cross compilation of freeradius-server-3.0.10 fails at link of radeapclient, undefined references

[Aaron Wegner]

On 2016-04-22 11:42, Alan DeKok wrote:
> On Apr 22, 2016, at 9:53 AM, Aaron Wegner <aaron at cs.wisc.edu> wrote:
>> 
>> When I start the build of FreeRADIUS it fails with an error because it 
>> can't execute jlibtool.  If I use the native compiler rather than the 
>> cross compiler to build jlibtool the build proceeds.
> 
>   The build system isn't really set up to do cross-compilation.
> 
>> $ gcc scripts/jlibtool.c -o build/make/jlibtool
> 
>   That helps.
> 
>> However it breaks again when it tries to link 
>> build/bin/local/radeapclient (sorry my mail client is adding newlines 
>> to long single lines).
>> 
>> LTIB> build/make/jlibtool --silent --mode=link gcc -o 
>> build/bin/local/radeapclient -rpath 
>> /spare1/aaron/0339/ltib/rpm/BUILD/freeradius-server-3.0.10/build/lib/local//.libs 
>> --shared -L/spare1/aaron/0339/ltib/rootfs/usr/lib 
>> -Wl,-rpath,/spare1/aaron/0339/ltib/rootfs/usr/lib     
>> build/objs/src/modules/rlm_eap/radeapclient.lo 
>> build/objs/src/main/files.lo build/objs/src/main/threads.lo 
>> build/objs/src/main/version.lo build/objs/src/main/cb.lo 
>> build/objs/src/main/tls.lo build/lib/local/libfreeradius-radius.la 
>> build/lib/local/libfreeradius-server.la 
>> build/lib/local/libfreeradius-eap.la  -lcrypto -lssl -ltalloc  -lpcre  
>> -lcap -lnsl -lresolv -ldl -lpthread  -lcrypto -lssl
>> 
>> However, if I change the command to the following it works.
>> 
>> LTIB> gcc -o build/bin/local/radeapclient -Wl,-rpath 
>> /spare1/aaron/0339/ltib/rpm/BUILD/freeradius-server-3.0.10/build/lib/local//.libs 
>> --shared -L/spare1/aaron/0339/ltib/rootfs/usr/lib 
>> -Wl,-rpath,/spare1/aaron/0339/ltib/rootfs/usr/lib 
>> -L/spare1/aaron/0339/ltib/rpm/BUILD/freeradius-server-3.0.10/build/lib/local//.libs 
>>  build/objs/src/modules/rlm_eap/radeapclient.o 
>> build/objs/src/main/files.o build/objs/src/main/threads.o 
>> build/objs/src/main/version.o build/objs/src/main/cb.o 
>> build/objs/src/main/tls.o -lfreeradius-radius -lfreeradius-server 
>> -lfreeradius-eap  -lcrypto -lssl -ltalloc  -lpcre  -lcap -lnsl 
>> -lresolv -ldl -lpthread  -lcrypto -lssl
> 
>   You're running the local "gcc", and not the cross-compiler.
> 
>   You should do:
> 
> $ CC=/path/to/cross/cc ./configure ... args ...
> $ gcc scripts/jlibtool.c -o build/make/jlibtool
> $ make
> 
>   That lets you build jlibtool with the native C compiler, and the
> rest of the build system will then use the cross compiler.

In the LTIB environment "gcc" is the cross compiler.  It's spoofed, not 
the native compiler.

[aaron at geiswbuild1 /spare1/aaron/0339/ltib Fri Apr 22 12:59:44]
$ ./ltib -m shell
LTIB> gcc --version
powerpc-linux-gnu-gcc (Sourcery CodeBench 2014.11-97) 4.9.1
LTIB> exit
exit
[aaron at geiswbuild1 /spare1/aaron/0339/ltib Fri Apr 22 13:00:54]
$ gcc --version
gcc (GCC) 4.6.3 20120306 (Red Hat 4.6.3-2)

Both 3.0.10 and 3.0.11 are working for me now.  I tried to duplicate the 
errors from yesterday and I no longer can, sorry for what seems to be an 
unnecessary request for help.  Moving forward, thanks.

> 
>   Alan DeKok.
> 
> 
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