From a3dd080fda5a3581de0602b5887cda87dca2a915 Mon Sep 17 00:00:00 2001
From: hasufell <hasufell@hasufell.de>
Date: Sat, 5 Sep 2015 14:07:22 +0200
Subject: [PATCH] Make building examples and tests optional

---
 CMakeLists.txt | 136 +++++++++++++++++++++++++++++++--------------------------
 1 file changed, 74 insertions(+), 62 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c109af4..7fa8247 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -25,6 +25,8 @@ set(LIBSOUNDIO_VERSION "${LIBSOUNDIO_VERSION_MAJOR}.${LIBSOUNDIO_VERSION_MINOR}.
 message("Configuring libsoundio version ${LIBSOUNDIO_VERSION}")
 
 option(BUILD_STATIC_LIBS "Build static libraries" ON)
+option(BUILD_EXAMPLE_PROGRAMS "Build example programs" ON)
+option(BUILD_TESTS "Build tests" ON)
 option(ENABLE_JACK "Enable JACK backend" ON)
 option(ENABLE_PULSEAUDIO "Enable PulseAudio backend" ON)
 option(ENABLE_ALSA "Enable ALSA backend" ON)
@@ -254,80 +256,88 @@ install(FILES
 
 # Example Programs
 
-add_executable(sio_sine example/sio_sine.c)
-set_target_properties(sio_sine PROPERTIES
-    LINKER_LANGUAGE C
-    COMPILE_FLAGS ${EXAMPLE_CFLAGS})
-target_link_libraries(sio_sine libsoundio_shared)
-install(TARGETS sio_sine DESTINATION ${CMAKE_INSTALL_BINDIR})
+if(BUILD_EXAMPLE_PROGRAMS)
+    add_executable(sio_sine example/sio_sine.c)
+    set_target_properties(sio_sine PROPERTIES
+        LINKER_LANGUAGE C
+        COMPILE_FLAGS ${EXAMPLE_CFLAGS})
+    target_link_libraries(sio_sine libsoundio_shared)
+    install(TARGETS sio_sine DESTINATION ${CMAKE_INSTALL_BINDIR})
 
-add_executable(sio_list_devices example/sio_list_devices.c)
-set_target_properties(sio_list_devices PROPERTIES
-    LINKER_LANGUAGE C
-    COMPILE_FLAGS ${EXAMPLE_CFLAGS})
-target_link_libraries(sio_list_devices libsoundio_shared)
-install(TARGETS sio_list_devices DESTINATION ${CMAKE_INSTALL_BINDIR})
+    add_executable(sio_list_devices example/sio_list_devices.c)
+    set_target_properties(sio_list_devices PROPERTIES
+        LINKER_LANGUAGE C
+        COMPILE_FLAGS ${EXAMPLE_CFLAGS})
+    target_link_libraries(sio_list_devices libsoundio_shared)
+    install(TARGETS sio_list_devices DESTINATION ${CMAKE_INSTALL_BINDIR})
 
-add_executable(sio_microphone example/sio_microphone.c)
-set_target_properties(sio_microphone PROPERTIES
-    LINKER_LANGUAGE C
-    COMPILE_FLAGS ${EXAMPLE_CFLAGS})
-target_link_libraries(sio_microphone libsoundio_shared)
-install(TARGETS sio_microphone DESTINATION ${CMAKE_INSTALL_BINDIR})
+    add_executable(sio_microphone example/sio_microphone.c)
+    set_target_properties(sio_microphone PROPERTIES
+        LINKER_LANGUAGE C
+        COMPILE_FLAGS ${EXAMPLE_CFLAGS})
+    target_link_libraries(sio_microphone libsoundio_shared)
+    install(TARGETS sio_microphone DESTINATION ${CMAKE_INSTALL_BINDIR})
 
-add_executable(sio_record example/sio_record.c)
-set_target_properties(sio_record PROPERTIES
-    LINKER_LANGUAGE C
-    COMPILE_FLAGS ${EXAMPLE_CFLAGS})
-target_link_libraries(sio_record libsoundio_shared)
-install(TARGETS sio_record DESTINATION ${CMAKE_INSTALL_BINDIR})
+    add_executable(sio_record example/sio_record.c)
+    set_target_properties(sio_record PROPERTIES
+        LINKER_LANGUAGE C
+        COMPILE_FLAGS ${EXAMPLE_CFLAGS})
+    target_link_libraries(sio_record libsoundio_shared)
+    install(TARGETS sio_record DESTINATION ${CMAKE_INSTALL_BINDIR})
+endif()
 
+if(BUILD_TESTS)
+    include_directories(
+        "${CMAKE_SOURCE_DIR}/test"
+    )
 
-add_executable(unit_tests "${CMAKE_SOURCE_DIR}/test/unit_tests.cpp" ${LIBSOUNDIO_SOURCES})
-target_link_libraries(unit_tests LINK_PUBLIC ${LIBSOUNDIO_LIBS})
-set_target_properties(unit_tests PROPERTIES
-    LINKER_LANGUAGE C
-    COMPILE_FLAGS ${TEST_CFLAGS}
-    LINK_FLAGS ${TEST_LDFLAGS}
-)
+    add_executable(unit_tests "${CMAKE_SOURCE_DIR}/test/unit_tests.cpp" ${LIBSOUNDIO_SOURCES})
+    target_link_libraries(unit_tests LINK_PUBLIC ${LIBSOUNDIO_LIBS})
+    set_target_properties(unit_tests PROPERTIES
+        LINKER_LANGUAGE C
+        COMPILE_FLAGS ${TEST_CFLAGS}
+        LINK_FLAGS ${TEST_LDFLAGS}
+    )
 
-add_executable(latency "${CMAKE_SOURCE_DIR}/test/latency.cpp" ${LIBSOUNDIO_SOURCES})
-target_link_libraries(latency LINK_PUBLIC ${LIBSOUNDIO_LIBS})
-set_target_properties(latency PROPERTIES
-    LINKER_LANGUAGE C
-    COMPILE_FLAGS ${LIB_CFLAGS}
-)
+    add_executable(latency "${CMAKE_SOURCE_DIR}/test/latency.cpp" ${LIBSOUNDIO_SOURCES})
+    target_link_libraries(latency LINK_PUBLIC ${LIBSOUNDIO_LIBS})
+    set_target_properties(latency PROPERTIES
+        LINKER_LANGUAGE C
+        COMPILE_FLAGS ${LIB_CFLAGS}
+    )
 
-add_executable(underflow test/underflow.c)
-set_target_properties(underflow PROPERTIES
-    LINKER_LANGUAGE C
-    COMPILE_FLAGS ${EXAMPLE_CFLAGS})
-target_link_libraries(underflow libsoundio_shared)
+    add_executable(underflow test/underflow.c)
+    set_target_properties(underflow PROPERTIES
+        LINKER_LANGUAGE C
+        COMPILE_FLAGS ${EXAMPLE_CFLAGS})
+    target_link_libraries(underflow libsoundio_shared)
 
-add_executable(backend_disconnect_recover test/backend_disconnect_recover.c)
-set_target_properties(backend_disconnect_recover PROPERTIES
-    LINKER_LANGUAGE C
-    COMPILE_FLAGS ${EXAMPLE_CFLAGS})
-target_link_libraries(backend_disconnect_recover libsoundio_shared)
+    add_executable(backend_disconnect_recover test/backend_disconnect_recover.c)
+    set_target_properties(backend_disconnect_recover PROPERTIES
+        LINKER_LANGUAGE C
+        COMPILE_FLAGS ${EXAMPLE_CFLAGS})
+    target_link_libraries(backend_disconnect_recover libsoundio_shared)
 
-add_executable(overflow test/overflow.c)
-set_target_properties(overflow PROPERTIES
-    LINKER_LANGUAGE C
-    COMPILE_FLAGS ${EXAMPLE_CFLAGS})
-target_link_libraries(overflow libsoundio_shared)
+    add_executable(overflow test/overflow.c)
+    set_target_properties(overflow PROPERTIES
+        LINKER_LANGUAGE C
+        COMPILE_FLAGS ${EXAMPLE_CFLAGS})
+    target_link_libraries(overflow libsoundio_shared)
 
 
 
-add_custom_target(coverage
-    DEPENDS unit_tests
-    WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
-    COMMAND lcov --directory . --zerocounters --rc lcov_branch_coverage=1
-    COMMAND ./unit_tests
-    COMMAND lcov --directory . --capture --output-file coverage.info --rc lcov_branch_coverage=1
-    COMMAND lcov --remove coverage.info '/usr/*' --output-file coverage.info.cleaned --rc lcov_branch_coverage=1
-    COMMAND genhtml -o coverage coverage.info.cleaned --rc lcov_branch_coverage=1
-    COMMAND rm coverage.info coverage.info.cleaned
-)
+    add_custom_target(coverage
+        DEPENDS unit_tests
+        WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+        COMMAND lcov --directory . --zerocounters --rc lcov_branch_coverage=1
+        COMMAND ./unit_tests
+        COMMAND lcov --directory . --capture --output-file coverage.info --rc lcov_branch_coverage=1
+        COMMAND lcov --remove coverage.info '/usr/*' --output-file coverage.info.cleaned --rc lcov_branch_coverage=1
+        COMMAND genhtml -o coverage coverage.info.cleaned --rc lcov_branch_coverage=1
+        COMMAND rm coverage.info coverage.info.cleaned
+    )
+endif()
+
 
 add_custom_target(doc
     WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
@@ -342,6 +352,8 @@ message("\n"
     "* Install Directory            : ${CMAKE_INSTALL_PREFIX}\n"
     "* Build Type                   : ${CMAKE_BUILD_TYPE}\n"
     "* Build static libs            : ${BUILD_STATIC_LIBS}\n"
+    "* Build examples               : ${BUILD_EXAMPLE_PROGRAMS}\n"
+    "* Build tests                  : ${BUILD_TESTS}\n"
 )
 
 message(