On Thu, 2015-03-12 at 21:06 +0000, Barak A. Pearlmutter wrote: > Thanks for the bug report. > > >> checking size of void *... 8 > >> configure: WARNING: non 32-bit pointer platform detected > >> configure: trying to enabling 32-bit compilation mode > >> checking size of void *... 0 > >> configure: WARNING: bad news, pointers are now 0 bytes > > > This is caused by trying to use '-m32': > > Indeed. > > Until a 64-bit port is done, Oaklisp requires 32-bit pointers > > I've just push code to error out when it notices "0 byte" pointers. > > > -m32 isn't a valid option to gcc on mips (or on arm64 or ia64[1]). > > > if you want to compile 32-bit code on mips64, you need to pass > > something like '-march=mips2 -mabi=32' to gcc. > > There is no possibility of compiling Oaklisp on a 64-bit machine without > some compiler option requesting a 32-bit pointer memory model. > > I thought GCC used -m32 for this purpose whenever feasible. Ah well. > Perhaps there is an existing autoconf macro, > AX_CFLAGS_32BIT_MEMORY_MODEL or something like that? I poked around but > didn't find anything. I suppose I'll have to break down and write one > myself, casing out on architecture. > > You include the magic above for mips64. You wouldn't happen to know it > for other multilib-enabled 64-bit platforms, would you?
I just tried using -mabi=32 (without the -march stuff) and it worked so only that is needed on mips. These options are untested, I just looked over the GCC manual for them. alpha impossible? amd64 -m32 arm64 -mabi=ilp32 ia64 -milp32 mips64el -mabi=32 ppc64 -m32 ppc64el -m32 s390x -m31 sparc64 -m32 But only some of these architectures have multilib enabled in the glibc package: amd64 mips64el ppc64 (but not ppc64el?) sparc64 s390x > (Of course, another possibility would be to simply drop all 64-bit > architectures aside from amd64 and let people use multiarch to install > the appropriate 32-bit package when applicable.) And that would work as well - I'll leave that up to you :) Thanks, James
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