The doc for -fsyntax-only says "Check the code for syntax errors, but dont do anything beyond that." while that option actually does more than that: it creates module files (the *.mod files).
If we believe it's an intended behaviour, it should be noted in the docs. If we believe it's not what we want, we should make another -fgenerate-module-files option and handle both. (we need an option to generate module files, because it's used by the libgomp build machinery). Personnaly, I'd go for the second option. -- Summary: -fsyntax-only documentation is not accurate Product: gcc Version: 4.3.0 Status: UNCONFIRMED Keywords: documentation Severity: enhancement Priority: P3 Component: fortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: fxcoudert at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31612