dnl Check for APU Libraries

dnl CHECK_APU(ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])

dnl Sets:

dnl  APU_CFLAGS

dnl  APU_LDFLAGS

dnl  APU_LIBS

dnl  APU_LINK_LD

APU_CONFIG=""

APU_CFLAGS=""

APU_LDFLAGS=""

APU_LDADD=""

APU_INCLUDEDIR=""

APU_LINKLD=""

AC_DEFUN([CHECK_APU],

[dnl

AC_ARG_WITH(

    apu,

    [AC_HELP_STRING([--with-apu=PATH],[Path to apu prefix or config script])],

    [test_paths="${with_apu}"],

    [test_paths="/usr/local/libapr-util /usr/local/apr-util /usr/local/libapu /usr/local/apu /usr/local/apr /usr/local /opt/libapr-util /opt/apr-util /opt/libapu /opt/apu /opt /usr"])

AC_MSG_CHECKING([for libapu config script])

for x in ${test_paths}; do

    dnl # Determine if the script was specified and use it directly

    if test ! -d "$x" -a -e "$x"; then

        APU_CONFIG=$x

        apu_path="no"

        break

    fi

    dnl # Try known config script names/locations

    for APU_CONFIG in apu-1-mt-config apu-1-config apu-config-1 apu-mt-config-1 apu-mt-config apu-config; do

        if test -e "${x}/bin/${APU_CONFIG}"; then

            apu_path="${x}/bin"

            break

        elif test -e "${x}/${APU_CONFIG}"; then

            apu_path="${x}"

            break

        else

            apu_path=""

        fi

    done

    if test -n "$apu_path"; then

        break

    fi

done

if test -n "${apu_path}"; then

    if test "${apu_path}" != "no"; then

        APU_CONFIG="${apu_path}/${APU_CONFIG}"

    fi

    AC_MSG_RESULT([${APU_CONFIG}])

    APU_VERSION="`${APU_CONFIG} --version`"

    if test "$verbose_output" -eq 1; then AC_MSG_NOTICE(apu VERSION: $APU_VERSION); fi

    APU_CFLAGS="`${APU_CONFIG} --includes`"

    if test "$verbose_output" -eq 1; then AC_MSG_NOTICE(apu CFLAGS: $APU_CFLAGS); fi

    APU_LDFLAGS="`${APU_CONFIG} --ldflags`"

    APU_LDFLAGS="$APU_LDFLAGS `${APU_CONFIG} --libs`"

    if test "$verbose_output" -eq 1; then AC_MSG_NOTICE(apu LDFLAGS: $APU_LDFLAGS); fi

    APU_LDADD="`${APU_CONFIG} --link-libtool`"

    if test "$verbose_output" -eq 1; then AC_MSG_NOTICE(apu LDADD: $APU_LDADD); fi

    APU_INCLUDEDIR="`${APU_CONFIG} --includedir`"

    if test "$verbose_output" -eq 1; then AC_MSG_NOTICE(apu INCLUDEDIR: $APU_INCLUDEDIR); fi

    APU_LINKLD="`${APU_CONFIG} --link-ld`"

    if test "$verbose_output" -eq 1; then AC_MSG_NOTICE(apu LINKLD: $APU_LINKLD); fi

else

    AC_MSG_RESULT([no])

fi

AC_SUBST(APU_CONFIG)

AC_SUBST(APU_VERSION)

AC_SUBST(APU_CFLAGS)

AC_SUBST(APU_LDFLAGS)

AC_SUBST(APU_LDADD)

AC_SUBST(APU_INCLUDEDIR)

AC_SUBST(APU_LINKLD)

if test -z "${APU_VERSION}"; then

    AC_MSG_NOTICE([*** apu library not found.])

    ifelse([$2], , AC_MSG_ERROR([apu library is required]), $2)

else

    AC_MSG_NOTICE([using apu v${APU_VERSION}])

    ifelse([$1], , , $1) 

fi 

])