[CMake] cmake finds libxml2 but still says its missing

[Rolf Eike Beer]

Am 2018-05-08 14:51, schrieb Florian Lindner:
> Hello,
> 
> I try to compile my software like
> 
> cmake -DCMAKE_TOOLCHAIN_FILE=../../toolchain.cmake 
> -DBUILD_SHARED_LIBS=off ../..
> 
>> cat ../../toolchain.cmake
> SET(CMAKE_SYSTEM_NAME Hazelhen)
> SET(CMAKE_C_COMPILER       cc)
> SET(CMAKE_CXX_COMPILER     CC)
> SET(CMAKE_Fortran_COMPILER ftn)
> 
> which gives me the error:
> 
> CMake Error at
> /usr/share/cmake/Modules/FindPackageHandleStandardArgs.cmake:148
> (message):
>   Could NOT find LibXml2 (missing: LIBXML2_LIBRARIES) (found version 
> "2.9.4")
> Call Stack (most recent call first):
>   /usr/share/cmake/Modules/FindPackageHandleStandardArgs.cmake:388
> (_FPHSA_FAILURE_MESSAGE)
>   /usr/share/cmake/Modules/FindLibXml2.cmake:69
> (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
>   CMakeLists.txt:73 (find_package)

It can determine the version, e.g. because it can ask pkg-config or 
finds the header, but it does not find the library to link to.

> I am a bit puzzled, because it says it found libxml 2.9.4, but then
> again does not set the $LIBXML2_LIBRARIES.
> 
> Usage is
> 
> find_package(LibXml2 REQlesUIRED)

sure?

Eike