aclocal.m4

RTEMS (Real-Time Executive for Multiprocessor Systems) is a free open source real-time operating sys

        RTEMS_HOST=Linux
	;;
  i[[34567]]86-*freebsd*)         # unix "simulator" port
        RTEMS_HOST=FreeBSD
	;;
  i[[34567]]86-pc-cygwin*) 	# Cygwin is just enough unix like :)
        RTEMS_HOST=Cygwin
	;;
  sparc-sun-solaris*)           # unix "simulator" port
        RTEMS_HOST=Solaris
	;;
  *) 
	;;
esac
AC_SUBST(RTEMS_HOST)
])dnl

# Add --enable-maintainer-mode option to configure.
# From Jim Meyering

# Copyright 1996, 1998, 2000, 2001, 2002  Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.

# serial 2

AC_DEFUN([AM_MAINTAINER_MODE],
[AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
  dnl maintainer-mode is disabled by default
  AC_ARG_ENABLE(maintainer-mode,
[  --enable-maintainer-mode enable make rules and dependencies not useful
                          (and sometimes confusing) to the casual installer],
      USE_MAINTAINER_MODE=$enableval,
      USE_MAINTAINER_MODE=no)
  AC_MSG_RESULT([$USE_MAINTAINER_MODE])
  AM_CONDITIONAL(MAINTAINER_MODE, [test $USE_MAINTAINER_MODE = yes])
  MAINT=$MAINTAINER_MODE_TRUE
  AC_SUBST(MAINT)dnl
]
)

AU_DEFUN([jm_MAINTAINER_MODE], [AM_MAINTAINER_MODE])

dnl $Id: enable-cxx.m4,v 1.5.2.1 2004/08/18 07:23:00 ralf Exp $

AC_DEFUN([RTEMS_ENABLE_CXX],
[
AC_ARG_ENABLE(cxx,
[AC_HELP_STRING([--enable-cxx],
[enable C++ support and build the rtems++ library])],
[case "${enable_cxx}" in
  yes) RTEMS_HAS_CPLUSPLUS=yes ;;
  no) RTEMS_HAS_CPLUSPLUS=no   ;;
  *)  AC_MSG_ERROR(bad value ${enableval} for enable-cxx option) ;;
esac], [RTEMS_HAS_CPLUSPLUS=no])
])

dnl $Id: env-rtemsbsp.m4,v 1.10.2.1 2004/08/18 07:23:00 ralf Exp $

dnl Pass a single BSP via an environment variable
dnl used by per BSP configure scripts
AC_DEFUN([RTEMS_ENV_RTEMSBSP],
[dnl
AC_BEFORE([$0], [RTEMS_ENABLE_RTEMSBSP])dnl
AC_BEFORE([$0], [RTEMS_PROJECT_ROOT])dnl
AC_BEFORE([$0], [RTEMS_CHECK_CUSTOM_BSP])dnl

AC_ARG_VAR([CPU_CFLAGS],[CFLAGS specifying CPU-dependent features])
AC_ARG_VAR([CFLAGS_OPTIMIZE_V],[CFLAGS for building the OPTIMIZE variant])
AC_ARG_VAR([CFLAGS_DEBUG_V],[CFLAGS for building the DEBUG variant])
AC_ARG_VAR([CFLAGS_PROFILE_V],[CFLAGS for building the PROFILE variant])
AC_ARG_VAR([RTEMS_BSP_FAMILY],[RTEMS's BSP directory])
AC_ARG_VAR([RTEMS_CPU_MODEL],[RTEMS's cpu model])

AC_ARG_VAR([RTEMS_BSP],[RTEMS_BSP to build])
AC_MSG_CHECKING([for RTEMS_BSP])
AC_CACHE_VAL(rtems_cv_RTEMS_BSP,
[dnl
  test -n "${RTEMS_BSP}" && rtems_cv_RTEMS_BSP="$RTEMS_BSP";
])dnl
if test -z "$rtems_cv_RTEMS_BSP"; then
  AC_MSG_ERROR([Missing RTEMS_BSP])
fi
RTEMS_BSP="$rtems_cv_RTEMS_BSP"
AC_MSG_RESULT(${RTEMS_BSP})
AC_SUBST(RTEMS_BSP)

RTEMS_BSP_SPECS="-specs bsp_specs -qrtems"
AC_SUBST(RTEMS_BSP_SPECS)

GCC_SPECS="-B\$(PROJECT_ROOT)/lib/ -B\$(PROJECT_ROOT)/$RTEMS_BSP/lib/"
AC_SUBST(GCC_SPECS)

PROJECT_INCLUDE="\$(PROJECT_ROOT)/$RTEMS_BSP/lib/include"
AC_SUBST(PROJECT_INCLUDE)

PROJECT_RELEASE="\$(PROJECT_ROOT)/$RTEMS_BSP"   
AC_SUBST(PROJECT_RELEASE)

RTEMS_ROOT="\$(PROJECT_ROOT)/c/$RTEMS_BSP"
AC_SUBST(RTEMS_ROOT)

RTEMS_ENABLE_BARE
AC_SUBST(BARE_CPU_MODEL)
AC_SUBST(BARE_CPU_CFLAGS)

AM_CONDITIONAL([MULTILIB],[false])

includedir="\${exec_prefix}/${RTEMS_BSP}/lib/include"
libdir="\${exec_prefix}/${RTEMS_BSP}/lib"

bsplibdir="\${exec_prefix}/${RTEMS_BSP}/lib"
AC_SUBST(bsplibdir)
])

dnl $Id: enable-rtemsbsp.m4,v 1.12.2.1 2004/08/18 07:23:00 ralf Exp $

dnl Override the set of BSPs to be built.
dnl used by the toplevel configure script
dnl RTEMS_ENABLE_RTEMSBSP(rtems_bsp_list)
AC_DEFUN([RTEMS_ENABLE_RTEMSBSP],
[
AC_BEFORE([$0], [RTEMS_ENV_RTEMSBSP])
AC_ARG_ENABLE(rtemsbsp,
[AC_HELP_STRING([--enable-rtemsbsp="bsp1 bsp2 .."],
[BSPs to include in build])],
[case "${enableval}" in
  yes|no) AC_MSG_ERROR([missing argument to --enable-rtemsbsp="bsp1 bsp2"]);;
  *) $1=$enableval;;
esac],[$1=""])
])

dnl
dnl $Id: project-root.m4,v 1.6.4.1 2004/08/18 07:23:00 ralf Exp $
dnl 

dnl
dnl PROJECT_TOPdir     .. relative path to the top of the build-tree
dnl PROJECT_ROOT       .. relative path to the top of the temporary
dnl                       installation directory inside the build-tree
dnl RTEMS_TOPdir       .. relative path of a subpackage's configure.in to the
dnl                       toplevel configure.in of the source-tree
dnl RTEMS_ROOT         .. path to the top of a bsp's build directory
dnl                       [Applied by custom/*.cfg, depredicated otherwise]
dnl

AC_DEFUN([RTEMS_PROJECT_ROOT],
[dnl
AC_REQUIRE([RTEMS_TOP])

PACKHEX="\$(PROJECT_TOPdir)/tools/build/packhex"
AC_SUBST(PACKHEX)
])


dnl $Id: check-custom-bsp.m4,v 1.1.2.1 2004/08/18 07:23:00 ralf Exp $

AC_DEFUN([RTEMS_CHECK_CUSTOM_BSP],[
AC_REQUIRE([RTEMS_TOP])

AC_MSG_CHECKING([for make/custom/[$]$1.cfg])
AS_IF([test -r "$srcdir/$RTEMS_TOPdir/make/custom/[$]$1.cfg"],
  [AC_MSG_RESULT([yes])],
  [AC_MSG_ERROR([no])])
])

AC_DEFUN([RTEMS_ENABLE_BARE],
[
AC_ARG_ENABLE(bare-cpu-cflags,
[AC_HELP_STRING([--enable-bare-cpu-cflags],
[specify a particular cpu cflag (bare bsp specific)])],
[case "${enableval}" in
  no) BARE_CPU_CFLAGS="" ;;
  *)    BARE_CPU_CFLAGS="${enableval}" ;;
esac],
[BARE_CPU_CFLAGS=""])

AC_ARG_ENABLE(bare-cpu-model,
[AC_HELP_STRING([--enable-bare-cpu-model],
[specify a particular cpu model (bare bsp specific)])],
[case "${enableval}" in
  no)   BARE_CPU_MODEL="" ;;
  *)    BARE_CPU_MODEL="${enableval}" ;;
esac],
[BARE_CPU_MODEL=""])
])


dnl $Id: check-cpu.m4,v 1.6.2.1 2004/08/18 07:23:00 ralf Exp $

dnl check if RTEMS support a cpu
AC_DEFUN([RTEMS_CHECK_CPU],
[dnl
AC_REQUIRE([RTEMS_TOP])
AC_REQUIRE([RTEMS_CANONICAL_TARGET_CPU])

# Is this a supported CPU?
AC_MSG_CHECKING([if cpu $RTEMS_CPU is supported])
# FIXME: Temporary hack
if test -d "$srcdir/$RTEMS_TOPdir/cpukit/score/cpu/$RTEMS_CPU"; then
  AC_MSG_RESULT(yes)
else
  AC_MSG_ERROR(no)
fi
])dnl


dnl $Id: check-cxx.m4,v 1.4.6.2 2004/08/18 07:23:00 ralf Exp $
dnl
AC_DEFUN([RTEMS_CHECK_CXX],
[dnl
AC_REQUIRE([RTEMS_CHECK_CPU])dnl
AC_REQUIRE([RTEMS_PROG_CC_FOR_TARGET])dnl
AC_REQUIRE([RTEMS_PROG_CXX_FOR_TARGET])dnl
AC_CACHE_CHECK([whether to build rtems++],
  rtems_cv_HAS_CPLUSPLUS,
  [ if test "$RTEMS_HAS_CPLUSPLUS" = "yes"; then
      if test -n "$CXX"; then
        rtems_cv_HAS_CPLUSPLUS="yes"
      else
        rtems_cv_HAS_CPLUSPLUS="no"
      fi
    else
      rtems_cv_HAS_CPLUSPLUS="no"
    fi])
HAS_CPLUSPLUS="$rtems_cv_HAS_CPLUSPLUS";
AC_SUBST(HAS_CPLUSPLUS)dnl

if test "$HAS_CPLUSPLUS" = "yes"; then
CPLUS_LD_LIBS='$(PROJECT_RELEASE)/lib/librtems++$(LIB_VARIANT).a'
fi
AC_SUBST(CPLUS_LD_LIBS)
])

dnl
dnl $Id: prog-cc.m4,v 1.18.2.2 2004/08/18 07:23:00 ralf Exp $
dnl 
dnl Check for target gcc
dnl

AC_DEFUN([RTEMS_PROG_CC],
[
AC_BEFORE([$0], [AC_PROG_CPP])dnl
AC_BEFORE([$0], [AC_PROG_CC])dnl
AC_BEFORE([$0], [RTEMS_CANONICALIZE_TOOLS])dnl

_RTEMS_FLAGS([CFLAGS],
  ["\$(CPU_CFLAGS) \$(RTEMS_CFLAGS_\$(VARIANT_V)_V) \$(CFLAGS_\$(VARIANT_V)_V) -g"])

RTEMS_CHECK_TOOL(CC,gcc)
test -z "$CC" && \
  AC_MSG_ERROR([no acceptable cc found in \$PATH])
AC_PROG_CC
AC_PROG_CPP

AM_CONDITIONAL(RTEMS_USE_GCC,test x"$GCC" = x"yes")
])

AC_DEFUN([RTEMS_PROG_CC_FOR_TARGET],
[
dnl check target cc
RTEMS_PROG_CC
dnl check if the compiler supports -isystem
RTEMS_GCC_ISYSTEM
dnl check if the target compiler may use --pipe
RTEMS_GCC_PIPE
test "$rtems_cv_gcc_pipe" = "yes" && CC="$CC --pipe"

dnl check if the compiler supports --specs
RTEMS_GCC_SPECS

if test "$GCC" = yes; then
RTEMS_CFLAGS="$RTEMS_CFLAGS -Wall"
m4_if([$1],,[],[RTEMS_CFLAGS="$RTEMS_CFLAGS $1"])
fi

AS_IF([test x"$rtems_cv_gcc_isystem" = x"yes"],[
  RTEMS_CPPFLAGS="-isystem \$(PROJECT_INCLUDE)"],[
  RTEMS_CPPFLAGS="-I\$(PROJECT_INCLUDE)"
])
AC_SUBST(RTEMS_CPPFLAGS)
])

dnl
dnl $Id: canonicalize-tools.m4,v 1.16.2.1 2004/08/18 07:23:00 ralf Exp $
dnl
dnl Set target tools
dnl

AC_DEFUN([RTEMS_CANONICALIZE_TOOLS],
[AC_REQUIRE([RTEMS_PROG_CC])dnl

dnl FIXME: What shall be done if these tools are not available?
  RTEMS_CHECK_TOOL(AR,ar,no)
  RTEMS_CHECK_TOOL(AS,as,no)
  RTEMS_CHECK_TOOL(LD,ld,no)
  RTEMS_CHECK_TOOL(NM,nm,no)

dnl special treatment of ranlib
  RTEMS_CHECK_TOOL(RANLIB,ranlib,:)

dnl NOTE: These may not be available if not using gnutools
  RTEMS_CHECK_TOOL(OBJCOPY,objcopy,no)
  RTEMS_CHECK_TOOL(SIZE,size,no)
  RTEMS_CHECK_TOOL(STRIP,strip,:)
])

dnl $Id: check-tool.m4,v 1.2.4.1 2004/08/18 07:23:00 ralf Exp $

dnl RTEMS_CHECK_TOOL(VARIABLE, PROG-TO-CHECK-FOR[, VALUE-IF-NOT-FOUND [, PATH]])
AC_DEFUN([RTEMS_CHECK_TOOL],
[
  AS_IF([test "x$build_alias" != "x$host_alias"],
    [rtems_tool_prefix=${ac_tool_prefix}])
  AC_CHECK_PROG($1, ${rtems_tool_prefix}$2, ${rtems_tool_prefix}$2, $3, $4)
])


AC_DEFUN([_RTEMS_FLAGS],[
AS_IF([test -n "[$]{$1}"],
  [RTEMS_$1=[$]{$1}],
  [RTEMS_$1=$2])
AC_SUBST([RTEMS_$1])
])

dnl
dnl $Id: gcc-isystem.m4,v 1.1.2.2 2004/08/18 07:23:00 ralf Exp $
dnl
dnl Check whether the gcc accepts -isystem
dnl

AC_DEFUN([RTEMS_GCC_ISYSTEM],
[AC_REQUIRE([RTEMS_PROG_CC])
AC_CACHE_CHECK(whether $CC accepts -isystem,rtems_cv_gcc_isystem,
[
rtems_cv_gcc_isystem=no
if test x"$GCC" = x"yes"; then
cat << EOF > conftest.h
int conftest123();
EOF
cat << EOF > conftest.c
#include <conftest.h>
int conftest123() {}
EOF
  if test -z "`${CC} -isystem./ -c conftest.c 2>&1`";then
    rtems_cv_gcc_isystem=yes
  fi
fi
rm -f conftest*
])])

dnl
dnl $Id: gcc-pipe.m4,v 1.8.6.1 2004/08/18 07:23:00 ralf Exp $
dnl
dnl Check whether the target compiler accepts -pipe
dnl

AC_DEFUN([RTEMS_GCC_PIPE],
[AC_REQUIRE([RTEMS_PROG_CC]) 
AC_REQUIRE([AC_CANONICAL_HOST])
AC_CACHE_CHECK(whether $CC accepts --pipe,rtems_cv_gcc_pipe,
[
rtems_cv_gcc_pipe=no
if test x"$GCC" = x"yes"; then
    echo 'void f(){}' >conftest.c
    if test -z "`${CC} --pipe -c conftest.c 2>&1`";then
      rtems_cv_gcc_pipe=yes
    fi
    rm -f conftest*
fi
])
])

dnl
dnl $Id: gcc-specs.m4,v 1.5.6.1 2004/08/18 07:23:00 ralf Exp $
dnl
dnl Check whether the target compiler accepts -specs
dnl

AC_DEFUN([RTEMS_GCC_SPECS],
[AC_REQUIRE([RTEMS_PROG_CC])
AC_CACHE_CHECK(whether $CC accepts -specs,rtems_cv_gcc_specs,
[
rtems_cv_gcc_specs=no
if test x"$GCC" = x"yes"; then
  touch confspec
  echo 'void f(){}' >conftest.c
  if test -z "`${CC} -specs confspec -c conftest.c 2>&1`";then
    rtems_cv_gcc_specs=yes
  fi
fi
rm -f confspec conftest*
])])

dnl
dnl $Id: prog-cxx.m4,v 1.15.2.1 2004/08/18 07:23:00 ralf Exp $
dnl 
dnl Check for target g++
dnl 

AC_DEFUN([RTEMS_PROG_CXX_FOR_TARGET],
[
AC_BEFORE([$0], [RTEMS_CANONICALIZE_TOOLS])dnl
AC_REQUIRE([RTEMS_ENABLE_CXX])
RTEMS_CHECK_TOOL(CXX,g++)
if test "$RTEMS_HAS_CPLUSPLUS" = "yes";
then
_RTEMS_FLAGS([CXXFLAGS],
  ["\$(CPU_CFLAGS) \$(RTEMS_CFLAGS_\$(VARIANT_V)_V) \$(CFLAGS_\$(VARIANT_V)_V) -g"])

dnl Only accept g++
dnl NOTE: This might be too restrictive
test -z "$CXX" \
  && AC_MSG_ERROR([no acceptable c++ found in \$PATH])
AC_PROG_CXX

  if test "$ac_cv_prog_cc_cross" != "$ac_cv_prog_cxx_cross"; then
    AC_MSG_ERROR([***]
     [Inconsistency in compiler configuration:]
     [Target C compiler and target C++ compiler]
     [must both either be cross compilers or native compilers]
     [Hint: If building a posix bsp: LD_LIBRARY_PATH?] )
  fi

else
AM_CONDITIONAL([am__fastdepCXX],[false])
fi
])