LD can't find libz-ng.a

[kbieniex]

I'm trying to compile a project, which uses zlib-ng as a third party library (not in compat mode) using CMake with:

cmake .. -G Ninja
cmake --build .
ninja install

CMake configuration:

set(ZLIB_ENABLE_TESTS ON)
set(ZLIB_NG_BUILD_SHARED_LIBS OFF)

set(ZLIB_NG_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/src/thirdparty/zlib-ng")
set(ZLIB_NG_BINARY_DIR "${CMAKE_CURRENT_BINARY_DIR}/src/thirdparty/zlib-ng")

add_subdirectory(${ZLIB_NG_SOURCE_DIR} ${ZLIB_NG_BINARY_DIR} EXCLUDE_FROM_ALL)

set(ZLIB_NG_INCLUDE_DIR ${CMAKE_CURRENT_BINARY_DIR}/zlib-ng CACHE STRING "Path to zlib include directory")
set(ZLIB_NG_LIBRARY ${CMAKE_CURRENT_BINARY_DIR}/zlib-ng CACHE STRING "Path to zlib directory")

include_directories(${ZLIB_NG_BINARY_DIR})
include_directories(${ZLIB_NG_SOURCE_DIR})

set(ZLIB_NG "libz-ng")

target_link_libraries (PROJECT_NAME ${ZLIB_NG})

I'm getting an error /usr/bin/ld: cannot find -llibz-ng: No such file or directory

What am I doing wrong?

[nmoinvaz]

I think target_link_libraries needs the name of the CMake project (ie zlib), instead of the name of the library output; probably due to EXCLUDE_FROM_ALL.

[kbieniex]

When I change target_link_libraries (PROJECT_NAME ${ZLIB_NG}) to target_link_libraries (PROJECT_NAME "zlib-ng"), the same error apears but with zlib-ng
/usr/bin/ld: cannot find -lzlib-ng: No such file or directory

[kbieniex]

Ok, got it. Didn't realise the project name is just "zlib" and not "zlib-ng"