Add -Wformat-signedness to warnCFLAGS for GCC >= 5.0.

diff --git a/tools/cmake/GCCFlags.cmake b/tools/cmake/GCCFlags.cmake
index 5731bda..309a69a 100644 (file)
--- a/tools/cmake/GCCFlags.cmake
+++ b/tools/cmake/GCCFlags.cmake
@@ -15,6 +15,9 @@ set(warnCXXFLAGS "")
 
 if(enable_compile_warnings)
   set(warnCFLAGS "-fno-common -Wall -Wunused -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wcomment -Wformat -Wwrite-strings -Wno-unused-function -Wno-unused-parameter -Wno-strict-aliasing")
 
 if(enable_compile_warnings)
   set(warnCFLAGS "-fno-common -Wall -Wunused -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wcomment -Wformat -Wwrite-strings -Wno-unused-function -Wno-unused-parameter -Wno-strict-aliasing")

+  if(CMAKE_COMPILER_IS_GNUCC AND (NOT (CMAKE_C_COMPILER_VERSION VERSION_LESS "5.0")))
+    set(warnCFLAGS "${warnCFLAGS} -Wformat-signedness")
+  endif()

   if(CMAKE_C_COMPILER_ID MATCHES "Clang|GCC")
     set(warnCFLAGS "${warnCFLAGS} -Wno-format-nonliteral")
   endif()
   if(CMAKE_C_COMPILER_ID MATCHES "Clang|GCC")
     set(warnCFLAGS "${warnCFLAGS} -Wno-format-nonliteral")
   endif()


@@ -22,7 +25,10 @@ if(enable_compile_warnings)
     set(warnCFLAGS "${warnCFLAGS} -Wclobbered -Wno-error=clobbered  -Wno-unused-local-typedefs -Wno-error=attributes")
   endif()
 
     set(warnCFLAGS "${warnCFLAGS} -Wclobbered -Wno-error=clobbered  -Wno-unused-local-typedefs -Wno-error=attributes")
   endif()
 

-  set(warnCXXFLAGS "${warnCFLAGS} -Wall -Wextra -Wunused -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wcomment  -Wformat -Wwrite-strings -Wno-unused-function -Wno-unused-parameter -Wno-strict-aliasing")
+  set(warnCXXFLAGS "${warnCFLAGS} -Wall -Wextra -Wunused -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wcomment -Wformat -Wwrite-strings -Wno-unused-function -Wno-unused-parameter -Wno-strict-aliasing")
+  if(CMAKE_COMPILER_IS_GNUCXX AND (NOT (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER "5.0")))
+    set(warnCFLAGS "${warnCFLAGS} -Wformat-signedness")
+  endif()

   if(CMAKE_CXX_COMPILER_ID MATCHES "Clang|GCC")
     set(warnCXXFLAGS "${warnCXXFLAGS} -Wno-format-nonliteral")
   endif()
   if(CMAKE_CXX_COMPILER_ID MATCHES "Clang|GCC")
     set(warnCXXFLAGS "${warnCXXFLAGS} -Wno-format-nonliteral")
   endif()