| #!/bin/bash |
| # Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| # This program wraps around pkg-config to generate the correct include and |
| # library paths when cross-compiling using a sysroot. |
| # The assumption is that the sysroot contains the .pc files in usr/lib/pkgconfig |
| # and usr/share/pkgconfig (relative to the sysroot) and that they output paths |
| # relative to some parent path of the sysroot. |
| # This assumption is valid for a range of sysroots, in particular: a |
| # LSB-compliant root filesystem mounted at the sysroot, and a board build |
| # directory of a Chromium OS chroot. |
| |
| root="$1" |
| shift |
| target_arch="$1" |
| shift |
| |
| if [ -z "$root" -o -z "$target_arch" ] |
| then |
| echo "usage: $0 /path/to/sysroot target_arch [pkg-config-arguments] package" >&2 |
| exit 1 |
| fi |
| |
| if [ "$target_arch" = "x64" ] |
| then |
| libpath="lib64" |
| else |
| libpath="lib" |
| fi |
| |
| rewrite=`dirname $0`/rewrite_dirs.py |
| package=${!#} |
| |
| config_path=$root/usr/$libpath/pkgconfig:$root/usr/share/pkgconfig |
| set -e |
| # Some sysroots, like the Chromium OS ones, may generate paths that are not |
| # relative to the sysroot. For example, |
| # /path/to/chroot/build/x86-generic/usr/lib/pkgconfig/pkg.pc may have all paths |
| # relative to /path/to/chroot (i.e. prefix=/build/x86-generic/usr) instead of |
| # relative to /path/to/chroot/build/x86-generic (i.e prefix=/usr). |
| # To support this correctly, it's necessary to extract the prefix to strip from |
| # pkg-config's |prefix| variable. |
| prefix=`PKG_CONFIG_PATH=$config_path pkg-config --variable=prefix "$package" | sed -e 's|/usr$||'` |
| result=`PKG_CONFIG_PATH=$config_path pkg-config "$@"` |
| echo "$result"| $rewrite --sysroot "$root" --strip-prefix "$prefix" |