71 lines
2.6 KiB
Diff
71 lines
2.6 KiB
Diff
Upstream-Status:Inappropriate [debian patches]
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From 37969e249dfc593ebabfcb682893b6c69dc6b313 Mon Sep 17 00:00:00 2001
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From: Niko Tyni <ntyni@debian.org>
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Date: Wed, 18 May 2011 21:44:06 -0700
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Subject: Make h2ph correctly search gcc include directories
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Bug: http://rt.perl.org/rt3/Public/Bug/Display.html?id=90122
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Bug-Debian: http://bugs.debian.org/625808
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Origin: upstream, http://perl5.git.perl.org/perl.git/commit/e7ec705d9b91d35fa99dc50d0a232b6372160a77
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System header conversion with "h2ph -a" is currently broken on Ubuntu
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Natty and Oneiric (unless the gcc-multilib package is installed for
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backward compatibility), resulting in things like
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# perl -e 'require "syscall.ph"'
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Can't locate asm/unistd.ph in @INC [...]
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This happens because Ubuntu has switched to a 'multiarch' setup, see
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<https://wiki.ubuntu.com/MultiarchSpec> for details.
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The asm subdirectory isn't in $Config{usrinc} anymore: /usr/include/asm
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is now /usr/include/x86_64-linux-gnu/asm. (The third component of the
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new path varies with the actual architecture.)
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gcc --print-search-dirs doesn't really tell anything about where gcc
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looks for the include directories, it was just used to find the gcc
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internal directory prefix.
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Parse the output of "gcc -v -E" instead, and append $Config{usrinc}
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for safety. Duplicates shouldn't matter.
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The h2ph "-a" switch isn't currently tested automatically, and that
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seems nontrivial to do portably. Manual testing was done with
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# mkdir ttt
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# ./perl -Ilib ./utils/h2ph -a -d $(pwd)/ttt syscall.h
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The gcc invocation has been tested to work with gcc 4.6, 4.1, and 3.3.
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http://bugs.debian.org/625808
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https://bugs.launchpad.net/bugs/777903
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Patch-Name: fixes/h2ph-multiarch.diff
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---
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utils/h2ph.PL | 12 ++----------
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1 files changed, 2 insertions(+), 10 deletions(-)
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diff --git a/utils/h2ph.PL b/utils/h2ph.PL
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index 87f3c7d..4545d6d 100644
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--- a/utils/h2ph.PL
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+++ b/utils/h2ph.PL
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@@ -761,16 +761,8 @@ sub queue_includes_from
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# non-GCC?) C compilers, but gcc uses additional include directories.
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sub inc_dirs
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{
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- my $from_gcc = `LC_ALL=C $Config{cc} -v 2>&1`;
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- if( !( $from_gcc =~ s:^Reading specs from (.*?)/specs\b.*:$1/include:s ) )
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- { # gcc-4+ :
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- $from_gcc = `LC_ALL=C $Config{cc} -print-search-dirs 2>&1`;
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- if ( !($from_gcc =~ s/^install:\s*([^\s]+[^\s\/])([\s\/]*).*$/$1\/include/s) )
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- {
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- $from_gcc = '';
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- };
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- };
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- length($from_gcc) ? ($from_gcc, $from_gcc . "-fixed", $Config{usrinc}) : ($Config{usrinc});
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+ my $from_gcc = `LC_ALL=C $Config{cc} -v -E - < /dev/null 2>&1 | awk '/^#include/, /^End of search list/' | grep '^ '`;
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+ length($from_gcc) ? (split(' ', $from_gcc), $Config{usrinc}) : ($Config{usrinc});
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}
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