[MacPorts] #40255: mapserver: configure fails when dependencies have not yet been installed

[MacPorts]

#40255: mapserver: configure fails when dependencies have not yet been installed
--------------------------+-----------------------
 Reporter:  ryandesign@…  |      Owner:  jea@…
     Type:  defect        |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:  2.2.0
 Keywords:                |       Port:  mapserver
--------------------------+-----------------------
 mapserver fails to build on the buildbots, because:

 {{{
 checking if PostGIS support requested... configure: error:
 '/bin/pg_config' is not an executable.  Make sure you use --with-
 postgis=/path/to/pg_config
 }}}

 The mapserver portfile does a number of wrong things, such as building
 itself differently depending on the version of postgresql the user has
 installed:

 {{{
 if {[variant_isset postgis]} {
     # check for most recent version of postgresql installed
     set HAVE_PGCONFIG [llength [glob -nocomplain -d ${prefix}/lib
 postgresql*/bin/pg_config]]
     # if not found, intall the postgresql port
     if {$HAVE_PGCONFIG == 0} {
         depends_lib-append  port:postgresql90
     }
 }
 }}}

 and assuming that dependencies have been installed before that is actually
 guaranteed to be the case:

 {{{
 variant postgis description {Add support for postgis sources} {
     set PGSQL_DIR [lindex [lsort -dec [glob -nocomplain -d ${prefix}/lib
 postgresql*]] 0]
     configure.args-append   "--with-postgis=${PGSQL_DIR}/bin/pg_config"
 }
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/40255>
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