Please describe the problem:
Since app/Makefile.am contains few GNU ld option, Gimp cannot be build using
solaris linker. 

Steps to reproduce:
1. bunzip2 -c gimp-2.3.7.tar.bz2 | tar xf - && cd gimp-2.3.7
2. ./configure
3. make


Actual results:
Gimp build ends with the following message:

ld: fatal: file $ORIGIN/../lib: open failed: No such file or directory
make[3]: *** [gimp-2.3] Error 1
make[3]: Leaving directory `/tmp/newgimp/gimp-2.3.7/app'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/tmp/newgimp/gimp-2.3.7/app'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/tmp/newgimp/gimp-2.3.7'
make: *** [all] Error 2
Error while installing gimp


Expected results:
A fresh Gimp binary

Does this happen every time?
Yes.

Other information:
Backing out the following lines in app/Makefile allow the linker to do its job.
I found out in CVS comments that it is related to relocation but I can't imagine
what it is supposed to do (include a variable in an ELF library search path?)

if OS_UNIX
munix = -Wl,-rpath '-Wl,$$ORIGIN/../lib'
endif