with LU-812 a direct call to gcc was introduced:

+# build static and shared lib lustreapi
+liblustreapi.a : liblustreapitmp.a
+ rm -f liblustreapi.a liblustreapi.so
+ gcc -shared -o liblustreapi.so `ar -t liblustreapitmp.a`
+ mv liblustreapitmp.a liblustreapi.a

this doesn't work in the given environment.