[raster] make -j N not working if postgis_raster enabled

[iacovellas]

Compiling PostGIS with -j option fails if postgis_raster is enabled. I have tested on Linux Mint 14x86 with PostGIS 2.0.3

when compiling with

$ ./configure $ make -j 4 all

it fails with following error:

gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -Wmissing-format-attribute -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -fpic -shared -o rtpostgis-2.0.so rt_pg.o -L/usr/local/pgsql/lib -L/usr/lib -Wl,—as-needed -Wl,-rpath,'/usr/local/pgsql/lib',—enable-new-dtags ../rt_core/librtcore.a ../../liblwgeom/.libs/liblwgeom.a ../../libpgcommon/libpgcommon.a -L/usr/local/lib -lgdal -L/usr/local/lib -lgeos_c -lproj -ljson -L/usr/lib -lxml2 gcc: error: ../rt_core/librtcore.a: No such file or directory make[2]: * [rtpostgis-2.0.so] Error 1 make[2]: * Waiting for unfinished jobs…. make[2]: Leaving directory `/home/stefano/sources/postgis-2.0.3/raster/rt_pg' make[1]: * [pglib] Error 2 make[1]: * Waiting for unfinished jobs…. ar rs librtcore.a rt_api.o ar: creating librtcore.a make[3]: Leaving directory `/home/stefano/sources/postgis-2.0.3/raster/rt_core' /bin/bash ../../libtool —mode=link gcc -g -O2 -fPIC -DPIC -Wall -Wmissing-prototypes -I../rt_core -I../../liblwgeom -I/usr/local/pgsql/include -I/usr/local/include -I/usr/local/include raster2pgsql.o ../rt_core/librtcore.a ../rt_core/librtcore.a ../../liblwgeom/liblwgeom.la -L/usr/local/pgsql/lib -lpq -L/usr/local/lib -lgdal -L/usr/local/lib -lgeos_c -lc -lm -o raster2pgsql ar rs librtcore.a rt_api.o make[2]: Leaving directory `/home/stefano/sources/postgis-2.0.3/raster/rt_core' libtool: link: gcc -g -O2 -fPIC -DPIC -Wall -Wmissing-prototypes -I../rt_core -I../../liblwgeom -I/usr/local/pgsql/include -I/usr/local/include -I/usr/local/include raster2pgsql.o -o .libs/raster2pgsql ../rt_core/librtcore.a ../../liblwgeom/.libs/liblwgeom.so -L/usr/local/pgsql/lib -lpq -L/usr/local/lib /usr/local/lib/libgdal.so /usr/local/lib/libgeos_c.so -lc -lm make[2]: Leaving directory `/home/stefano/sources/postgis-2.0.3/raster/loader' make[1]: Leaving directory `/home/stefano/sources/postgis-2.0.3/raster' make: * [all] Error 1

when compiling with

$ ./configure —without_raster $ make -j 4 all

There is no error

[dustymugs]

By the looks of it, make is trying to build librtcore.a at the same time as it is building rtpostgis-2.0.so that depends upon librtcore.a. The error makes perfect sense.

An easy workaround is to add .NOTPARALLEL pseudo-target to raster, especially due to the limited number of source files…

[dustymugs]

pseudo-target .NOTPARALLEL added for -branch 2.0 in r11283. Added for -trunk in r11284.