minor compilation problems with 8.62.0 on MacOSX

[Jim Reid]

Hi. There's a small compilation/configuration error with gnu- 
ghostscript-8.62.0 on MacOSX 10.5. Compilation of mkromfs fails  
because of a missing linker argument:

gcc -Wall -Wstrict-prototypes -Wundef -Wmissing-declarations -Wmissing- 
prototypes -Wwrite-strings -Wnostrict-aliasing -fno-builtin -fno- 
common -DHAVE_STDINT_H -DGX_COLOR_INDEX_TYPE="unsigned long long"   - 
O2 -Wall -Wstrict-prototypes -Wundef -Wmissing-declarations -Wmissing- 
prototypes -Wwrite-strings -Wno-strict-aliasing -fno-builtin -fno- 
common -DHAVE_STDINT_H -DGX_COLOR_INDEX_TYPE="unsigned long long"   - 
I./src -I./obj/ -Isrc ./src/mkromfs.c -o ./obj/mkromfs ./obj/ 
gscdefs.o ./obj/gsmisc.o ./obj/gpmisc.o ./obj/gslibctx.o ./obj/ 
gp_getnv.o ./obj/gp_unix.o ./obj/gp_unifs.o ./obj/gp_unifn.o ./obj/ 
gp_stdia.o ./obj/gsutil.o -lm -ldl -lm  -liconv -lstdc++
./src/mkromfs.c: In function 'inode_write':
./src/mkromfs.c:287: warning: pointer targets in passing argument 2 of  
'put_byte
s_padded' differ in signedness
Undefined symbols:
  "_compress", referenced from:
      _process_path in cckSTrxL.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
make: *** [obj/mkromfs] Error 1

Rather than fight configure (:-() I just added a -lz argument to the  
compilation invocation and all went well. Perhaps this could be  
incorporated in a cleaner way in the next update?

BTW, I think it would be nice if you just bundled the jpeg and png  
libraries with the source distribution. There doesn't seem much point  
separating these. The code for these libraries is very stable (old?)  
so they might as well be included with the standard ghostscript build.  
Downloading these separately, unpacking them and then moving their  
source directories around to get a nice ghostscript build/install is a  
little annoying make-work. Is there some reason why these have  
deliberately been kept apart?