Limit the memory allocation to 2GiB when building profiles

colord.spec

@@ -93,6 +93,11 @@ This may be useful for CMYK soft-proofing or for extra device support.
 # https://bugzilla.redhat.com/show_bug.cgi?id=892837
 export CFLAGS='-fPIC %optflags'
 export LDFLAGS='-pie -Wl,-z,now -Wl,-z,relro'
+
+# Set ~2 GiB limit so that colprof is forced to work in chunks when
+# generating the print profile rather than trying to allocate a 3.1 GiB
+# chunk of RAM to put the entire B-to-A tables in.
+ulimit -Sv 2000000
 %configure \
         --with-daemon-user=colord \
         --enable-gtk-doc \