Re: [gentoo-user] C compiler cannot create executables

[Jack]

On 9/10/22 14:49, Dale wrote:
> Jack wrote:
>> I now get this error trying to emerge two different packages:
>> libofx-0.10.7 and gnupg (both 2.2.39 and 2.3.6).  It might also be the
>> same problem for a few bugs on b.g.o found by searching on "cannot
>> create exectuables."
>>
>> The relevant lines from build.log are
>>
>> checking for x86_64-pc-linux-gnu-gcc... x86_64-pc-linux-gnu-gcc
>> checking whether the C compiler works... no
>> configure: error: in
>> `/var/tmp/portage/dev-libs/libofx-0.10.7/work/libofx-0.10.7':
>> configure: error: C compiler cannot create executables
>> See `config.log' for more details
>>
>> and from config.log:
>>
>> Thread model: posix
>> Supported LTO compression algorithms: zlib
>> gcc version 11.3.0 (Gentoo 11.3.0 p4)
>> configure:2952: $? = 0
>> configure:2941: x86_64-pc-linux-gnu-gcc -V >&5
>> x86_64-pc-linux-gnu-gcc: error: unrecognized command-line option '-V'
>> x86_64-pc-linux-gnu-gcc: fatal error: no input files
>> compilation terminated.
>> configure:2952: $? = 1
>> configure:2941: x86_64-pc-linux-gnu-gcc -qversion >&5
>> x86_64-pc-linux-gnu-gcc: error: unrecognized command-line option
>> '-qversion'; did you mean '--version'?
>> x86_64-pc-linux-gnu-gcc: fatal error: no input files
>> compilation terminated.
>> configure:2952: $? = 1
>> configure:2972: checking whether the C compiler works
>> configure:2994: x86_64-pc-linux-gnu-gcc -march=native -O2 -pipe -og
>> -ggdb  -Wl,-O1 -Wl,--as-needed conftest.c  >&5
>> configure:2998: $? = 0
>> configure:3036: result: no
>> configure: failed program was:
>> | /* confdefs.h */
>> | #define PACKAGE_NAME "libofx"
>> | #define PACKAGE_TARNAME "libofx"
>> | #define PACKAGE_VERSION "0.10.7"
>> | #define PACKAGE_STRING "libofx 0.10.7"
>> | #define PACKAGE_BUGREPORT ""
>> | #define PACKAGE_URL ""
>> | /* end confdefs.h.  */
>> |
>> | int
>> | main ()
>> | {
>> |
>> |   ;
>> |   return 0;
>> | }
>> configure:3041: error: in
>> `/var/tmp/portage/dev-libs/libofx-0.10.7/work/libofx-0.10.7':
>> configure:3043: error: C compiler cannot create executables
>> See `config.log' for more details
>>
>> The thing I find curious is that it appears to me that the output of
>> the test compile is a file called "g" which I don't recall ever
>> seeing, and so I wonder if the problem is that something has changed
>> with gcc defaults and configure does not yet recognize that change.  I
>> also don't know the  significance of the two "fatal error: no input
>> files".
>>
>> The fact that this happens with two unrelated packages suggests that
>> it's  not specific to either of them, but something in my system or
>> configuration.
>>
>> Any thoughts or suggestions?
>>
>> Jack
>>
>>
>>
>
> I ran into this ages ago.  I think the fix was to reset which compiler
> it is set to use.  I used to keep two installed, in case one would fail
> or some package couldn't build with a newer version yet.  If I recall
> correctly, I would list the available options with gcc-config -l and
> then if two are available, set to older one and then change back or if
> only one is installed, just set it to the one you have.  It's been a
> good while and it could be that the cause of the problem has changed but
> I don't think it will hurt anything to try this.  I think some settings
> gets messed up and resetting it fixes it.
>
> Hope that helps.  If not, clueless.  :/

Thanks Dale, but I only have one version of gcc installed and both 
gcc-config and binutils-config show only one option.

I do believe that David Haller pegged the problem, and I'll respond to 
his post after confirming.

Jack