Some notes.
At least on ppc the default data segment size is just 256 MB. To change the limit one should pass the -bmaxdata:value option to the linker or edit the xcoff metadata using the ldedit tool.
Building 64-bit binaries requires g{++,cc} -maix64 or xl{C,c} -q64.
On pcc xlc -O2 produces code comparable in speed to gcc -O2, the pre-compiled header should be disabled.
Some notes.
At least on ppc the default data segment size is just 256 MB. To change the limit one should pass the -bmaxdata:value option to the linker or edit the xcoff metadata using the ldedit tool.
Building 64-bit binaries requires g{++,cc} -maix64 or xl{C,c} -q64.
On pcc xlc -O2 produces code comparable in speed to gcc -O2, the pre-compiled header should be disabled.
Last edit: mik 2016-12-06