ac_pkg_mico

This macro searches for a MICO installation on your system. MICO (Mico Is COrba) installs the file 'mico-setup.sh' under MICO_INSTALL_BASE/lib, where MICO_INSTALL_BASE is probably /usr/local or /usr. If nothing was specified when calling configure or just --with-mico, it searches in $prefix/lib:/usr/local/lib:/usr/lib The argument of s--with-mico specifies the full pathname of the mico-setup.sh file. For instance --with-mico=/usr/local/mico-2.2.6/lib/mico-setup.sh.

If the version argument is given (e.g. 2.2.6), AC_PKG_MICO checks that the mico package is this version number or higher.

The other optional argument to AC_PKG_MICO are 'optional' and 'required'. by default, placing AC_PKG_MICO in your configure.in does not enforce using mico, if it is not found on the system. If MICO existence is critical for the building of your package, then you probably want to specify something like "AC_PKG_MICO(2.2.6 required)". Then, even if the --with-mico was not spcefied on the command line of the configure script, an error will be raised if mico was not found.

If the mico package is not found, abort configuration with error message.

It defines the symbol MICOSETUP, MICOVERSION, MICOSHAREDDIR MICO_INCLUDE, MICO_LIB and MICO_CXX if mico is found. In addition, the mico script mico-c++ (set in (MICO_CXX) is scaned for a string match "-I.*ministl" and if foundMICO_USE_MINISTL is set to 1, otherwise to 0.

Example of use of these variables in your Makefile.in:

   INCLUDES += @MICO_INCLUDE@
   LDFLAGS += @MICO_LIB@

AC_DEFUN([AC_PKG_MICO],
[
#
# first parse the argument given in configure.in to AC_PKG_MICO
#
MICO_REQUEST_VERSION=
MICO_URGENCY="optional"

changequote(<<, >>)

for a in $1 $2 $3 $4 $5 $6 $7 $8 $9 x; do
    case "$a" in
        x) break;;
        [0-9]*.[0-9]*.[0-9]*) MICO_REQUEST_VERSION="$a";;
        optional|required) MICO_URGENCY="$a";;
        *) argerror="argument to the PKG_MICO macro must be one of 'X.X.X' 'required' or 'optional'";;
    esac
done

changequote([, ])

if test -n "$argerror"; then
  AC_MSG_ERROR($argerror)
fi;

AC_MSG_CHECKING(if mico is wanted)
AC_ARG_WITH(mico,
    [  --with-mico=PATH absolute path name of mico's configuration file 'mico-setup.sh' (default is to search in \$prefix/lib:/usr/local/lib:/usr/lib),
    --without-mico to disable mico detection],
    [
    #
    # Run this if -with or -without was specified
    #
    case "$withval" in
        yes) MICO_URGENCY=required;;
        no) if test x$MICO_URGENCY = xrequired; then
                AC_MSG_ERROR("PKG_MICO was configured with the 'required' option. You can not override it from the command line")
            fi;
            ;;
        *) MICO_URGENCY=required; MICOSETUP="$withval" ;;
    esac

    ],[])

AC_MSG_RESULT($MICO_URGENCY)

#
# Now we know if we want mico or not, only go further if
# it's wanted.
#
if test x$MICO_URGENCY = xrequired -o  x$MICO_URGENCY = xoptional; then
    #
    # If not specified by caller, search in standard places
    #
    if test -z "$MICOSETUP" ; then
      AC_PATH_PROG(MICOSETUP, mico-setup.sh, , $prefix/lib:/usr/local/lib:/usr/lib)
    fi
    if test -z "$MICOSETUP" ; then
        if test x$MICO_URGENCY = xrequired ; then
            AC_MSG_ERROR("mico setup file mico-setup.sh not found")
        else
            AC_MSG_RESULT("mico setup file mico-setup.sh not found")
        fi
    else
        # source mico-setup.sh
        # Collect mico version number.
        # But be carefull - mico-setup.sh
        # unsets prefix and exec_prefix so save them first
        sh -c ". $MICOSETUP; echo MICOVERSION=\${MICOVERSION}; echo MICOSHAREDDIR=\${MICOSHAREDDIR}; echo MICODIR=\${MICODIR}" > conftest.mico-setup

        eval `cat conftest.mico-setup`

        if test -z "$MICOVERSION" ; then
            AC_MSG_ERROR("panic: could not read the MICOVERSION variable");
        fi
        #
        # Check that mico version matches requested version or above
        #
        if test -n "$MICO_REQUEST_VERSION" ; then
            changequote(<<, >>)dnl
            MICO_MAJOR=`expr $MICOVERSION : '\([0-9]*\)\.[0-9]*\.[0-9]*'`
            MICO_MINOR=`expr $MICOVERSION : '[0-9]*\.\([0-9]*\)\.[0-9]*'`
            MICO_RELEASE=`expr $MICOVERSION : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
            MICO_REQUEST_MAJOR=`expr $MICO_REQUEST_VERSION : '\([0-9]*\)\.[0-9]*\.[0-9]*'`
            MICO_REQUEST_MINOR=`expr $MICO_REQUEST_VERSION : '[0-9]*\.\([0-9]*\)\.[0-9]*'`
            MICO_REQUEST_RELEASE=`expr $MICO_REQUEST_VERSION : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
            changequote([, ])dnl

            AC_MSG_CHECKING(mico version >= $MICO_REQUEST_VERSION)

            version_ok=yes
            for verpair in "$MICO_MAJOR:$MICO_REQUEST_MAJOR" "$MICO_MINOR:$MICO_REQUEST_MINOR" "$MICO_RELEASE:$MICO_REQUEST_RELEASE"; do
                if eval "test `echo $verpair | sed 's,:, -gt ,'`"; then
                    break
                fi
                if eval "test `echo $verpair | sed 's,:, -lt ,'`"; then
                    version_ok=no
                    break
                fi
            done
            if test  x$version_ok = xno; then
                AC_MSG_RESULT(no)
                AC_MSG_ERROR(mico version is $MICOVERSION)
            else
                AC_MSG_RESULT(yes)
            fi
        fi
        #
        # look for mico-c++ and scan it for a string match
        # to "-I*ministl"
        #
        AC_PATH_PROG(MICO_CXX, mico-c++, , ${MICODIR}/bin:${MICOSHAREDDIR}/bin)
        if test -z "$MICO_CXX"; then
            AC_MSG_ERROR("panic: can not locate and scan the mico script mico-c++")
        fi

        AC_MSG_CHECKING(if mico was compiled using ministl)

        if test -z "`grep '\-I.*ministl' $MICO_CXX`"; then
            MICO_USE_MINISTL=0
            AC_MSG_RESULT(no)
        else
            MICO_USE_MINISTL=1
            AC_MSG_RESULT(yes)
        fi
        #
        # look for mico-ld and scan it for -l* libraries
        # needed to link with mico
        #
        AC_PATH_PROG(MICO_LD, mico-ld, , ${MICODIR}/bin:${MICOSHAREDDIR}/bin)

        if test -z "$MICO_LD"; then
            AC_MSG_ERROR("panic: can not locate and scan the mico script mico-ld")
        fi

        AC_MSG_CHECKING(mico dependencies)

        micodeps=
        for item in `grep -- -l $MICO_LD | tr '"' ' '` ; do
            case $item in
                -l*) micodeps="$micodeps $item" ;;
            esac
        done

        if test -z "$micodeps" ;then
            AC_MSG_RESULT(none)
        else
            AC_MSG_RESULT($micodeps)
        fi

        AC_MSG_CHECKING(how to link with the mico library)
        MICO_LIB="-L${MICODIR}/lib -lmico${MICOVERSION} $micodeps"
        AC_MSG_RESULT($MICO_LIB)

        MICO_INCLUDE="-I${MICOSHAREDDIR}/include"

        AC_SUBST(MICODIR)
        AC_SUBST(MICOVERSION)
        AC_SUBST(MICOSHAREDDIR)
        AC_SUBST(MICO_INCLUDE)
        AC_SUBST(MICO_LIB)
        AC_SUBST(MICO_USE_MINISTL)
    fi
fi
])