architecture MMU check failed:"
if test x$mmu_select = x; then
echo " MMU is unsupported by Linux architecure, but it must."
else
echo " MMU is supported by Linux architecure, but it must not."
fi
echo "************************************************************"
exit 1
fi
if test x$mmu_select != x; then
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
;;
esac
if test x${CONFIG_MODULES} = x ; then
AC_MSG_ERROR([Please set CONFIG_MODULES for $RTAI_LINUX_DIR and rebuild your kernel])
fi
dnl No longer used.
dnl if test x${CONFIG_REGPARM} = xy ; then
dnl AC_MSG_ERROR([Please unset CONFIG_REGPARM for $RTAI_LINUX_DIR and
dnl rebuild your kernel])
dnl fi
if test x${CONFIG_MODVERSIONS} = xy ; then
case "${RTAI_LINUX_VERSION}" in
2.4.*)
AC_MSG_ERROR([Please unset CONFIG_MODVERSIONS for $RTAI_LINUX_DIR and rebuild your kernel])
;;
*)
dnl reported to be harmless in 2.6
;;
esac
fi
if test x${CONFIG_RTAI_ADEOS} = xy -a x${CONFIG_ADEOS_CORE} = x; then
AC_MSG_ERROR([Please activate the Adeos support in $RTAI_LINUX_DIR and rebuild your kernel])
fi
dnl
dnl Process the build options, possibly overriding the loaded
dnl configuration.
dnl
RTAI_BUILTIN_MODLIST=""
AC_MSG_CHECKING(for trace support)
AC_ARG_ENABLE(trace,
[ --enable-trace Enable trace support],
[case "$enableval" in
y | yes) CONFIG_RTAI_TRACE=y ;;
*) unset CONFIG_RTAI_TRACE ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_TRACE:-no})
if test x${CONFIG_RTAI_MATH} = xy; then
dnl Override Kconfig settings for now
CONFIG_RTAI_MATH=m
fi
AC_MSG_CHECKING(for math support)
AC_ARG_ENABLE(math,
[ --enable-math Enable math support],
[case "$enableval" in
y | yes | b | builtin | built-in) CONFIG_RTAI_MATH=y ;;
m | mod | module) CONFIG_RTAI_MATH=m ;;
*) unset CONFIG_RTAI_MATH ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_MATH:-no})
RTAI_MATH_LIBM=
if test x$CONFIG_RTAI_MATH = xy ; then
RTAI_BUILTIN_MODLIST="$RTAI_BUILTIN_MODLIST math"
fi
if test x$CONFIG_RTAI_MATH != x ; then
AC_MSG_CHECKING(for libm dir/file for math support)
AC_ARG_WITH(math-libm-dir,
[ --with-math-libm-dir libm dir/file for math support])
if test x"$CONFIG_RTAI_MATH_LIBM_DIR" = x ; then
dnl "safe" default?
RTAI_MATH_LIBM="/usr/lib/libm.a"
elif test -f "$CONFIG_RTAI_MATH_LIBM_DIR" ; then
RTAI_MATH_LIBM="$CONFIG_RTAI_MATH_LIBM_DIR"
elif test -d "$CONFIG_RTAI_MATH_LIBM_DIR" ; then
RTAI_MATH_LIBM="$CONFIG_RTAI_MATH_LIBM_DIR/libm.a"
else
AC_MSG_ERROR([Bad argument $withvar to --with-math-libm-dir])
fi
AC_MSG_RESULT([libm: $RTAI_MATH_LIBM])
fi
AC_MSG_CHECKING(for bits IPC support)
AC_ARG_ENABLE(bits,
[ --enable-bits Enable bits IPC support],
[case "$enableval" in
y | yes | b | builtin | built-in) CONFIG_RTAI_BITS=y ;;
m | mod | module) CONFIG_RTAI_BITS=m ;;
*) unset CONFIG_RTAI_BITS ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_BITS:-no})
if test x$CONFIG_RTAI_BITS = xy ; then
RTAI_BUILTIN_MODLIST="$RTAI_BUILTIN_MODLIST ipc/bits"
fi
AC_MSG_CHECKING(for real-time fifos support)
AC_ARG_ENABLE(fifos,
[ --enable-fifos Enable fifo IPC support],
[case "$enableval" in
y | yes | b | builtin | built-in) CONFIG_RTAI_FIFOS=y ;;
m | mod | module) CONFIG_RTAI_FIFOS=m ;;
*) unset CONFIG_RTAI_FIFOS ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_FIFOS:-no})
if test x$CONFIG_RTAI_FIFOS = xy ; then
RTAI_BUILTIN_MODLIST="$RTAI_BUILTIN_MODLIST ipc/fifos"
fi
AC_MSG_CHECKING(for netrpc support)
AC_ARG_ENABLE(netrpc,
[ --enable-netrpc Enable netrpc support],
[case "$enableval" in
y | yes | b | builtin | built-in) CONFIG_RTAI_NETRPC=y ;;
m | mod | module) CONFIG_RTAI_NETRPC=m ;;
*) unset CONFIG_RTAI_NETRPC ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_NETRPC:-no})
if test x$CONFIG_RTAI_NETRPC = xy ; then
RTAI_BUILTIN_MODLIST="$RTAI_BUILTIN_MODLIST ipc/netrpc"
fi
AC_MSG_CHECKING(for netrpc emulation of RTNet)
AC_ARG_ENABLE(netrpc-rtnet,
[ --enable-netrpc-rtnet Enable netrpc emulation of RTNet],
[case "$enableval" in
y | yes) CONFIG_RTAI_NETRPC_RTNET=y ;;
*) unset CONFIG_RTAI_NETRPC_RTNET ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_NETRPC_RTNET:-no})
AC_MSG_CHECKING(for semaphore support)
AC_ARG_ENABLE(sem,
[ --enable-sem Enable semaphore support],
[case "$enableval" in
y | yes | b | builtin | built-in) CONFIG_RTAI_SEM=y ;;
m | mod | module) CONFIG_RTAI_SEM=m ;;
*) unset CONFIG_RTAI_SEM ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_SEM:-no})
if test x$CONFIG_RTAI_SEM = xy ; then
RTAI_BUILTIN_MODLIST="$RTAI_BUILTIN_MODLIST ipc/sem"
fi
AC_MSG_CHECKING(for RT POLL support)
AC_ARG_ENABLE(rt-poll,
[ --enable-rt-poll enable polling support of RTAI IPCs],
[case "$enableval" in
y | yes) CONFIG_RTAI_RT_POLL=y ;;
*) unset CONFIG_RTAI_RT_POLL ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_RT_POLL:-no})
AC_MSG_CHECKING(for RT POLL on stack)
AC_ARG_ENABLE(rt-poll-on-stack,
[ --enable-rt-poll-on-stack Use the stack for rt_poll dynamic arrays],
[case "$enableval" in
y | yes) CONFIG_RTAI_RT_POLL_ON_STACK=y ;;
*) unset CONFIG_RTAI_RT_POLL_ON_STACK ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_RT_POLL_ON_STACK:-no})
AC_MSG_CHECKING(for messaging support)
AC_ARG_ENABLE(msg,
[ --enable-msg Enable messaging support],
[case "$enableval" in
y | yes | b | builtin | built-in) CONFIG_RTAI_MSG=y ;;
m | mod | module) CONFIG_RTAI_MSG=m ;;
*) unset CONFIG_RTAI_MSG ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_MSG:-no})
if test x$CONFIG_RTAI_MSG = xy ; then
RTAI_BUILTIN_MODLIST="$RTAI_BUILTIN_MODLIST ipc/msg"
fi
AC_MSG_CHECKING(for mailbox support)
AC_ARG_ENABLE(mbx,
[ --enable-mbx Enable mailbox support],
[case "$enableval" in
y | yes | b | builtin | built-in) CONFIG_RTAI_MBX=y ;;
m | mod | module) CONFIG_RTAI_MBX=m ;;
*) unset CONFIG_RTAI_MBX ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_MBX:-no})
if test x$CONFIG_RTAI_MBX = xy ; then
RTAI_BUILTIN_MODLIST="$RTAI_BUILTIN_MODLIST ipc/mbx"
fi
AC_MSG_CHECKING(for typed mailbox support)
AC_ARG_ENABLE(tbx,
[ --enable-tbx Enable typed mailbox support],
[case "$enableval" in
y | yes | b | builtin | built-in) CONFIG_RTAI_TBX=y ;;
m | mod | module) CONFIG_RTAI_TBX=m ;;
*) unset CONFIG_RTAI_TBX ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_TBX:-no})
if test x$CONFIG_RTAI_TBX = xy ; then
RTAI_BUILTIN_MODLIST="$RTAI_BUILTIN_MODLIST ipc/tbx"
fi
AC_MSG_CHECKING(for POSIX-like message queue support)
AC_ARG_ENABLE(mq,
[ --enable-mq Enable POSIX-like message queue support],
[case "$enableval" in
y | yes | b | builtin | built-in) CONFIG_RTAI_MQ=y ;;
m | mod | module) CONFIG_RTAI_MQ=m ;;
*) unset CONFIG_RTAI_MQ ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_MQ:-no})
if test x$CONFIG_RTAI_MQ = xy ; then
RTAI_BUILTIN_MODLIST="$RTAI_BUILTIN_MODLIST ipc/mq"
fi
AC_MSG_CHECKING(for shared memory support)
AC_ARG_ENABLE(shm,
[ --enable-shm Enable shared memory support],
[case "$enableval" in
y | yes | b | builtin | built-in) CONFIG_RTAI_SHM=y ;;
m | mod | module) CONFIG_RTAI_SHM=m ;;
*) unset CONFIG_RTAI_SHM ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_SHM:-no})
if test x$CONFIG_RTAI_SHM = xy ; then
RTAI_BUILTIN_MODLIST="$RTAI_BUILTIN_MODLIST ipc/shm"
fi
AC_MSG_CHECKING(for real-time malloc support)
AC_ARG_ENABLE(malloc,
[ --enable-malloc Enable real-time malloc support],
[case "$enableval" in
y | yes | b | builtin | built-in) CONFIG_RTAI_MALLOC=y ;;
m | mod | module) CONFIG_RTAI_MALLOC=m ;;
*) unset CONFIG_RTAI_MALLOC ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_MALLOC:-no})
if test x$CONFIG_RTAI_MALLOC = xy ; then
RTAI_BUILTIN_MODLIST="$RTAI_BUILTIN_MODLIST malloc"
fi
AC_MSG_CHECKING(for tasklets support)
AC_ARG_ENABLE(tasklets,
[ --enable-tasklets Enable tasklets support],
[case "$enableval" in
y | yes | b | builtin | built-in) CONFIG_RTAI_TASKLETS=y ;;
m | mod | module) CONFIG_RTAI_TASKLETS=m ;;
*) unset CONFIG_RTAI_TASKLETS ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_TASKLETS:-no})
if test x$CONFIG_RTAI_TASKLETS = xy ; then
RTAI_BUILTIN_MODLIST="$RTAI_BUILTIN_MODLIST tasklets"
fi
AC_MSG_CHECKING(for user-space interrupt support)
AC_ARG_ENABLE(usi,
[ --enable-usi Enable user-space interrupt support],
[case "$enableval" in
y | yes | b | builtin | built-in) CONFIG_RTAI_USI=y ;;
*) unset CONFIG_RTAI_USI ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_USI:-no})
AC_MSG_CHECKING(for watchdog support)
AC_ARG_ENABLE(watchdog,
[ --enable-watchdog Enable watchdog support],
[case "$enableval" in
y | yes | m | mod | module) CONFIG_RTAI_WD=m ;;
*) unset CONFIG_RTAI_WD ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_WD:-no})
dnl AC_MSG_CHECKING(for leds-based debugging support)
dnl AC_ARG_ENABLE(leds,
dnl [ --enable-leds Enable leds-based debugging support],
dnl [case "$enableval" in
dnl y | yes | b | builtin | built-in) CONFIG_RTAI_LEDS=y ;;
dnl m | mod | module) CONFIG_RTAI_LEDS=m ;;
dnl *) unset CONFIG_RTAI_LEDS ;;
dnl esac])
dnl AC_MSG_RESULT(${CONFIG_RTAI_LEDS:-no})
dnl
dnl if test x$CONFIG_RTAI_LEDS = xy ; then
dnl RTAI_BUILTIN_MODLIST="$RTAI_BUILTIN_MODLIST leds"
dnl fi
AC_MSG_CHECKING(whether LXRT wraps service calls through Linux syscalls)
AC_ARG_ENABLE(lxrt-use-linux-syscall,
[ --enable-lxrt-use-linux-syscall Wrap LXRT service calls throug Linux syscall mechanism],
[case "$enableval" in
y | yes) CONFIG_RTAI_LXRT_USE_LINUX_SYSCALL=y ;;
*) unset CONFIG_RTAI_LXRT_USE_LINUX_SYSCALL ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_LXRT_USE_LINUX_SYSCALL:-no})
dnl CONFIG_RTAI_KTASKS_SCHED_LXRT has to be forced
AC_ARG_ENABLE(ktasks-sched-lxrt,
[ --enable-ktasks-sched-lxrt Enable LXRT scheduler with kernel tasks support],
[case "$enableval" in
y | yes | m | mod | module) CONFIG_RTAI_KTASKS_SCHED_LXRT_=y ;;
*) echo "--enable-ktasks-sched-lxrt forced to \"yes\"" ; CONFIG_RTAI_KTASKS_SCHED_LXRT_=y ;;
esac])
AC_MSG_CHECKING(for scheduler lock in ISRs)
AC_ARG_ENABLE(sched-lock-isr,
[ --enable-sched-lock-isr Enable scheduler lock in ISRs],
[case "$enableval" in
y | yes) CONFIG_RTAI_SCHED_ISR_LOCK=y ;;
*) unset CONFIG_RTAI_SCHED_ISR_LOCK ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_SCHED_ISR_LOCK:-no})
AC_MSG_CHECKING(for RTC freq)
AC_ARG_ENABLE(rtc-freq,
[ --enable-rtc-freq Enable RTC freq],
[case "$enableval" in
changequote(,)dnl add a test for 0 or power of 2, <2-8192>
[0-9]*) CONFIG_RTAI_RTC_FREQ=$enableval ;;
changequote([,])dnl
*) AC_MSG_ERROR([Bad argument to option: --enable-rtc-freq=<power of 2>]) ;;
esac])
if test x$CONFIG_RTAI_RTC_FREQ = x ; then
# Use a reasonable default if unset
CONFIG_RTAI_RTC_FREQ=0
fi
AC_MSG_RESULT($CONFIG_RTAI_RTC_FREQ)
AC_MSG_CHECKING(for long timed lists)
AC_ARG_ENABLE(long-timed-lists,
[ --enable-long-timed-lists Enable long timed lists],
[case "$enableval" in
y | yes) CONFIG_RTAI_LONG_TIMED_LIST=y ;;
*) unset CONFIG_RTAI_LONG_TIMED_LIST;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_LONG_TIMED_LIST:-no})
AC_MSG_CHECKING(for using RTAI way for user-kernel space on stack args exchange)
AC_ARG_ENABLE(use-stack-args,
[ --enable-use-stack-args Keep using RTAI way for user-kernel space on stack args exchange],
[case "$enableval" in
y | yes) CONFIG_RTAI_USE_STACK_ARGS=y ;;
*) unset CONFIG_RTAI_USE_STACK_ARGS;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_USE_STACK_ARGS:-no})
AC_MSG_CHECKING(for latency self calibration metrics)
AC_ARG_ENABLE(latency-self-calibration-metrics,
[ --enable-latency-self-calibration-metrics Set latency self calibration metrics],
[case "$enableval" in
changequote(,)dnl
[1-3]*) CONFIG_RTAI_LATENCY_SELF_CALIBRATION_METRICS=$enableval ;;
changequote([,])dnl
*) AC_MSG_ERROR([Bad argument to option: --enable-latency-self-calibration-metrics=[1-3]]) ;;
esac])
if test x$CONFIG_RTAI_LATENCY_SELF_CALIBRATION_METRICS = x ; then
# Use a reasonable default if unset
CONFIG_RTAI_LATENCY_SELF_CALIBRATION_METRICS=1
fi
AC_MSG_RESULT($CONFIG_RTAI_LATENCY_SELF_CALIBRATION_METRICS)
AC_MSG_CHECKING(for latency self calibration freq)
AC_ARG_ENABLE(latency-self-calibration-freq,
[ --enable-latency-self-calibration-freq Set latency self calibration freq],
[case "$enableval" in
changequote(,)dnl
[0-9]*) CONFIG_RTAI_LATENCY_SELF_CALIBRATION_FREQ=$enableval ;;
changequote([,])dnl
*) AC_MSG_ERROR([Bad argument to option: --enable-latency-self-calibration-freq=<Hz>]) ;;
esac])
if test x$CONFIG_RTAI_LATENCY_SELF_CALIBRATION_FREQ = x ; then
# Use a reasonable default if unset
CONFIG_RTAI_LATENCY_SELF_CALIBRATION_FREQ=10000
fi
AC_MSG_RESULT($CONFIG_RTAI_LATENCY_SELF_CALIBRATION_FREQ)
AC_MSG_CHECKING(for latency self calibration cycles)
AC_ARG_ENABLE(latency-self-calibration-cycles,
[ --enable-latency-self-calibration-cycles Set latency self calibration cycles],
[case "$enableval" in
changequote(,)dnl
[0-9]*) CONFIG_RTAI_LATENCY_SELF_CALIBRATION_CYCLES=$enableval ;;
changequote([,])dnl
*) AC_MSG_ERROR([Bad argument to option: --enable-latency-self-calibration-cycles=<numcycles>]) ;;
esac])
if test x$CONFIG_RTAI_LATENCY_SELF_CALIBRATION_CYCLES = x ; then
# Use a reasonable default if unset
CONFIG_RTAI_LATENCY_SELF_CALIBRATION_CYCLES=$CONFIG_RTAI_LATENCY_SELF_CALIBRATION_FREQ
fi
AC_MSG_RESULT($CONFIG_RTAI_LATENCY_SELF_CALIBRATION_CYCLES)
AC_MSG_CHECKING(for user busy align ret delay)
AC_ARG_ENABLE(user-busy-align-ret-delay,
[ --user-busy-align-ret-delay Set user busy align ret delay],
[case "$enableval" in
changequote(,)dnl
[0-9]*) CONFIG_RTAI_USER_BUSY_ALIGN_RET_DELAY=$enableval ;;
changequote([,])dnl
*) AC_MSG_ERROR([Bad argument to option: --user-busy-align-ret-delay=<nanoseconds>]) ;;
esac])
if test x$CONFIG_RTAI_USER_BUSY_ALIGN_RET_DELAY = x ; then
# Use a reasonable default if unset
CONFIG_RTAI_USER_BUSY_ALIGN_RET_DELAY=0
fi
AC_MSG_RESULT($CONFIG_RTAI_USER_BUSY_ALIGN_RET_DELAY)
AC_MSG_CHECKING(for kernel busy align ret delay)
AC_ARG_ENABLE(kernel-busy-align-ret-delay,
[ --kernel-busy-align-ret-delay Set kernel busy align ret delay],
[case "$enableval" in
changequote(,)dnl
[0-9]*) CONFIG_RTAI_KERN_BUSY_ALIGN_RET_DELAY=$enableval ;;
changequote([,])dnl
*) AC_MSG_ERROR([Bad argument to option: --kernel-busy-align-ret-delay=<nanoseconds>]) ;;
esac])
if test x$CONFIG_RTAI_KERN_BUSY_ALIGN_RET_DELAY = x ; then
# Use a reasonable default if unset
CONFIG_RTAI_KERN_BUSY_ALIGN_RET_DELAY=0
fi
AC_MSG_RESULT($CONFIG_RTAI_KERN_BUSY_ALIGN_RET_DELAY)
AC_MSG_CHECKING(for maximum number of LXRT slots)
AC_ARG_ENABLE(sched-lxrt-numslots,
[ --enable-sched-lxrt-numslots Set maximum number of LXRT slots],
[case "$enableval" in
changequote(,)dnl
[0-9]*) CONFIG_RTAI_SCHED_LXRT_NUMSLOTS=$enableval ;;
changequote([,])dnl
*) AC_MSG_ERROR([Bad argument to option: --enable-sched-lxrt-numslots=<number>]) ;;
esac])
if test x$CONFIG_RTAI_SCHED_LXRT_NUMSLOTS = x ; then
# Use a reasonable default if unset
CONFIG_RTAI_SCHED_LXRT_NUMSLOTS=150
fi
AC_MSG_RESULT($CONFIG_RTAI_SCHED_LXRT_NUMSLOTS)
AC_MSG_CHECKING(for RTDM support)
AC_ARG_ENABLE(rtdm,
[ --enable-rtdm Enable RTDM support],
[case "$enableval" in
y | yes | b | builtin | built-in) CONFIG_RTAI_RTDM=y ;;
m | mod | module) CONFIG_RTAI_RTDM=m ;;
*) unset CONFIG_RTAI_RTDM ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_RTDM:-no})
AC_MSG_CHECKING(for maximum file descriptors in RTDM)
AC_ARG_ENABLE(rtdm-fd-max,
[ --enable-rtdm-fd-max Set maximum number of RTDM file descriptor slots],
[case "$enableval" in
changequote(,)dnl
[1-9][0-9]*) CONFIG_RTAI_RTDM_FD_MAX=$enableval ;;
changequote([,])dnl
*) AC_MSG_ERROR([Bad argument to option: --enable-rtdm-fd-max=<number>]) ;;
esac])
if test x$CONFIG_RTAI_RTDM_FD_MAX = x ; then
# Use a reasonable default if unset
CONFIG_RTAI_RTDM_FD_MAX=128
else
case $CONFIG_RTAI_RTDM_FD_MAX in
changequote(,)dnl
[1-9][0-9]*) ;;
changequote([,])dnl
*) AC_MSG_ERROR([Bad value $CONFIG_RTAI_RTDM_FD_MAX for RTAI_RTDM_FD_MAX]) ;;
esac
fi
AC_MSG_RESULT($CONFIG_RTAI_RTDM_FD_MAX)
AC_MSG_CHECKING(for shared interrupts in RTDM)
AC_ARG_ENABLE(rtdm-shirq,
[ --enable-rtdm-shirq Enable shared interrupts in RTDM],
[case "$enableval" in
y | yes) CONFIG_RTAI_RTDM_SHIRQ=y ;;
*) unset CONFIG_RTAI_RTDM_SHIRQ ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_RTDM_SHIRQ:-no})
AC_MSG_CHECKING(for select(2) support in RTDM)
AC_ARG_ENABLE(rtdm-select,
[ --enable-rtdm-select Enable select support in RTDM],
[case "$enableval" in
y | yes) CONFIG_RTAI_RTDM_SELECT=y ;;
*) unset CONFIG_RTAI_RTDM_SELECT ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_RTDM_SELECT:-no})
AC_MSG_CHECKING(for RTDM debug)
AC_ARG_ENABLE(debug-rtdm,
[ --enable-debug-rtdm Enable RTDM debug],
[case "$enableval" in
y | yes) CONFIG_RTAI_DEBUG_RTDM=y ;;
*) unset CONFIG_RTAI_DEBUG_RTDM ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_DEBUG_RTDM:-no})
AC_MSG_CHECKING(for task switch signal)
AC_ARG_ENABLE(task-switch-signal,
[ --enable-task-switch-signal Enable RTAI task switch signal],
[case "$enableval" in
y | yes) CONFIG_RTAI_TASK_SWITCH_SIGNAL=y ;;
*) unset CONFIG_RTAI_TASK_SWITCH_SIGNAL ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_TASK_SWITCH_SIGNAL:-no})
dnl AC_MSG_CHECKING(for hard-soft toggler)
dnl AC_ARG_ENABLE(hard-soft-toggler,
dnl [ --enable-hard-soft-toggler Enable RTAI hard-soft toggler],
dnl [case "$enableval" in
dnl y | yes) CONFIG_RTAI_HARD_SOFT_TOGGLER=y ;;
dnl *) unset CONFIG_RTAI_HARD_SOFT_TOGGLER ;;
dnl esac])
dnl AC_MSG_RESULT(${CONFIG_RTAI_HARD_SOFT_TOGGLER:-no})
AC_MSG_CHECKING(for Linux task priority alignment to RTAI)
AC_ARG_ENABLE(align-priority,
[ --enable-align-priority Keep Linux task priority aligned to RTAI],
[case "$enableval" in
y | yes) CONFIG_RTAI_ALIGN_LINUX_PRIORITY=y ;;
*) unset CONFIG_RTAI_ALIGN_LINUX_PRIORITY ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_ALIGN_LINUX_PRIORITY:-no})
AC_MSG_CHECKING(for in-kernel C++ support)
AC_ARG_ENABLE(cplusplus,
[ --enable-cplusplus Build in-kernel C++ support],
[case "$enableval" in
y | yes) CONFIG_RTAI_CPLUSPLUS=y ;;
*) unset CONFIG_RTAI_CPLUSPLUS ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_CPLUSPLUS:-no})
AC_MSG_CHECKING(for calibration frequency factor)
AC_ARG_ENABLE(cal-freq-fact,
[ --enable-cal-freq-fact Set calibration frequency factor],
[case "$enableval" in
changequote(,)dnl
[0-9]*) CONFIG_RTAI_CAL_FREQS_FACT=$enableval ;;
changequote([,])dnl
*) AC_MSG_ERROR([Bad argument to option: --enable-cal-freq-fact=<number>]) ;;
esac])
if test x$CONFIG_RTAI_CAL_FREQS_FACT = x ; then
# Use a reasonable default if unset
CONFIG_RTAI_CAL_FREQS_FACT=0
fi
AC_MSG_RESULT($CONFIG_RTAI_CAL_FREQS_FACT)
AC_MSG_CHECKING([if gcc accepts -fno-use-cxa-atexit])
save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="-fno-use-cxa-atexit -Werror"
AC_CACHE_VAL(ac_cv_accepts_cxa_atexit,
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
[AC_TRY_COMPILE([],
[int i = 0; return i; ],
[ac_cv_accepts_cxa_atexit=yes],
[ac_cv_accepts_cxa_atexit=no])]
AC_LANG_RESTORE)
AC_MSG_RESULT($ac_cv_accepts_cxa_atexit)
CXXFLAGS="$save_CXXFLAGS"
AC_MSG_CHECKING(for comedi support over LXRT)
AC_ARG_ENABLE(comedi-lxrt,
[ --enable-comedi-lxrt Enable comedi/LXRT support],
[case "$enableval" in
y | yes) CONFIG_RTAI_COMEDI_LXRT=y ;;
*) unset CONFIG_RTAI_COMEDI_LXRT ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_COMEDI_LXRT:-no})
CONFIG_RTAI_USE_LINUX_COMEDI=n
if test x$CONFIG_RTAI_COMEDI_LXRT = xy; then
SC_PATH_COMEDI($CONFIG_RTAI_COMEDI_DIR)
if test "${RTAI_LINUX_DIR}" = "${CONFIG_RTAI_COMEDI_DIR:0:${#RTAI_LINUX_DIR}}" ; then
CONFIG_RTAI_USE_LINUX_COMEDI=y
fi
fi
AC_MSG_CHECKING(for comedi lock)
AC_ARG_ENABLE(comedi-lock,
[ --enable-comedi-lock Enable comedi lock ],
[case "$enableval" in
y | yes) CONFIG_RTAI_USE_COMEDI_LOCK=y ;;
*) unset CONFIG_RTAI_USE_COMEDI_LOCK ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_USE_COMEDI_LOCK:-no})
AC_MSG_CHECKING(for real-time serial driver)
AC_ARG_ENABLE(serial,
[ --enable-serial Build real-time serial driver],
[case "$enableval" in
y | yes) CONFIG_RTAI_DRIVERS_SERIAL=y ;;
*) unset CONFIG_RTAI_DRIVERS_SERIAL ;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_DRIVERS_SERIAL:-no})
AC_MSG_CHECKING(for real-time serial driver)
AC_ARG_ENABLE(16550a,
[ --enable-16550a Build real-time serial driver],
[case "$enableval" in
y | yes) CONFIG_RTAI_DRIVERS_16550A=y ;;
*) unset CONFIG_RTAI_DRIVERS_16550A;;
esac])
AC_MSG_RESULT(${CONFIG_RTAI_DRIVERS_16550A:-no})
dnl Set default inline mode for LXRT as specified from
dnl Kconfig. Defaults to conditional inlining.