[raster] Compilation fails with `make -jX`

[martinl]

PostGIS configured with

--with-raster --with-topology

and compiled by

make -j3

Compilation fails with

gcc -g -O2 -g -O2 -Wall -fPIC -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing -fwrapv -g -fpic -shared -o rtpostgis-2.0.so rt_pg.o -L/usr/lib -Wl,--as-needed  -Wl,--as-needed  -L/usr/local/lib  -lgeos_c -lproj -lxml2 ../rt_core/librtcore.a /usr/local/src/postgis_trunk/liblwgeom/liblwgeom.a -L/usr/local/lib -lgdal 
gcc: error: ../rt_core/librtcore.a: No such file or directory
make[2]: *** [rtpostgis-2.0.so] Error 1
make[2]: Leaving directory `/usr/local/src/postgis_trunk/raster/rt_pg'

[strk]

PostGIS Makefiles are pretty messy. You'll have worst problems than this one (deps not correctly tracked). Anyway, any improvement patch is welcome.

[dustymugs]

Lowered priority and moved from 2.0 to Future as this is a nice feature to have though I can't complain about the compile time of PostGIS with raster and topology.