GNU bug report logs - #19935
Checking whether C compiler handles -Wenum-compare does not work

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Lukasz Dorau <lukasz.dev.dorau <at> gmail.com>
Subject: bug#19935: closed (Re: bug#19935: Checking whether C compiler
 handles -Wenum-compare does not work)
Date: Mon, 21 Sep 2015 07:47:03 +0000

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Your bug report

#19935: Checking whether C compiler handles -Wenum-compare does not work

which was filed against the grep package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 19935 <at> debbugs.gnu.org.

-- 
19935: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=19935
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Jim Meyering <jim <at> meyering.net>
To: Lukasz Dorau <lukasz.dev.dorau <at> gmail.com>
Cc: 19935-done <at> debbugs.gnu.org
Subject: Re: bug#19935: Checking whether C compiler handles -Wenum-compare
 does not work
Date: Mon, 21 Sep 2015 08:46:37 +0100

On Mon, Sep 21, 2015 at 8:16 AM, Lukasz Dorau
<lukasz.dev.dorau <at> gmail.com> wrote:
...
>
> I do not use CentOS anymore.
> Now I am using Fedora 21 and I cannot reproduce it on Fedora 21.
> You can close this bug as for me.

Closing with this message, by inserting "-done" into
the 19935-done <at> debbugs.gnu.org address.

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From: Lukasz Dorau <lukasz.dev.dorau <at> gmail.com>
To: bug-grep <at> gnu.org
Subject: Checking whether C compiler handles -Wenum-compare does not work
Date: Tue, 24 Feb 2015 12:02:45 +0100

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Checking whether C compiler handles -Wenum-compare does not work:

configure:34007: checking whether C compiler handles -Wenum-compare
configure:34026: gcc -std=gnu99 -o conftest -g -O2  -Wenum-compare
conftest.c  >&5
cc1: warning: command line option "-Wenum-compare" is valid for C++/ObjC++
but not for C
configure:34026: $? = 0
configure:34037: result: yes

Whole config.log is attached.

As a result make fails:
$ make
make  all-recursive
make[1]: Entering directory `/mnt/files/repos/grep'
Making all in po
make[2]: Entering directory `/mnt/files/repos/grep/po'
make[2]: Nothing to be done for `all'.
make[2]: Leaving directory `/mnt/files/repos/grep/po'
Making all in lib
make[2]: Entering directory `/mnt/files/repos/grep/lib'
make  all-am
make[3]: Entering directory `/mnt/files/repos/grep/lib'
  CC       binary-io.o
cc1: warning: command line option "-Wenum-compare" is valid for C++/ObjC++
but not for C
cc1: warnings being treated as errors
In file included from binary-io.c:3:
binary-io.h:53: error: no previous prototype for 'set_binary_mode'
[-Wmissing-prototypes]
make[3]: *** [binary-io.o] Error 1
make[3]: Leaving directory `/mnt/files/repos/grep/lib'
make[2]: *** [all] Error 2
make[2]: Leaving directory `/mnt/files/repos/grep/lib'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/mnt/files/repos/grep'
make: *** [all] Error 2

--
Lukasz

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