Jędrzej Dudkiewicz wrote:
Hi, I'm trying to build gcc-3.4.6 on AIX 4.3. I'm following the system-specific instructions for AIX system (CONFIG_SHELL, patches, etc.). As a machine I build on is rather old, there is not enough space on harddisk, so I'm doing everything on a remote mount (NFS).
What about cross-compiling, aka making a crosscompiler for AIX 4.3? Should it be possible? At least for someone who legally has the target stuff, C library binaries and headers... For anyone interested? The AIX target stuff being freely available via download?
I run configure from/jd/src/gcc-build/aix-build directory: ../gcc-3.4.6/configure --with-as=/usr/bin/as --with-ld=/usr/bin/ld --disable-nls --enable-languages=c,c++ --prefix=/jd/aix-bin/gcc-3.4.6 --enable-threads --enable-shared --enable-static Compilation fails after about seven hours(!)
I would expect the same happening in 15-30 minutes even on a 600-800 MHz PC with Linux and with 512 Mbytes RAM... Producing multilibs for libgcc can make things a little slower.
with the following: configure:2484: checking whether the C compiler works configure:2490: ./a.out Could not load program ./a.out: Cannot run a 64-bit program on a 32-bit machine. configure:2493: $? = 255 configure:2502: error: cannot run C compiled programs. It seems obvious that in such case attempt at building 64-bit version should be avoided - but it isn't. What is the best way to solve this?
As the row in the log tells : "tooldir=/jd/aix-bin/gcc-3.4.6/powerpc-ibm-aix4.3.3.0" the $target name was calculated as 'powerpc-ibm-aix4.3.3.0'. If this is a 32-bit only system, a crosscompiler is the way for producing those 64- bit apps. If it should be a 64-bit system which can also run 32-bit apps, then something is badly wrong :( The 'powerpc' however tells about a 32-bit PPC system, a 64-bit system would be recognized as 'powerpc64-ibm-aix4.3.3.0'... Ok, what I could try first is to edit the 'gcc/config/rs6000/t-aix43' and remove the 'ppc64' multilib from the rows : MULTILIB_OPTIONS = mcpu=common/mcpu=power/mcpu=powerpc/maix64 MULTILIB_DIRNAMES = common power powerpc ppc64 so that these will be like : MULTILIB_OPTIONS = mcpu=common/mcpu=power/mcpu=powerpc MULTILIB_DIRNAMES = common power powerpc I really don't know what it should do or shouldn't do in an AIX system, this fix only removes the production of the '-maix64' libraries...
