diff options
Diffstat (limited to 'config_h.SH')
| -rwxr-xr-x | config_h.SH | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/config_h.SH b/config_h.SH index 938cf51a21..cfae03ad99 100755 --- a/config_h.SH +++ b/config_h.SH @@ -39,8 +39,25 @@ sed <<!GROK!THIS! >config.h -e 's!^#undef\(.*/\)\*!/\*#define\1 \*!' -e 's!^#un- /* MEM_ALIGNBYTES: * This symbol contains the number of bytes required to align a * double. Usual values are 2, 4 and 8. + * On NeXT starting with 3.2, you can build "Fat" Multiple Architecture + * Binaries (MAB) for targets with varying alignment. This only matters + * for perl, where the config.h can be generated and installed on one + * system, and used by a different architecture to build an extension. + * The default is eight, for safety. */ +#ifndef NeXT #define MEM_ALIGNBYTES $alignbytes /**/ +#else /* NeXT */ +#ifdef __m68k__ +#define MEM_ALIGNBYTES 2 +#else +#ifdef __i386__ +#define MEM_ALIGNBYTES 4 +#else /* __hppa__, __sparc__ and default for unknown architectures */ +#define MEM_ALIGNBYTES 8 +#endif /* __i386__ */ +#endif /* __m68k__ */ +#endif /* NeXT */ /* ARCHNAME: * This symbol holds a string representing the architecture name. @@ -1443,7 +1460,7 @@ sed <<!GROK!THIS! >config.h -e 's!^#undef\(.*/\)\*!/\*#define\1 \*!' -e 's!^#un- /* BYTEORDER: * This symbol holds the hexadecimal constant defined in byteorder, * i.e. 0x1234 or 0x4321, etc... - * On NeXT 4 (and greater), you can build "Fat" Multiple Architecture + * On NeXT 3.2 (and greater), you can build "Fat" Multiple Architecture * Binaries (MAB) on either big endian or little endian machines. * The endian-ness is available at compile-time. This only matters * for perl, where the config.h can be generated and installed on |