[Bug fortran/29669] New: Support for compressed modules

["fxcoudert at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

I suggest that we provide an option to write gzip-compressed module files
(-fcompress-modules). When enabled, the module files written are compressed on
the fly by the appropriate calls to zlib (it's not very hard). Also, reading
module files will need to check if they're compressed by looking at the first
two bytes (even if -fcompress-modules is not enabled).

This will induce too much overhead while we still read module files more than
once per compiled file; marking this bug as depending on 25708.


-- 
           Summary: Support for compressed modules
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P3
         Component: fortran
        AssignedTo: fxcoudert at gcc dot gnu dot org
        ReportedBy: fxcoudert at gcc dot gnu dot org
 BugsThisDependsOn: 25708


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29669