Refactored src/CMakelist to support C++14 and cleanup up redundant/incorrect -std= directives

src/CMakeLists.txt

@@ -2,6 +2,17 @@ cmake_minimum_required(VERSION 3.10)
 
 project(pinetime-app C CXX ASM)
 
+
+set(CMAKE_C_STANDARD 99)
+set(CMAKE_CXX_STANDARD 14)
+
+# set(CMAKE_GENERATOR "Unix Makefiles")
+set(CMAKE_C_EXTENSIONS OFF)
+set(CMAKE_C_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
 # define some variables just for this example to determine file locations
 set(NRF_PROJECT_NAME pinetime-app)
 set(NRF_BOARD pca10040)
@@ -749,7 +760,7 @@ target_compile_options(nrf-sdk PRIVATE
         $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
         $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0>
         $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
-        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -std=c99 -x assembler-with-cpp>
+        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
         )
 
 # NimBLE
@@ -761,7 +772,7 @@ target_compile_options(nimble PRIVATE
         $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3 -Wno-unused-but-set-variable -Wno-maybe-uninitialized>
         $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3 -Wno-unused-but-set-variable -Wno-maybe-uninitialized>
         $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3 -Wno-unused-but-set-variable -Wno-maybe-uninitialized>
-        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -std=c99 -x assembler-with-cpp>
+        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
         )
 
 # lvgl
@@ -773,7 +784,7 @@ target_compile_options(lvgl PRIVATE
         $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
         $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3>
         $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
-        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -std=c99 -x assembler-with-cpp>
+        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
         )
 
 # Build autonomous binary (without support for bootloader)
@@ -788,12 +799,12 @@ target_compile_options(${EXECUTABLE_NAME} PUBLIC
         $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
         $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3>
         $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
-        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -std=c99 -x assembler-with-cpp>
+        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
         )
 
 set_target_properties(${EXECUTABLE_NAME} PROPERTIES
         SUFFIX ".out"
-        LINK_FLAGS "-mthumb -mabi=aapcs -std=gnu++98 -std=c99 -L ${NRF5_SDK_PATH}/modules/nrfx/mdk -T${NRF5_LINKER_SCRIPT} -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -Wl,--gc-sections --specs=nano.specs -lc -lnosys -lm -Wl,-Map=${EXECUTABLE_FILE_NAME}.map"
+        LINK_FLAGS "-mthumb -mabi=aapcs -L ${NRF5_SDK_PATH}/modules/nrfx/mdk -T${NRF5_LINKER_SCRIPT} -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -Wl,--gc-sections --specs=nano.specs -lc -lnosys -lm -Wl,-Map=${EXECUTABLE_FILE_NAME}.map"
         CXX_STANDARD 11
         C_STANDARD 99
         )
@@ -820,12 +831,12 @@ target_compile_options(${EXECUTABLE_MCUBOOT_NAME} PUBLIC
         $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
         $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3>
         $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
-        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -std=c99 -x assembler-with-cpp>
+        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
         )
 
 set_target_properties(${EXECUTABLE_MCUBOOT_NAME} PROPERTIES
         SUFFIX ".out"
-        LINK_FLAGS "-mthumb -mabi=aapcs -std=gnu++98 -std=c99 -L ${NRF5_SDK_PATH}/modules/nrfx/mdk -T${NRF5_LINKER_SCRIPT_MCUBOOT} -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -Wl,--gc-sections --specs=nano.specs -lc -lnosys -lm -Wl,-Map=${EXECUTABLE_MCUBOOT_FILE_NAME}.map"
+        LINK_FLAGS "-mthumb -mabi=aapcs -L ${NRF5_SDK_PATH}/modules/nrfx/mdk -T${NRF5_LINKER_SCRIPT_MCUBOOT} -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -Wl,--gc-sections --specs=nano.specs -lc -lnosys -lm -Wl,-Map=${EXECUTABLE_MCUBOOT_FILE_NAME}.map"
         CXX_STANDARD 11
         C_STANDARD 99
         )
@@ -849,12 +860,12 @@ target_compile_options(${EXECUTABLE_GRAPHICS_NAME} PUBLIC
         $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
         $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3>
         $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
-        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -std=c99 -x assembler-with-cpp>
+        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
         )
 
 set_target_properties(${EXECUTABLE_GRAPHICS_NAME} PROPERTIES
         SUFFIX ".out"
-        LINK_FLAGS "-mthumb -mabi=aapcs -std=gnu++98 -std=c99 -L ${NRF5_SDK_PATH}/modules/nrfx/mdk -T${NRF5_LINKER_SCRIPT} -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -Wl,--gc-sections --specs=nano.specs -lc -lnosys -lm -Wl,-Map=${EXECUTABLE_GRAPHICS_FILE_NAME}.map"
+        LINK_FLAGS "-mthumb -mabi=aapcs -L ${NRF5_SDK_PATH}/modules/nrfx/mdk -T${NRF5_LINKER_SCRIPT} -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -Wl,--gc-sections --specs=nano.specs -lc -lnosys -lm -Wl,-Map=${EXECUTABLE_GRAPHICS_FILE_NAME}.map"
         CXX_STANDARD 11
         C_STANDARD 99
         )