[Bug objc/47229] New: Objective C and C++ compiler frontends

[Bug objc/47229] New: Objective C and C++ compiler frontends

[rwild at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47229

           Summary: Objective C and C++ compiler frontends
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P3
         Component: objc
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: rwild@gcc.gnu.org


It would be nice to have gobjc and gobjc++ compiler driver binaries that would
only be installed if Objective C or C++, respectively, were enabled at build
time.  This would very much simplify configure tests addressing the question
"do I have an Objective C(++) compiler, possibly cross-compiling, and possibly
not yet able to link successfully".

Thanks,
Ralf

[Bug objc/47229] Objective C and C++ compiler frontends

[nicola at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47229

Nicola Pero <nicola at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |nicola at gcc dot gnu.org

--- Comment #1 from Nicola Pero <nicola at gcc dot gnu.org> 2011-01-09 12:07:57 UTC ---
To test for an Objective-C compiler, I think you can use something like --

echo "int main (void) { return 0; }" > test.m
gcc -x objective-c test.m -o test.o

if gcc was built without objective-c support, you should get an error.

For objective-c++, you should be able to use

gcc -x objective-c++ test.m -o test.o

The advantage of doing this is that it should work with all versions of gcc
that support objective-c (and btw with other compilers as well).

Let me know if I missed the point completely! ;-)

Thanks

[Bug objc/47229] Objective C and C++ compiler frontends

[joseph at codesourcery dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47229

--- Comment #2 from joseph at codesourcery dot com <joseph at codesourcery dot com> 2011-01-09 14:47:10 UTC ---
See discussions on gcc-patches in Aug/Sep 2010 of patches that attempted 
to add such drivers but duplicated too much code instead of carefully 
refactoring with incremental changes without changing behavior except 
where explicitly intended and explained.

Note that the drivers can now use VECs which may make some of the things 
discussed in those threads simpler to do....

[Bug objc/47229] Objective C and C++ compiler frontends

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47229

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2011-12-15
            Version|unknown                     |4.7.0
     Ever Confirmed|0                           |1