On 5/1/2014 4:04 PM, Graham Russell wrote:
Thanks for the response, Bill.
I confirmed that the compiler install works fine:
pvm-vangogh-94:grussell [625] /usr/local/bin/gcc hello.c -o hello
pvm-vangogh-94:grussell [626] ./hello Hello World!
I also tested it with your simple program and it also compiles OK and runs.
I think the problem lies in the options that CMake uses to test the AIX compile
environment.
Thanks
Graham Russell
OK, from the log you sent, we can see that CMake is passing some stuff
to the linker:
/usr/local/bin/gcc
CMakeFiles/cmTryCompileExec680887608.dir/testCCompiler.c.o -o
cmTryCompileExec680887608 -Wl,-brtl,-bnoipath,-bexpall
-Wl,-blibpath:/usr/lib:/lib
I think the problem is that you are using the GNU linker, and CMake
seems to be expecting the AIX linker to be used even with gcc.
You can see this is the linker used:
/usr/local/lib/gcc/powerpc-ibm-aix6.1.0.0/4.4.4/../../../../powerpc-ibm-aix6.1.0.0/bin/ld:
Which is the GNU linker and not the AIX linker which supports and needs
that flag.
You should be able to change this in Modules/AIX-GNU.cmake
which has this:
set(CMAKE_SHARED_LIBRARY_LINK_${lang}_FLAGS
"-Wl,-brtl,-bnoipath,-bexpall") # +s, flag for exe link to use shared lib
That should get you going. I will think about a solution that can be
incorporated into CMake. Would you be willing to run a nightly
dashboard with this configuration so we can test it over time?
Thanks.
-Bill
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