diff options
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index bd609eb408eba..133a5ddc50ac3 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -1,5 +1,8 @@ # CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12 FATAL_ERROR) +if(POLICY CMP0074) + cmake_policy(SET CMP0074 NEW) #3.12.0 `find_package()`` uses ``<PackageName>_ROOT`` variables. +endif() # PROJECT(libarchive C) # @@ -84,6 +87,11 @@ SET(CMAKE_REQUIRED_DEFINITIONS) SET(CMAKE_REQUIRED_INCLUDES) SET(CMAKE_REQUIRED_LIBRARIES) SET(CMAKE_REQUIRED_FLAGS) +if (CMAKE_BUILD_TYPE STREQUAL "Debug") + OPTION(ENABLE_WERROR "Treat warnings as errors - default is ON for Debug, OFF otherwise." ON) +else () + OPTION(ENABLE_WERROR "Treat warnings as errors - default is ON for Debug, OFF otherwise." OFF) +endif () # Especially for early development, we want to be a little # aggressive about diagnosing build problems; this can get @@ -93,10 +101,12 @@ IF (CMAKE_C_COMPILER_ID MATCHES "^GNU$") ################################################################# # Set compile flags for all build types. SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wformat -Wformat-security") + if (ENABLE_WERROR) + SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror") + endif () ################################################################# # Set compile flags for debug build. # This is added into CMAKE_C_FLAGS when CMAKE_BUILD_TYPE is "Debug" - SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Werror") SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wextra") SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wunused") SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wshadow") @@ -108,11 +118,13 @@ IF (CMAKE_C_COMPILER_ID MATCHES "^Clang$") ################################################################# # Set compile flags for all build types. SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wformat -Wformat-security") + if (ENABLE_WERROR) + SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror") + endif () ################################################################# # Set compile flags for debug build. # This is added into CMAKE_C_FLAGS when CMAKE_BUILD_TYPE is "Debug" SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g") - SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Werror") SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wextra") SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wunused") SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wshadow") @@ -125,15 +137,21 @@ IF (CMAKE_C_COMPILER_ID MATCHES "^XL$") ################################################################# # Set compile flags for all build types. SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -qflag=e:e -qformat=sec") + if (ENABLE_WERROR) + SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -qhalt=w") + endif () ################################################################# # Set compile flags for debug build. # This is added into CMAKE_C_FLAGS when CMAKE_BUILD_TYPE is "Debug" SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g") - SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -qhalt=w") SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -qflag=w:w") SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -qinfo=pro:use") ENDIF(CMAKE_C_COMPILER_ID MATCHES "^XL$") IF (MSVC) + if (ENABLE_WERROR) + # /WX option is the same as gcc's -Werror option. + SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /WX") + endif () ################################################################# # Set compile flags for debug build. # This is added into CMAKE_C_FLAGS when CMAKE_BUILD_TYPE is "Debug" @@ -165,8 +183,6 @@ IF (MSVC) # Enable level 4 C4706: The test value in a conditional expression was the # result of an assignment. SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /we4706") - # /WX option is the same as gcc's -Werror option. - SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /WX") # /Oi option enables built-in functions. SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /Oi") ################################################################# |