PKG_CONFIG_PATH in pkg-config-crosswrapper

[mrw]

I was wondering, why my Jenkins build failed after upgrade to Ubutnu 14.04, now I see that in pkg-config-crosswrapper my variable PKG_CONFIG_PATH is brutally overwritten.

How am I supposed to set a PKG_CONFIG_PATH in a cross-compile environment?

IMHO: PKG_CONFIG_PATH must not be overwritten in pkg-config-crosswrapper.

I now manually edited /usr/share/pkg-config-crosswrapper (added ":${PKG_CONFIG_PATH}") to become:
{{{
#! /bin/sh
# pkg-config wrapper for cross-building
# Sets pkg-config search path to target arch path only.

triplet=`basename $0 | sed -e 's:-pkg-config::'`
PKG_CONFIG_PATH=/usr/lib/${triplet}/pkgconfig:/usr/${triplet}/lib/pkgconfig:${PKG_CONFIG_PATH} pkg-config $@
}}}

My jenkins build script is:

{{{ (added ":${PKG_CONFIG_PATH}")
PKG_CONFIG_PATH=${HOME}/qt-${MINGW}/lib/pkgconfig \
  CPPFLAGS="-I${WORKSPACE}/usr/include" \
  LDFLAGS="-L${WORKSPACE}/usr/lib" \
  ./configure --prefix=${WORKSPACE}/usr --host=${MINGW}
make all install
}}}

Manually changing a package-provided file is a dirty hack. So do you change your code or do I have another/better way for providing my additional path?

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Yahuxo (yahuxo)]

I also stumbled over this issue. In my opinion setting PKG_CONFIG_PATH is wrong for two reasons:
* it overwrites the PKG_CONFIG_PATH from the environment
* it makes pkg-config still search the non-cross-compile default paths

So for example if I want to cross-compile for mingw-w64 and do not have a cross-compiled version of "libsndfile" but a native version, calling "x86_64-w64-mingw32-pkg-config sndfile ..." will return the info for the native library and compilation will fail at a later step.

My suggested fix would be to use PKG_CONFIG_LIBDIR instead, see attached file "pkg-config-crosswrapper.patch" and https://bugs.freedesktop.org/show_bug.cgi?id=3093

[Ubuntu Foundations Team Bug Bot (crichton)]

The attachment "pkg-config-crosswrapper.patch" seems to be a patch. If it isn't, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are a member of the ~ubuntu-reviewers, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issues please contact him.]