complibs/ppl: build only C and C++ interfaces for PPL
By default, PPL wants to build interfaces for any of a variety of
langauges it finds on the local host (python, java, possibly perl, also
more esoteric languages such as ocaml and prolog).
These extra interfaces can double the compile time for the library. For
single-process builds, I found a savings of more than 40%:
default / j1: 716s total, 143.2s avg, 0.52s stdev
just_c / j1: 406s total, 81.2s avg, 0.33s stdev
just_c_cpp / j1: 413s total, 82.6s avg, 0.22s stdev
And for multi-process builds, it approached 50%:
default / j4: 625s total, 125.0s avg, 0.57s stdev
just_c / j4: 338s total, 67.6s avg, 1.25s stdev
just_c_cpp / j4: 327s total, 65.4s avg, 0.36s stdev
Since the PPL we build within ct-ng is only used by GCC, we only need to
build the C and C++ interfaces.
Signed-Off-By: Anthony Foiani <anthony.foiani@gmail.com>
1 Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/gentoo/00_all_gcc-4.1-alpha-mieee-default.patch
2 Set the default behavior on alpha to use -mieee since the large majority of
3 time we want this (bad/weird things can happen with packages built without
6 To satisfy those people who may not want -mieee forced on them all the time,
7 we also provide -mno-ieee.
9 Patch by Mike Frysinger <vapier@gentoo.org>
11 diff -durN gcc-4.3.1.orig/gcc/config/alpha/alpha.h gcc-4.3.1/gcc/config/alpha/alpha.h
12 --- gcc-4.3.1.orig/gcc/config/alpha/alpha.h 2007-12-06 14:25:37.000000000 +0100
13 +++ gcc-4.3.1/gcc/config/alpha/alpha.h 2008-06-10 14:56:36.000000000 +0200
18 +#define CPP_SPEC "%{!no-ieee:-mieee}"
20 #define WORD_SWITCH_TAKES_ARG(STR) \
21 (!strcmp (STR, "rpath") || DEFAULT_WORD_SWITCH_TAKES_ARG(STR))
23 diff -durN gcc-4.3.1.orig/gcc/config/alpha/alpha.opt gcc-4.3.1/gcc/config/alpha/alpha.opt
24 --- gcc-4.3.1.orig/gcc/config/alpha/alpha.opt 2007-08-02 12:49:31.000000000 +0200
25 +++ gcc-4.3.1/gcc/config/alpha/alpha.opt 2008-06-10 14:56:36.000000000 +0200
27 Request IEEE-conformant math library routines (OSF/1)
30 -Target Report RejectNegative Mask(IEEE)
31 +Target Report Mask(IEEE)
32 Emit IEEE-conformant code, without inexact exceptions