patches/cygwin/1.5.15-1/100-crossbuild.patch
author Anthony Foiani <anthony.foiani@gmail.com>
Thu May 19 23:06:16 2011 +0200 (2011-05-19)
branch1.11
changeset 2464 4b844234d214
parent 402 197e1b49586e
permissions -rw-r--r--
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>
(transplanted from ec30b191f0e3fe9bc73199f0bcb8d789db17aa92)
     1 Message-ID: <4269173F.7020705@zee2.com>
     2 Date: Fri, 22 Apr 2005 16:24:47 +0100
     3 From: Steve Papacharalambous <stevep@zee2.com>
     4 To: "Robert P. J. Day" <rpjday@mindspring.com>
     5 CC: crossgcc list <crossgcc@sources.redhat.com>
     6 Subject: Re: cygwin source directory has moved
     7 In-Reply-To: <Pine.LNX.4.61.0504181746050.11794@localhost.localdomain>
     8 
     9 Hi Robert,
    10 
    11 I've attached two patches:
    12 
    13 1/  For crosstool-0.31 which changes the CYGWIN_URL to one which has the
    14 cygwin source archives.  The version of cygwin that is used to build the
    15 cross toolchain has been changed to cygwin-1.5.15-1-src.tar.bz2 since
    16 most of the mirror sites don't seem to have the original archive used.
    17 [created gcc-3.3.2-cygwin-1.5.15-1.dat - dank]
    18 
    19 
    20 2/ The later cygwin source archive fails to cross build with the error:
    21 /opt/crosstool/i686-pc-cygwin/gcc-3.3.2-cygwin-1.5.15-1/lib/gcc-lib/i686-pc-cygwin/bin/ld:
    22 cannot find -luser32
    23 
    24 unless the second patch is applied,
    25 
    26 
    27 diff -uNr cygwin-1.5.15-1.orig/winsup/mingw/Makefile.in cygwin-1.5.15-1/winsup/mingw/Makefile.in
    28 --- cygwin-1.5.15-1.orig/winsup/mingw/Makefile.in	2005-02-28 22:51:02.000000000 +0000
    29 +++ cygwin-1.5.15-1/winsup/mingw/Makefile.in	2005-04-22 15:29:18.000000000 +0100
    30 @@ -71,7 +71,7 @@
    31  mkinstalldirs = $(SHELL) @MKINSTALLDIRS@
    32  
    33  CC := @CC@
    34 -override CC := ${filter-out -L% -B%,${shell echo $(CC) | sed -e 's%\(-isystem\|-iwithprefixbefore\)  *[^ ]*\( \|$$\)% %g'}}
    35 +override CC := ${filter-out -B%,${shell echo $(CC) | sed -e 's%\(-isystem\|-iwithprefixbefore\)  *[^ ]*\( \|$$\)% %g'}}
    36  # FIXME: Which is it, CC or CC_FOR_TARGET?
    37  CC_FOR_TARGET = $(CC)
    38  AS_FOR_TARGET = $(AS)
    39 
    40