On 2/19/11 6:13 PM, Chris Tapp wrote:
> I'm trying to make a simple recipe that uses libxml. However, the
> headers for this are in libxlm2/libxml, so I need to add an include
> path.
>
> I can get this to work using an absolute path, as shown below:
>
> do_compile() {
> ${CC} -I/usr/include/libxml2 helloworld.c -o helloworld
> }
When compiling and using things like above you want to use
"-I=/usr/include/libxml2"
The = tells the compiler to use the sysroot prefix as well as what was
specified.
Note, NOT ALL VERSIONS OF THE COMPILER SUPPORT THIS! The version in Yocto does,
and I believe most recent versions of the GNU compiler.
(If no sysroot is defined, say for a host binary "=" simply evaluates to
nothing.)
The same syntax is supported for linking, so you can (and should) use
-L=/usr/lib/libfoo.so. This syntax is much older, so all modern versions of
bintutils support it properly.
> However, this isn't good as it uses /usr. How should I do this? I've
> tried to find a ${...} to use, but I've not found anything that works.
>
> Chris Tapp
>
> [email protected]
> www.keylevel.com
>
>
>
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