1microperl is supposed to be a really minimal perl, even more
2minimal than miniperl.  No Configure is needed to build microperl,
3on the other hand this means that interfaces between Perl and your
4operating system are left very -- minimal.
5
6All this is experimental.  If you don't know what to do with microperl
7you probably shouldn't.  Please don't report bugs in microperl; fix the
8bugs.  (Bugs reports about microperl without fixes/patches are equivalent
9to wishlist requests - they won't be discarded, but they likely won't get
10worked on either, unless they chance to coincide with someone's personal itch)
11
12We 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.)
20Also, Perl times() is defined to always return zeroes.
21
22If you are still reading this and you are itching to try out microperl:
23
24	make -f Makefile.micro
25
26The defaults assume a little endian LP32 platform - ie long and pointers are
2732 bits, so sizeof(long) and sizeof(void *) are 4
28If your platform is little endian LP64 - ie long and pointers are 64 bits,
29sizeof(long) and sizeof(void *) are 8, then you first need to run
30
31	make -f Makefile.micro regen_uconfig64
32
33to generate a suitable uconfig.h
34
35If you make changes to uconfig.sh, run
36
37	make -f Makefile.micro regen_uconfig
38
39to regenerate uconfig.h.  (or regen_uconfig64 if you're editing uconfig64.sh)
40
41
42If neither of the above default configs work on your platform, you might want
43to try
44
45	make -f Makefile.micro patch_uconfig
46
47*before* the "make -f Makefile.micro".  This tries to minimally patch
48the uconfig.sh using your *current* Perl so that your microperl has
49the correct basic types and sizes and byteorder.
50