src: Extract test CMake setup to separate file

cmake/gtest.cmake

@@ -0,0 +1,44 @@
+# barrier -- mouse and keyboard sharing utility
+# Copyright (C) 2012-2016 Symless Ltd.
+# Copyright (C) 2011 Nick Bolton
+#
+# This package is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# found in the file LICENSE that should have accompanied this file.
+#
+# This package is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+if (BARRIER_USE_EXTERNAL_GTEST)
+    include (FindPkgConfig)
+    find_package(GTest REQUIRED)
+    pkg_check_modules(GMOCK REQUIRED gmock)
+    include_directories(
+        ${GTEST_INCLUDE_DIRS}
+        ${GMOCK_INCLUDE_DIRS}
+    )
+else()
+    include_directories(
+        ../ext/gtest
+        ../ext/gtest/include
+        ../ext/gmock
+        ../ext/gmock/include
+    )
+
+    add_library(gtest STATIC ../ext/gtest/src/gtest-all.cc)
+    add_library(gmock STATIC ../ext/gmock/src/gmock-all.cc)
+
+    set(GTEST_LIBRARIES gtest)
+    set(GMOCK_LIBRARIES gmock)
+
+    if (UNIX)
+        # ignore warnings in gtest and gmock
+        set_target_properties(gtest PROPERTIES COMPILE_FLAGS "-w")
+        set_target_properties(gmock PROPERTIES COMPILE_FLAGS "-w")
+    endif()
+endif()