Hi Guillaume, I went through these steps: + downloaded gnupg-1.4.1 + ./configure + make GNU PG built without issue, using GCC 3.3 20030304 (Apple Computer, Inc. build 1666). On OS X 10.3.9, on a dual G4/1.4, 2 GB RAM. >Here is the typical error msg I get when trying to run ./configure files: ... 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. I did not get that during the configure of GNU PG. I got: checking for C compiler default output file name... a.out There appears to be some other discrepancy in your environment. (I presume that my environment is not the one with the discrepancy, because I am able to build GNU PG, which is what I presume is the expected case.) Check your config.log for more details. Food for thought, --Eljay