Adding Glog library to the toolchain

[ErmaEnergy]

Hi !

Thanks a lot for your work, it helped me a lot to finally get into cross compile world.

I need to add a library (GLog) into my project but I'm struggling to make it work.
In the CMakeLists.txt of Glog, I added :

# Cross-compilation system information
set(CMAKE_SYSTEM_NAME Linux)
set(CMAKE_SYSTEM_PROCESSOR arm)

# The sysroot contains all the libraries we might need to link against and 
# possibly headers we need for compilation
set(CMAKE_SYSROOT /var/lib/schroot/chroots/schroot-name-armhf)
set(CMAKE_FIND_ROOT_PATH ${CMAKE_SYSROOT})
set(CMAKE_LIBRARY_ARCHITECTURE arm-linux-gnueabihf)
set(CMAKE_STAGING_PREFIX $ENV{HOME}/RPi-dev/staging-armv6-rpi)

# Set the compilers for C, C++ and Fortran
set(RPI_GCC_TRIPLE "armv6-rpi-linux-gnueabihf")
set(CMAKE_C_COMPILER ${RPI_GCC_TRIPLE}-gcc CACHE FILEPATH "C compiler")
set(CMAKE_CXX_COMPILER ${RPI_GCC_TRIPLE}-g++ CACHE FILEPATH "C++ compiler")
set(CMAKE_Fortran_COMPILER ${RPI_GCC_TRIPLE}-gfortran CACHE FILEPATH "Fortran compiler")

# Set the architecture-specific compiler flags
set(ARCH_FLAGS "-mcpu=arm1176jzf-s")
set(CMAKE_C_FLAGS_INIT ${ARCH_FLAGS})
set(CMAKE_CXX_FLAGS_INIT ${ARCH_FLAGS})
set(CMAKE_Fortran_FLAGS_INIT ${ARCH_FLAGS})

# Don't look for programs in the sysroot (these are ARM programs, they won't run
# on the build machine)
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)

# Only look for libraries, headers and packages in the sysroot, don't look on 
# the build machine
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)

set(CPACK_DEBIAN_PACKAGE_ARCHITECTURE armhf)

It got Build without any error, but when I add just a little 'find_package (glog REQUIRED)' in the CMakeLists.txt of my Project, I get:

CMake Error at CMakeLists.txt:11 (find_package):By not providing "Findglog.cmake" in CMAKE_MODULE_PATH this project has
asked CMake to find a package configuration file provided by "glog", but
CMake did not find one.

Could not find a package configuration file provided by "glog" with any of
the following names:

  glogConfig.cmake
  glog-config.cmake

Add the installation prefix of "glog" to CMAKE_PREFIX_PATH or set
"glog_DIR" to a directory containing one of the above files.  If "glog"
provides a separate development package or SDK, be sure it has been
installed.

Any clue ?

Best regards

[tttapa]

In the CMakeLists.txt of Glog, I added :

Those lines don't belong in a CMakeLists file, they go in a separate toolchain file. See https://cmake.org/cmake/help/book/mastering-cmake/chapter/Cross%20Compiling%20With%20CMake.html and https://cmake.org/cmake/help/latest/manual/cmake-toolchains.7.html for more information.

Any clue ?

I'm afraid I can't really help without seeing the full CMake invocations (of the Glog configuration, build, and installation, and the same for your own project), CMakeLists.txt file, toolchain file, and directory layout.