.		for A_JAVA_PORT in ${_JAVA_PORTS_ALL}
A_JAVA_PORT_INFO:=			${A_JAVA_PORT:S/^/\${_/:S/$/_INFO}/}
A_JAVA_PORT_HOME=			${A_JAVA_PORT_INFO:MHOME=*:S,HOME=,,}
A_JAVA_PORT_VERSION=		${A_JAVA_PORT_INFO:MVERSION=*:C/VERSION=([0-9])\.([0-9])(.*)/\1.\2/}
A_JAVA_PORT_OS=				${A_JAVA_PORT_INFO:MOS=*:S,OS=,,}
A_JAVA_PORT_VENDOR=			${A_JAVA_PORT_INFO:MVENDOR=*:S,VENDOR=,,}
.if !defined(_JAVA_PORTS_INSTALLED)
.if !defined(_JAVA_PORTS_INSTALLED) && exists(${A_JAVA_PORT_HOME}/${_JDK_FILE})
A_JAVA_PORT_INSTALLED!=		${TEST} -x "${A_JAVA_PORT_HOME}/${_JDK_FILE}" \
							&& ${ECHO_CMD} "${A_JAVA_PORT}" \
							|| ${TRUE}
__JAVA_PORTS_INSTALLED!=	${ECHO_CMD} "${__JAVA_PORTS_INSTALLED} ${A_JAVA_PORT_INSTALLED}"
__JAVA_PORTS_INSTALLED+=	${A_JAVA_PORT}
.endif

# The magic here is that we want to test for a substring using only shell builtins (to avoid forking)
# Our shell does not have an explicit substring operator, but we can build one by using the '#'
# deletion operator ('%' would also work).  We try to delete the pattern "*${substr}*" and compare it
# to the original string.  If they differ, the substring matched.
# 
# Because variables inside for loops are special (directly replaced as strings), we are allowed
# to use them inside modifiers, where normally ${FOO:M${BAR}} is not allowed.
#
# We can't do this in make because it doesn't allow nested modifiers ${foo:${bar}}
#
A_JAVA_PORT_POSSIBLE!=		ver="${_JAVA_VERSION}"; os="${_JAVA_OS}"; vendor="${_JAVA_VENDOR}"; \
				${TEST} "$${ver\#*${A_JAVA_PORT_VERSION}*}" != "${_JAVA_VERSION}" -a \
				"$${os\#*${A_JAVA_PORT_OS}*}" != "${_JAVA_OS}" -a \
				"$${vendor\#*${A_JAVA_PORT_VENDOR}*}" != "${_JAVA_VENDOR}" && \
				${ECHO_CMD} "${A_JAVA_PORT}" || ${TRUE}
__JAVA_PORTS_POSSIBLE:=		${__JAVA_PORTS_POSSIBLE} ${A_JAVA_PORT_POSSIBLE}
.for ver in ${A_JAVA_PORT_VERSION}
.for os in ${A_JAVA_PORT_OS}
.for vendor in ${A_JAVA_PORT_VENDOR}
.if ${_JAVA_VERSION:M${ver}} && ${_JAVA_OS:M${os}} && ${_JAVA_VENDOR:M${vendor}}
__JAVA_PORTS_POSSIBLE+=		${A_JAVA_PORT}
.endif
.endfor
.endfor
.endfor

.		endfor
.if !defined(_JAVA_PORTS_INSTALLED)
_JAVA_PORTS_INSTALLED=		${__JAVA_PORTS_INSTALLED:C/ [ ]+/ /g}
.endif
_JAVA_PORTS_POSSIBLE=		${__JAVA_PORTS_POSSIBLE:C/ [ ]+/ /g}