Add missing Linux dependencies

The Linux client of breakpad requires the gflags and glog libraries and
hence those packages needs to be added to Linux builds.

CMakeLists.txt

@@ -216,6 +216,13 @@ target_include_directories(libbreakpad_client
         $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>
         $<INSTALL_INTERFACE:${include_install_dir}/breakpad>
 )
+if(NOT WIN32 AND NOT APPLE)
+    hunter_add_package(gflags)
+    hunter_add_package(glog)
+    find_package(gflags CONFIG REQUIRED)
+    find_package(glog CONFIG REQUIRED)
+    target_link_libraries(libbreakpad_client PUBLIC gflags glog::glog)
+endif()
 
 
 install(

cmake/config.cmake.in

@@ -2,3 +2,10 @@
 
 include("${CMAKE_CURRENT_LIST_DIR}/@[email protected]")
 check_required_components("@PROJECT_NAME@")
+
+include(CMakeFindDependencyMacro)
+
+if(NOT "@WIN32@" AND NOT "@APPLE@")
+    find_dependency(gflags)
+    find_dependency(glog)
+endif()