Hello Waldek, Frank, List!
WH> 1) If _unmodified_ gpc gives your result (and gcc does not!) I would WH> consider it a gpc bug, however ATM it looks more like local WH> modification (maybe a wrapper script?). Namely, the `-quiet' option WH> is generated from `specs' file and is there. The part which WH> reads (interprets) specs file is common to all platforms and is WH> identical to code in gcc. BTW, I have build gpc targetting ppc-linux WH> and I do not see timing reports.
Thank you for the prompting about specs file, I managed to investigate the problem a bit further. Hope it will help to find out the actual reason of the problem.
First I rebuilt and reinstalled gcc 4.0.3 and gpc 20060325 from downloaded sources to be sure there are no local changes of mine. Then I tried to find the -quiet option in 'specs' file of gcc but found that there is no 'specs' file in the place where it used to be. Having investigated gcc mailing lists I found that in GCC 4 they do not install specs file at all any longer but use built-in specs instead.
Then I found 'specs' file in gcc 4.0.3 build directory and copied it into its proper place manually. After that all works fine (gpc began to add -quiet option when call cc1).
To find out what exactly is going wrong, I removed specs file once again and saved the output of commands gcc -dumpsspecs and gpc -dumpspecs. Then I returned specs file to its place, regenerated the output of -dumpspecs and compared it with the output I got before (without 'specs' file). The output of gpc and gcc that uses build-in specs and the output of gcc and gpc with specs from file are the same.
Then I tried to run the following command with no file 'specs':
[igor@marnat2 4.0.3]$ /usr/bin/gpc -v -E -H /home/igor/tmp/test/test.c Using built-in specs. <snipped> /usr/libexec/gcc/i686-pc-linux-gnu/4.0.3/cc1 -E -v -H /home/igor/tmp/test/test.c -mtune=pentiumpro <snipped> Execution times (seconds) TOTAL : 0.00 0.00 0.01
and with file specs in place:
[igor@marnat2 test]$ /usr/bin/gpc -v -E -H /home/igor/tmp/test/test.c Reading specs from /usr/lib/gcc/i686-pc-linux-gnu/4.0.3/specs <snipped> /usr/libexec/gcc/i686-pc-linux-gnu/4.0.3/cc1 -E -quiet -v -H /home/igor/tmp/test/test.c -mtune=pentiumpro ignoring nonexistent directory "/usr/lib/gcc/i686-pc-linux-gnu/4.0.3/../../../../i686-pc-linux-gnu/include" <snipped>
As you can see the only difference is that in the second case cc1 is called with -quiet option and therefore it doesn't produce statistics output.
I have also installed in my system gpc of 20050217 version, based on gcc-3.4.3. When I removed its 'specs' file, it also began to omit '-quiet' option in an example shown above and refused to compile c files.
So the questions are 1. Since the built-in specs and specs from 'specs' file are the same (as one can imagine comparing -dumpspecs output), why does gpc omit '-quiet' flag when it calls cc1?
2. What should I do in order to go further with subject? I found the way to get it work for me (by restoring 'specs' file) but I'd like to be totally clear on this point.
Best regards, Igor Marnat mailto:marny@rambler.ru