Fix fuzzing build

CMakeLists.txt

@@ -52,7 +52,7 @@ find_package(KF5 REQUIRED COMPONENTS Archive Bookmarks CoreAddons Config ConfigW
 set(QT_MIN_VERSION 5.11.0)
 find_package(Qt5 REQUIRED COMPONENTS Core DBus Widgets Svg Quick QuickControls2 Concurrent QuickWidgets Multimedia)
 add_definitions(-DQT_NO_CAST_TO_ASCII -DQT_NO_URL_CAST_FROM_STRING)
-set(DEFAULT_CXX_FLAGS "${DEFAULT_CXX_FLAGS} ${Qt5Widgets_EXECUTABLE_COMPILE_FLAGS}")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${Qt5Widgets_EXECUTABLE_COMPILE_FLAGS}")
 
 # MLT
 find_package(MLT ${MLT_MIN_VERSION} REQUIRED)
@@ -120,12 +120,8 @@ set(FFMPEG_SUFFIX "" CACHE STRING "FFmpeg custom suffix")
 configure_file(config-kdenlive.h.cmake config-kdenlive.h @ONLY)
 set(CMAKE_POSITION_INDEPENDENT_CODE TRUE)
 
-if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unknown-warning-option")
-endif()
-if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-suggest-override")
-    set(KDENLIVE_CXX_FLAGS  "${DEFAULT_CXX_FLAGS} -Wall -pedantic -Wextra")
+if(BUILD_FUZZING)
+    set(ECM_ENABLE_SANITIZERS fuzzer;address)
 endif()
 
 # Sources

fuzzer/CMakeLists.txt

 include_directories(${MLT_INCLUDE_DIR})
+kde_enable_exceptions()
 add_executable(fuzz main_fuzzer.cpp fuzzing.cpp)
 add_executable(fuzz_reproduce main_reproducer.cpp fuzzing.cpp)
-target_link_libraries(fuzz kdenliveLib)
+target_link_libraries(fuzz kdenliveLib -fsanitize=fuzzer)
 target_link_libraries(fuzz_reproduce kdenliveLib)
 set_property(TARGET fuzz PROPERTY CXX_STANDARD 14)
 set_property(TARGET fuzz_reproduce PROPERTY CXX_STANDARD 14)
-set_target_properties(fuzz PROPERTIES COMPILE_FLAGS "-O1 -g -Wall -pedantic -Wextra -fexceptions -fsanitize=fuzzer,address")
-set_target_properties(fuzz PROPERTIES LINK_FLAGS "-fsanitize=fuzzer")

src/lib/external/kiss_fft/CMakeLists.txt

 # Create a static library from kiss_fft
 find_package(Qt5Core REQUIRED)
-include_directories(
-  ${CMAKE_BINARY_DIR}
-)
-add_library(kiss_fft STATIC
-  _kiss_fft_guts.h
-  kiss_fft.c
-  tools/kiss_fftr.c
-)
+include_directories(${CMAKE_BINARY_DIR})
+add_library(kiss_fft STATIC _kiss_fft_guts.h kiss_fft.c tools/kiss_fftr.c)
 set_property(TARGET kiss_fft PROPERTY C_STANDARD 99)
 target_link_libraries(kiss_fft Qt5::Core)

src/lib/external/media_ctrl/CMakeLists.txt

 if(HAVE_LINUX_INPUT_H)
-  # Create a static library media_ctrl
-  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} --std=c99")
-  include_directories(
-    ${CMAKE_BINARY_DIR}
-  )
-  add_library(media_ctrl STATIC
-    mediactrl.c
-  )
+  include_directories(${CMAKE_BINARY_DIR})
+  add_library(media_ctrl STATIC mediactrl.c)
+  set_property(TARGET media_ctrl PROPERTY C_STANDARD 99)
 endif()

tests/CMakeLists.txt

-if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fexceptions")
-endif()
-set(Tests_SRCS
+include_directories(${MLT_INCLUDE_DIR} ..)
+kde_enable_exceptions()
+add_executable(runTests
     TestMain.cpp
     abortutil.cpp
     compositiontest.cpp
@@ -17,8 +16,6 @@ set(Tests_SRCS
     treetest.cpp
     trimmingtest.cpp
 )
-include_directories(${MLT_INCLUDE_DIR} ..)
-add_executable(runTests ${Tests_SRCS})
 set_property(TARGET runTests PROPERTY CXX_STANDARD 14)
 target_link_libraries(runTests kdenliveLib)
 add_test(NAME runTests COMMAND ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/runTests -d yes)