| 1 |
root |
1.1 |
The Simplified MakeMaker class hierarchy |
| 2 |
|
|
**************************************** |
| 3 |
|
|
|
| 4 |
|
|
What most people need to know. |
| 5 |
|
|
|
| 6 |
|
|
(Subclasses on top.) |
| 7 |
|
|
|
| 8 |
|
|
MY |
| 9 |
|
|
| |
| 10 |
|
|
ExtUtils::MakeMaker |
| 11 |
|
|
| |
| 12 |
|
|
ExtUtils::MM_{Current OS} |
| 13 |
|
|
| |
| 14 |
|
|
ExtUtils::MM_Unix |
| 15 |
|
|
| |
| 16 |
|
|
ExtUtils::MM_Any |
| 17 |
|
|
|
| 18 |
|
|
The object actually used is of the class MY which allows you to |
| 19 |
|
|
override bits of MakeMaker inside your Makefile.PL by declaring |
| 20 |
|
|
MY::foo() methods. |
| 21 |
|
|
|
| 22 |
|
|
|
| 23 |
|
|
The Real MakeMaker class hierarchy |
| 24 |
|
|
********************************** |
| 25 |
|
|
|
| 26 |
|
|
You wish it was that simple. |
| 27 |
|
|
|
| 28 |
|
|
Here's how it really works. |
| 29 |
|
|
|
| 30 |
|
|
PACK### (created each call to ExtUtils::MakeMaker->new) |
| 31 |
|
|
. | |
| 32 |
|
|
(mixin) | |
| 33 |
|
|
. | |
| 34 |
|
|
MY (created by ExtUtils::MY) | |
| 35 |
|
|
| | |
| 36 |
|
|
ExtUtils::MY MM (created by ExtUtils::MM) |
| 37 |
|
|
| | | |
| 38 |
|
|
ExtUtils::MM ExtUtils::MM_{Current OS} |
| 39 |
|
|
| | . |
| 40 |
|
|
| | |
| 41 |
|
|
ExtUtils::Liblist ExtUtils::MakeMaker . |
| 42 |
|
|
| |
| 43 |
|
|
ExtUtils::Liblist::Kid . |
| 44 |
|
|
|
| 45 |
|
|
(variable subclass) |
| 46 |
|
|
|
| 47 |
|
|
. |
| 48 |
|
|
|
| 49 |
|
|
ExtUtils::MM_{NonUnix}. . . . . . . . . . . . . . . . |
| 50 |
|
|
| |
| 51 |
|
|
ExtUtils::MM_Unix . . . . . . . . . . . . . . . . . . |
| 52 |
|
|
| |
| 53 |
|
|
ExtUtils::MM_Any |
| 54 |
|
|
|
| 55 |
|
|
|
| 56 |
|
|
NOTE: Yes, this is a mess. See |
| 57 |
|
|
http://archive.develooper.com/makemaker@perl.org/msg00134.html |
| 58 |
|
|
for some history. |
| 59 |
|
|
|
| 60 |
|
|
NOTE: When ExtUtils::MM is loaded it chooses a superclass for MM from |
| 61 |
|
|
amongst the ExtUtils::MM_* modules based on the current operating |
| 62 |
|
|
system. |
| 63 |
|
|
|
| 64 |
|
|
NOTE: ExtUtils::MM_{Current OS} represents one of the ExtUtils::MM_* |
| 65 |
|
|
modules except ExtUtils::MM_Any. |
| 66 |
|
|
|
| 67 |
|
|
NOTE: ExtUtils::MM_{NonUnix} represents all of the ExtUtils::MM_* |
| 68 |
|
|
modules except ExtUtils::MM_Any and ExtUtils::MM_Unix. |
| 69 |
|
|
|
| 70 |
|
|
NOTE: The main object used by MakeMaker is a PACK### object, *not* |
| 71 |
|
|
ExtUtils::MakeMaker. It is, effectively, a subclass of MY, |
| 72 |
|
|
ExtUtils::Makemaker, ExtUtils::Liblist and an ExtUtils::MM_* class |
| 73 |
|
|
appropriate for your operating system. |
| 74 |
|
|
|
| 75 |
|
|
NOTE: The methods in MY are simply copied into PACK### rather than |
| 76 |
|
|
MY being a superclass of PACK###. I don't remember the rationale. |
| 77 |
|
|
|
| 78 |
|
|
NOTE: ExtUtils::Liblist should be removed from the inheritence hiearchy |
| 79 |
|
|
and simply be called as functions. |
| 80 |
|
|
|
| 81 |
|
|
NOTE: Modules like File::Spec and Exporter have been omitted for clarity. |
| 82 |
|
|
|
| 83 |
|
|
|
| 84 |
|
|
The MM_* hierarchy |
| 85 |
|
|
****************** |
| 86 |
|
|
|
| 87 |
|
|
MM_Win95 MM_NW5 |
| 88 |
|
|
\ / |
| 89 |
|
|
MM_BeOS MM_Cygwin MM_OS2 MM_VMS MM_Win32 MM_DOS MM_MacOS MM_UWIN |
| 90 |
|
|
\ | | | / / / / |
| 91 |
|
|
--------------------------------------------------------- |
| 92 |
|
|
| | |
| 93 |
|
|
MM_Unix | |
| 94 |
|
|
| | |
| 95 |
|
|
MM_Any |
| 96 |
|
|
|
| 97 |
|
|
NOTE: Each direct MM_Unix subclass is also an MM_Any subclass. This |
| 98 |
|
|
is a temporary hack because MM_Unix overrides some MM_Any methods with |
| 99 |
|
|
Unix specific code. It allows the non-Unix modules to see the |
| 100 |
|
|
original MM_Any implementations. |
| 101 |
|
|
|
| 102 |
|
|
NOTE: Modules like File::Spec and Exporter have been omitted for clarity. |
