On 7/19/06, John E Hein <[EMAIL PROTECTED]> wrote:
Let's say there are two ports A & B.
They both provide libfoo.so.1 (and so register CONFLICTS with each other).
Now port C wants to use libfoo (and doesn't care if it gets it
from A or B).
What does port C list in it's LIB_DEPENDS?
What if it lists A and someone installs B... does A get registered as
the dependency when C is installed even though A is not installed?
In the port Cs Makefile, you add:
.if exists(${PREFIX}/bin/file found only in Port B)
PORTA_STAT= OFF
PORTB_STAT= ON
.else
PORTA_STAT= ON
PORTB_STAT= OFF
.endif
OPTIONS = PORTA "Depends on libfoo from port A" ${PORTA_STAT} \
PORTB "Depends on libfoo from port B" ${PORTB_STAT}
.if defined(WITH_PORTA) || !defined(WITHOUT_PORTA)
LIB_DEPENDS+= foo.1:${PORTSDIR}/dependancy on Port A
.elif defined(WITH_PORTB)
LIB_DEPENDS+= foo.1:${PORTSDIR}/dependancy on Port B
.else
IGNORE= Must choose either port A or B
.endif
This allows the admin to install either port A or B, and port C will
automatically detect which port is installed, as well as allowing the
admin to choose which to install.
Scot
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