Hi All, I'm trying to figure out the build system, but can't figure out why this isn't working: In the driver folder I created a new folder "ghc-split". The content of that is: -rw-r--r-- 1 Tamar Users 784 Mar 22 13:18 ghc.mk -rw-r--r-- 1 Tamar Users 513 Mar 15 11:40 ghc-split.cabal -rw-r--r-- 1 Tamar Users 1611 Mar 15 07:30 LICENSE -rw-r--r-- 1 Tamar Users 2162 Mar 15 07:51 Main.lhs -rw-r--r-- 1 Tamar Users 518 Mar 22 11:45 Makefile My Makefile contains: dir = driver/ghc-split TOP = ../.. include $(TOP)/mk/sub-makefile.mk and my ghc.mk: driver/ghc-split_USES_CABAL = YES driver/ghc-split_PACKAGE = ghc-split driver/ghc-split_dist-install_INSTALL = YES driver/ghc-split_dist-install_PROGNAME = ghc-split driver/ghc-split_dist-install_INSTALL_INPLACE = YES driver/ghc-split_dist-install_WANT_BINDIST_WRAPPER = YES $(eval $(call build-prog,driver/ghc-split,dist-install,0)) From https://ghc.haskell.org/trac/ghc/wiki/Building/Architecture/Idiom/StandardTa... I gather that this should work under the standard target make all_driver/ghc-split_dist-install, however when I do a make I get: make[2]: *** No rule to make target 'all_driver/ghc-split'. Stop. Makefile:72: recipe for target 'all_driver/ghc-split' failed make[1]: *** [all_driver/ghc-split] Error 2 make[1]: Leaving directory '/home/Tamar/ghc2' ../../mk/sub-makefile.mk:45: recipe for target 'all' failed make: *** [all] Error 2 and I haven't been able to figure out why.. Any thoughts? Regards, Tamar