complibs/ppl: fix 0.11-0.11.2 to compile with --disable-shared
PPL 0.11 (through 0.11.2) had a small bug where it still tried to build
and test its Java interface even when shared libraries are disabled.
Since that's exactly what ct-ng does, it explodes.
This is the patch from the PPL authors (see final link below).
More information can be found in these messages/threads:
Anthony's initial report and analysis with Yann:
http://www.cygwin.com/ml/crossgcc/2011-05/msg00046.html
Ron Flory hit the same problem:
http://www.cygwin.com/ml/crossgcc/2011-05/msg00054.html
Anthony's report to the ppl-devel list:
http://www.cs.unipr.it/pipermail/ppl-devel/2011-May/017450.html
Roberto's reply with a link to the fix in the PPL git repo:
http://www.cs.unipr.it/pipermail/ppl-devel/2011-May/017455.html
Signed-Off-By: Anthony Foiani <anthony.foiani@gmail.com>
(transplanted from 139b85d70b623e51f7585e7c64ecb8c6a6cf4567)
1 Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/gentoo/00_all_gcc-trampolinewarn.patch
2 This trivial patch causes gcc to emit a warning whenever
3 it generates a trampoline. These are otherwise hard to
4 locate. It is rigged to default ON - to have it default
5 to OFF remove the text 'Init(1)' from the common.opt
6 patch, leaving just 'Common Var(warn_trampolines)'.
7 Kevin F. Quinn <kevquinn@gentoo.org> 17 Jan 2006
9 diff -durN gcc-4.3.1.orig/gcc/builtins.c gcc-4.3.1/gcc/builtins.c
10 --- gcc-4.3.1.orig/gcc/builtins.c 2008-04-23 00:36:27.000000000 +0200
11 +++ gcc-4.3.1/gcc/builtins.c 2008-06-10 14:56:54.000000000 +0200
13 trampolines_created = 1;
14 INITIALIZE_TRAMPOLINE (r_tramp, r_func, r_chain);
16 + if (warn_trampolines)
17 + warning (OPT_Wtrampolines, "generating trampoline in object (requires executable stack)");
22 diff -durN gcc-4.3.1.orig/gcc/common.opt gcc-4.3.1/gcc/common.opt
23 --- gcc-4.3.1.orig/gcc/common.opt 2008-01-22 15:11:44.000000000 +0100
24 +++ gcc-4.3.1/gcc/common.opt 2008-06-10 14:56:54.000000000 +0200
26 Common Var(warn_system_headers) Warning
27 Do not suppress warnings from system headers
30 +Common Var(warn_trampolines) Init(1)
31 +Warn whenever a trampoline is generated
34 Common Var(warn_uninitialized) Warning
35 Warn about uninitialized automatic variables