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-if building a 32 bit Perl, with a 64bit dmake, force
PROCESSOR_ARCHITECTURE to x86, otherwise the next couple macros will
try to build a 64 bit perl with 32 bit CCs
-PDBOUT is required to run multiple VC cl.exe processes, otherwise all
VC cl.exe processes will error out trying to lock and write to a
file called "vc*0.pdb", PDBOUT is empty for GCC builds since they dont
have PDB files
-to reduce excess IO calls checking for miniperl.exe plus remove a
"Found file corresponding to virtual target" warning that dmake emits,
make this makefile unaware that miniperl.exe exists. dmake has a very bad
exponential number of IO/stat() calls for every target that is yet
unbuilt, see procmon logs in [perl #123854], so instead of a stat on
../miniperl.exe, then ../lib/buildcustomize.pl, it will be just a stat on
../lib/buildcustomize.pl
-remove makefile awareness of ..\lib\Config_heavy.pl,
if ..\lib\Config_heavy.pl is ever updated, so is ..\lib\Config.pm
less IO calls for dmake, see also commit 962e59f394
-to break up the sequential nature of this makefile, allow (XS) Extensions
to build, before (AKA parallel with) perl5**.dll and perl.exe are built.
This is achieved by running makedef.pl very early, and generating
perl5**.lib/libperl5**.a from the def file, and NOT generating
perl5**.lib/libperl5**.a from perl5**.dll at link time of perl5**.dll.
The conquence of this is, declspec(dllexport) is now unusable, but exports
should be centrally managed anyways (embed.fnc/etc) so this isn't a big
issue.
-EUMM makefiles shouldn't be subject to parallelism, untested and disable
for now, plus creating PLMAKE allows "dmake -n" to work for diagnosing
this makefile
-slim down all target. Extensions* and UNIDATAFILES now know how to build
themselves, the parallel nature says you can't rely on left to right
execution of deps in a parent node to make a child (dep) node build
-miniperl.exe used to be unbuildable from a clean tree except from all
target, since miniperl.exe didn't depend on mini config.h. Also mini dir
can't be a target, since each .obj built will dirty the mini dir's time
stamp and infinite loop happens, instead use a .exists file
-dmake rescans for all outstanding targets, at each recipe line to run,
this early in the build process, there are an enormous amount of files to
test for, so the echos are very slow, 350ms each, so combine as many of
the lines of mini/.exists AKA mini config.h together as possible. ".IF"
can't be put inside "one line", so not all lines were merged. Shell "if"
could be used to further group the echos but this enough to make the pause
/cpu spining not really noticable. USE_CPLUSPLUS contains an unrolled line
(the #endif) on both sides. See also procmon logs in [perl #123854]
-perllib.obj/.o needs perllibst.h which is built by miniperl+a script,
perllibst.h target doesn't need any Extensions*, so perllib.obj is still
quick to build
-perldll.def doesn't need perllibst.h since makedef.pl uses
$Config{static_ext} to find boot xsubs to export, makedef.pl does not
read perllibst.h, remove perllibst.h for more parallelism/less things to
build before perldll.def runs, and therefore Extensions (XS) starts to
run quicker, and Extensions (XS) is the longest target to build
-perlmain and perlmainst .obj/.o needs full perl headers to compile, they
aren't like generate_uudmap.exe and perlglob.exe which are perlapi unaware
-perl.exe doesn't need perl5**.dll to build, just the imp lib to
perl5**.dll, perl.exe is in the same category as XS modules, more
parallelism
-ppport.h isn't needed in blead perl, since blead is the newest perl in the
world, this allows Extensions (XS) to run sooner, ppport.h is replaced by
a dummy empty file, delete ppport.h from final installed CORE dir during
installation so the dummy ppport.h doesn't wind up in installed perl and isnt
seen by CPAN XS modules during their building by the perl user after perl
was build and installed, note mkppport script and mkppport.lst are unused
in makefile.mk now
-break up the dependencies of all the Extensions* targets, static
(just Win32CORE normally), dynamic XS and non-XS, these 3 run in parallel
now, non-XS doesn't need perl5**.lib/.a or any C headers, just PP
Config.pm
-DLL XS requires PP DynaLoader.pm for dl_findfile() otherwise
Mkbootstrap.pm fatally errors, Mkbootstrap.pm could be revised to not load
DynaLoader on Win32, since " if ($Config{'dlsrc'} =~ /^dl_dld/){" is
false, but this is the easier path right now
-DynaLoader requires module lib to build itself, but Extensions_nonxs
happens to not need mod lib, so move where mod lib is built
-in utils target, change it so it can run with miniperl, more parallelism,
pl2bat doesn't require full perl, the full perl stuff is from
commit 3fe9a6f19e from 5.003 and no ML archive is available to explain why
full perl was used instead of mini perl
-add 4 modules to buildcustomize so nonxs and xs build simultaneously
-remove ancient cruft from commit 26618a56da from 1997 from README.w32
dmake is automatically set inside CFG_VARS today. OSRELEASE is irrelavent
today, Perl doesn't use any of the defaults (like name of CC) from the
maketool.
-Reduce 21 calls of "cmd.exe /x/d/c cd" by miniperl to just 1 by saving and
reusing cwd. This reduced the amount of time to run
"..\miniperl.exe -I..\lib -f ..\write_buildcustomize.pl .." from 312 ms
to 62 ms elapsed time using timeit.exe for me.
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The new perlpodstyle.pod has been located to pod/
Changes were necessary to mkppport because of a new dependency on
Encode in podlators that stopped it being built before Encode was built.
[DELTA]
2010-10-10 Russ Allbery <rra@stanford.edu>
* VERSION: podlators 2.4.0 released.
* scripts/pod2man: Remove the code to generate the #! line and
supporting code and instead rely on ExtUtils::MakeMaker to handle
that during package build.
* scripts/pod2text: Likewise.
* scripts/pod2man.PL: Renamed to pod2man.
* scripts/pod2text.PL: Renamed to pod2text.
* Makefile.PL: Remove PL_FILES section.
* pod/perlpodstyle.pod: New style guide for POD documentation,
split mostly from the NOTES section of the pod2man man page.
* scripts/pod2man.PL: Remove NOTES section, now maintained as the
separate perlpodstyle document.
* Makefile.PL: Add perlpodstyle.1 to the generated man pages.
* lib/Pod/Man.pm (cmd_para): Do not strip escaped trailing
whitespace, such as that created by S<> at the end of a line,
since the backslash is then taken by *roff as escaping the
newline. Thanks, Kevin Ryde.
* t/man.t: Test S<> at the end of lines.
* lib/Pod/Man.pm (output): If the utf8 option is given, encode
output in UTF-8 if there is no encoding layer. Now requires the
Encode module.
(start_document): Rather than forcibly change the PerlIO encoding
layer, probe the PerlIO layers with protection for Perl versions
without PerlIO and set a flag indicating whether to encode on the
fly on output.
* lib/Pod/Text.pm: Likewise.
* Makefile.PL: Mark Encode as required.
* t/man-perlio.t: Test Pod::Man output to a file handle with a
PerlIO encoding layer already applied.
* t/text-perlio.t: Likewise for Pod::Text.
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