Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1 | #!/bin/bash |
| 2 | # Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 3 | # Use of this source code is governed by a BSD-style license that can be |
| 4 | # found in the LICENSE file. |
| 5 | |
| 6 | # This program wraps around pkg-config to generate the correct include and |
| 7 | # library paths when cross-compiling using a sysroot. |
| 8 | # The assumption is that the sysroot contains the .pc files in usr/lib/pkgconfig |
| 9 | # and usr/share/pkgconfig (relative to the sysroot) and that they output paths |
| 10 | # relative to some parent path of the sysroot. |
| 11 | # This assumption is valid for a range of sysroots, in particular: a |
| 12 | # LSB-compliant root filesystem mounted at the sysroot, and a board build |
| 13 | # directory of a Chromium OS chroot. |
| 14 | |
| 15 | set -o nounset |
| 16 | set -o errexit |
| 17 | |
| 18 | root="$1" |
| 19 | shift |
| 20 | target_arch="$1" |
| 21 | shift |
| 22 | libpath="$1" |
| 23 | shift |
| 24 | |
| 25 | if [ -z "$root" -o -z "$target_arch" ] |
| 26 | then |
| 27 | echo "usage: $0 /path/to/sysroot target_arch libdir [pkg-config-arguments] package" >&2 |
| 28 | exit 1 |
| 29 | fi |
| 30 | |
| 31 | rewrite=`dirname $0`/rewrite_dirs.py |
| 32 | package=${!#} |
| 33 | |
| 34 | libdir=$root/usr/$libpath/pkgconfig:$root/usr/share/pkgconfig |
| 35 | |
| 36 | set -e |
| 37 | # Some sysroots, like the Chromium OS ones, may generate paths that are not |
| 38 | # relative to the sysroot. For example, |
| 39 | # /path/to/chroot/build/x86-generic/usr/lib/pkgconfig/pkg.pc may have all paths |
| 40 | # relative to /path/to/chroot (i.e. prefix=/build/x86-generic/usr) instead of |
| 41 | # relative to /path/to/chroot/build/x86-generic (i.e prefix=/usr). |
| 42 | # To support this correctly, it's necessary to extract the prefix to strip from |
| 43 | # pkg-config's |prefix| variable. |
| 44 | prefix=`PKG_CONFIG_LIBDIR=$libdir pkg-config --variable=prefix "$package" | sed -e 's|/usr$||'` |
| 45 | result=`PKG_CONFIG_LIBDIR=$libdir pkg-config "$@"` |
| 46 | echo "$result"| $rewrite --sysroot "$root" --strip-prefix "$prefix" |