Hi, Today I was building HEAD using macports and had the error: configure: Using compiler: ../../compiler/ghc-inplace configure: Compiler flavor: GHC configure: Compiler version: 6.7.20070607 configure: Using package tool: ../../utils/ghc-pkg/ghc-pkg-inplace checking for gcc... gcc checking for C compiler default output file name... configure: error: C compiler cannot create executables See `config.log' for more details. (this was in libraries/base). The config.log showed the problem: configure:1680: checking for C compiler default output file name configure:1683: gcc -I/opt/local/include --configure-option=-O2 -I/ opt/local/include --configure-option=-I/opt/local/include -L/opt/ local/lib --configure-option=-L/opt/local/lib conftest.c >&5 cc1: error: unrecognized command line option "-fconfigure-option=-O2" cc1: error: unrecognized command line option "-fconfigure-option=-I/ opt/local/include"cc1: error: unrecognized command line option "- fconfigure-option=-L/opt/local/lib"configure:1686: $? = 1 It looks like cabal is messed up, passing "--configure-option=" when it should be stripping it out. Is this a problem with the HEAD branch or do I need a development version of cabal from the darcs repository to build the latest ghc? Best Wishes, Greg