In file src/substvars.sh you define /bin/ksh as a shell for solaris, but it seems like not all test written in a portable way
================= git-exporter test (1/1) =====================
/bin/ksh: line 337: syntax error at line 339: `(' unexpected
ERROR: Test git-exporter failed with unexpected output
failure of /home/avsej/code/oi-userland/components/developer/bitkeeper/build/i86/src/t/src/t/t.git-exporter in /tmp/build/test-/p3750
Makefile:45: recipe for target 'output/OUT.t.git-exporter' failed
make[1]: *** [output/OUT.t.git-exporter] Error 1
make[1]: Leaving directory '/home/avsej/code/oi-userland/components/developer/bitkeeper/build/i86/src/t'