Problem building an gimp-1.1.32 RPM

[Henning Sauer]

Hello,

today I tried to build a an rpm of gimp-1.1.32 from the source via
"rpm -ta gimp-1.1.32.tar.bz2", but it didn't work because in the
installation phase it couldn't find the gimp executable in the
/usr/bin directory under BuildRoot. Instead the gimp exectuable as
well as the plug-ins, modules and libraries where directly installed
to /usr.
Is their a way to correct this behaviour and build an RPM ?

My configuration:
RedHat 7.0/i386

Bye,
Henning