Treat wall warnings as errors if SPDLOG_BUILD_WARNINGS is ON

cmake/utils.cmake

@@ -2,21 +2,21 @@
 function(spdlog_extract_version)
     file(READ "${CMAKE_CURRENT_LIST_DIR}/include/spdlog/version.h" file_contents)
     string(REGEX MATCH "SPDLOG_VER_MAJOR ([0-9]+)" _ "${file_contents}")
-    if(NOT CMAKE_MATCH_COUNT EQUAL 1)
+    if (NOT CMAKE_MATCH_COUNT EQUAL 1)
         message(FATAL_ERROR "Could not extract major version number from spdlog/version.h")
-    endif()
+    endif ()
     set(ver_major ${CMAKE_MATCH_1})
 
     string(REGEX MATCH "SPDLOG_VER_MINOR ([0-9]+)" _ "${file_contents}")
-    if(NOT CMAKE_MATCH_COUNT EQUAL 1)
+    if (NOT CMAKE_MATCH_COUNT EQUAL 1)
         message(FATAL_ERROR "Could not extract minor version number from spdlog/version.h")
-    endif()
+    endif ()
 
     set(ver_minor ${CMAKE_MATCH_1})
     string(REGEX MATCH "SPDLOG_VER_PATCH ([0-9]+)" _ "${file_contents}")
-    if(NOT CMAKE_MATCH_COUNT EQUAL 1)
+    if (NOT CMAKE_MATCH_COUNT EQUAL 1)
         message(FATAL_ERROR "Could not extract patch version number from spdlog/version.h")
-    endif()
+    endif ()
     set(ver_patch ${CMAKE_MATCH_1})
 
     set(SPDLOG_VERSION_MAJOR ${ver_major} PARENT_SCOPE)
@@ -27,31 +27,32 @@ endfunction()
 
 # Turn on warnings on the given target
 function(spdlog_enable_warnings target_name)
-    if(SPDLOG_BUILD_WARNINGS)
-        if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
+    if (SPDLOG_BUILD_WARNINGS)
+        if (CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
             list(APPEND MSVC_OPTIONS "/W3")
-            if(MSVC_VERSION GREATER 1900) # Allow non fatal security warnings for msvc 2015
+            if (MSVC_VERSION GREATER 1900) # Allow non fatal security warnings for msvc 2015
                 list(APPEND MSVC_OPTIONS "/WX")
-            endif()
-        endif()
+            endif ()
+        endif ()
 
         target_compile_options(
-            ${target_name}
-            PRIVATE $<$<OR:$<CXX_COMPILER_ID:Clang>,$<CXX_COMPILER_ID:AppleClang>,$<CXX_COMPILER_ID:GNU>>:
-                    -Wall
-                    -Wextra
-                    -Wconversion
-                    -pedantic
-                    -Wfatal-errors>
-                    $<$<CXX_COMPILER_ID:MSVC>:${MSVC_OPTIONS}>)
-    endif()
+                ${target_name}
+                PRIVATE $<$<OR:$<CXX_COMPILER_ID:Clang>,$<CXX_COMPILER_ID:AppleClang>,$<CXX_COMPILER_ID:GNU>>:
+                -Wall
+                -Wextra
+                -Wconversion
+                -pedantic
+                -Werror
+                -Wfatal-errors>
+                $<$<CXX_COMPILER_ID:MSVC>:${MSVC_OPTIONS}>)
+    endif ()
 endfunction()
 
 # Enable address sanitizer (gcc/clang only)
 function(spdlog_enable_sanitizer target_name)
-    if(NOT CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
+    if (NOT CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
         message(FATAL_ERROR "Sanitizer supported only for gcc/clang")
-    endif()
+    endif ()
     message(STATUS "Address sanitizer enabled")
     target_compile_options(${target_name} PRIVATE -fsanitize=address,undefined)
     target_compile_options(${target_name} PRIVATE -fno-sanitize=signed-integer-overflow)