dnl Check for APR Libraries

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

dnl Sets:

dnl  APR_CFLAGS

dnl  APR_LDFLAGS

dnl  APR_LIBS

dnl  APR_LINK_LD

APR_CONFIG=""

APR_CFLAGS=""

APR_CPPFLAGS=""

APR_LDFLAGS=""

APR_LDADD=""

APR_INCLUDEDIR=""

APR_LINKLD=""

AC_DEFUN([CHECK_APR],

[dnl

AC_ARG_WITH(

    apr,

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

    [test_paths="${with_apr}"],

    [test_paths="/usr/local/libapr /usr/local/apr /usr/local /opt/libapr /opt/apr /opt /usr"])

AC_MSG_CHECKING([for libapr 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

        APR_CONFIG=$x

        apr_path=no

        break

    fi

    dnl # Try known config script names/locations

    for APR_CONFIG in apr-1-mt-config apr-1-config apr-config-1 apr-mt-config-1 apr-mt-config apr-config; do

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

            apr_path="${x}/bin"

            break

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

            apr_path="${x}"

            break

        else

            apr_path=""

        fi

    done

    if test -n "$apr_path"; then

        break

    fi

done

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

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

        APR_CONFIG="${apr_path}/${APR_CONFIG}"

    fi

    AC_MSG_RESULT([${APR_CONFIG}])

    APR_VERSION="`${APR_CONFIG} --version`"

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

    APR_CFLAGS="`${APR_CONFIG} --includes`"

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

    APR_CPPFLAGS="`${APR_CONFIG} --cppflags`"

    if test "$verbose_output" -eq 1; then AC_MSG_NOTICE(apr CPPFLAGS: $APR_CPPFLAGS); fi

    APR_LDFLAGS="`${APR_CONFIG} --libs`"

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

    APR_LDADD="`${APR_CONFIG} --link-libtool`"

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

    APR_INCLUDEDIR="`${APR_CONFIG} --includedir`"

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

    APR_LINKLD="`${APR_CONFIG} --link-ld`"

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

else

    AC_MSG_RESULT([no])

fi

AC_SUBST(APR_CONFIG)

AC_SUBST(APR_VERSION)

AC_SUBST(APR_CFLAGS)

AC_SUBST(APR_CPPFLAGS)

AC_SUBST(APR_LDFLAGS)

AC_SUBST(APR_LDADD)

AC_SUBST(APR_INCLUDEDIR)

AC_SUBST(APR_LINKLD)

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

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

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

else

    AC_MSG_NOTICE([using apr v${APR_VERSION}])

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

fi 

])