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Portability issues to MacOS X #59

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dido opened this issue May 22, 2013 · 0 comments
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@dido dido commented May 22, 2013

Portability isn't a high priority at the moment, but after a recent comment on the dev page it looks like I'm going to have to give it a bit of a shot.

http://arcueid-arc.org/2013/05/14/arcueid-0-1-2-released/

Well, there are a number of issues addressed by ben in his comment:

  1. malloc.h is included by alloc.c. This is used only for malloc_trim, and this is a glibc-ism, and isn't available on platforms that don't use GNU libc. Have added a check for malloc.h and malloc_trim in configure.in. It isn't absolutely necessary: it's just there to force freeing of unused memory at the end of a gc cycle.
  2. Non-portable use of internal structure of a stdio FILE in fileio.c. Needed to check whether the buffers are empty. I basically cribbed the code for this from Ruby, and it looks like I need to crib more such non-portable code from Ruby as well.
  3. Missing inclusion of sys/select.h in fileio.c. This has been rectified as well, although I don't know if it will be enough.
  4. Size of a struct timep isn't known when compiling osdep.c. Not sure why this is, because we include both time.h and sys/time.h in osdep.c. I'll need output of gcc -E at least, access to an OS X or Darwin system to be completely sure.

Let's see if a FreeBSD and OpenDarwin VM can smoke out more issues for portability to other Unix-like platforms.

@ghost ghost assigned dido May 22, 2013
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