| 1 | microperl is supposed to be a really minimal perl, even more |
| 2 | minimal than miniperl. No Configure is needed to build microperl, |
| 3 | on the other hand this means that interfaces between Perl and your |
| 4 | operating system are left very -- minimal. |
| 5 | |
| 6 | All this is experimental. If you don't know what to do with microperl |
| 7 | you probably shouldn't. Please don't report bugs in microperl; fix the |
| 8 | bugs. (Bugs reports about microperl without fixes/patches are equivalent |
| 9 | to wishlist requests - they won't be discarded, but they likely won't get |
| 10 | worked on either, unless they chance to coincide with someone's personal itch) |
| 11 | |
| 12 | We assume ANSI C89 plus the following: |
| 13 | - <stddef.h>, <stdlib.h> |
| 14 | - rename() |
| 15 | - opendir(), readdir(), closedir() (via dirent.h) |
| 16 | - memchr(), memcmp(), memcpy(), memset() (via string.h) |
| 17 | - (a safe) putenv() (via stdlib.h) |
| 18 | - strtoul() (via stdlib.h) |
| 19 | (grep for 'define' in uconfig.sh.) |
| 20 | Also, Perl times() is defined to always return zeroes. |
| 21 | |
| 22 | If you are still reading this and you are itching to try out microperl: |
| 23 | |
| 24 | make -f Makefile.micro |
| 25 | |
| 26 | The defaults assume a little endian LP32 platform - ie long and pointers are |
| 27 | 32 bits, so sizeof(long) and sizeof(void *) are 4 |
| 28 | If your platform is little endian LP64 - ie long and pointers are 64 bits, |
| 29 | sizeof(long) and sizeof(void *) are 8, then you first need to run |
| 30 | |
| 31 | make -f Makefile.micro regen_uconfig64 |
| 32 | |
| 33 | to generate a suitable uconfig.h |
| 34 | |
| 35 | If you make changes to uconfig.sh, run |
| 36 | |
| 37 | make -f Makefile.micro regen_uconfig |
| 38 | |
| 39 | to regenerate uconfig.h. (or regen_uconfig64 if you're editing uconfig64.sh) |
| 40 | |
| 41 | |
| 42 | If neither of the above default configs work on your platform, you might want |
| 43 | to try |
| 44 | |
| 45 | make -f Makefile.micro patch_uconfig |
| 46 | |
| 47 | *before* the "make -f Makefile.micro". This tries to minimally patch |
| 48 | the uconfig.sh using your *current* Perl so that your microperl has |
| 49 | the correct basic types and sizes and byteorder. |