[cairo] Making configure error message more clear

[Arjen Nienhuis]

At least document it in a section called 'Building on Linux/Unix' at
http://cairographics.org/download/

It's as simple as:

======================================

PREFIX=$HOME/my_cairo_build

git clone git://anongit.freedesktop.org/git/cairo
git clone git://anongit.freedesktop.org/git/pixman

cd pixman
PKG_CONFIG_PATH=$PREFIX/lib/pkgconfig ./autogen.sh --prefix=$PREFIX &&
    make && make install
cd ..

cd cairo
PKG_CONFIG_PATH=$PREFIX/lib/pkgconfig ./autogen.sh --prefix=$PREFIX &&
    make && make install
cd ..

=========================================

But this took me quite some time to find out.

On Fri, Mar 26, 2010 at 4:37 AM, Behdad Esfahbod
<behdad.esfahbod at gmail.com> wrote:
> On 03/25/2010 05:53 PM, Bill Spitzak wrote:
>>
>>>   - If we only use $PREFIX/lib/pkgconfig if PKG_CONFIG_PATH is not
>>> set, then
>>> user setting PKG_CONFIG_PATH to another location will break the build
>>> since
>>> they now have to add $PREFIX/lib/pkgconfig manually.
>>
>> I don't understand what is wrong with this solution. If they are setting
>> it, then they have probably set it correctly, thus it either includes
>> this directory, or that directory is not needed.
>
> For example, my .bash_profile always adds ~/.local/lib/pkg-config to
> PKG_CONFIG_PATH.  Doesn't mean I have set /usr/local/lib/pkg-config in it.
>
> behdad
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