Enable more warnings (#267)

Author: aobolensk

cmake/configure.cmake

@@ -21,16 +21,32 @@ set( CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin" )
 set( CMAKE_CXX_STANDARD 20 )
 
 if( UNIX )
-    set(CMAKE_C_FLAGS  "${CMAKE_C_FLAGS}     \
+    set(COMMON_COMPILER_FLAGS
+        "${COMMON_COMPILER_FLAGS}            \
         -Wall -Wextra                        \
         -Wno-unused-parameter                \
         -Wno-cast-function-type              \
-        -Wsign-compare  -Werror")
-    set(CMAKE_CXX_FLAGS  "${CMAKE_CXX_FLAGS} \
-        -Wall -Wextra                        \
-        -Wno-unused-parameter                \
-        -Wno-cast-function-type              \
-        -Wsign-compare -Werror")
+        -Wsign-compare")
+    if (NOT APPLE)
+        set(COMMON_COMPILER_FLAGS
+            "${COMMON_COMPILER_FLAGS}        \
+            -Wpedantic                       \
+            -Wpointer-arith                  \
+            -Wcast-align                     \
+            -Wwrite-strings                  \
+            -Wswitch-enum                    \
+            -Wnull-dereference               \
+            -Wold-style-definition           \
+            -Wswitch-enum                    \
+            -Wformat=2                       \
+            -Wmissing-prototypes             \
+            -Wmissing-declarations           \
+            -Wno-c11-extensions")
+    endif (NOT APPLE)
+    set (COMMON_LANGUAGE_RUNTIME "${COMMON_COMPILER_FLAGS} -Werror")
+
+    set(CMAKE_C_FLAGS  "${CMAKE_C_FLAGS} ${COMMON_COMPILER_FLAGS}")
+    set(CMAKE_CXX_FLAGS  "${CMAKE_CXX_FLAGS} ${COMMON_COMPILER_FLAGS}")
     if (USE_COVERAGE)
         set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} --coverage")
         set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} --coverage")