Add -fno-common to compile flags.

For now, add it only when enable_compile_warnings=ON, in order to
catch multiple defined variables, like those defined in header
files.

diff --git a/buildtools/Cmake/Flags.cmake b/buildtools/Cmake/Flags.cmake
index c2f7462..6a10c8f 100644 (file)
--- a/buildtools/Cmake/Flags.cmake
+++ b/buildtools/Cmake/Flags.cmake
@@ -10,11 +10,11 @@ else(NOT __VISUALC__ AND NOT __BORLANDC__)
 endif(NOT __VISUALC__ AND NOT __BORLANDC__)
 
 if(enable_compile_warnings)
 endif(NOT __VISUALC__ AND NOT __BORLANDC__)
 
 if(enable_compile_warnings)

-  set(warnCFLAGS "-Wall -Wunused -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wcomment -Wformat -Wwrite-strings -Wclobbered -Wno-unused-function -Wno-unused-parameter -Wno-strict-aliasing -Wno-format-nonliteral -Werror ")
+  set(warnCFLAGS "-fno-common -Wall -Wunused -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wcomment -Wformat -Wwrite-strings -Wclobbered -Wno-unused-function -Wno-unused-parameter -Wno-strict-aliasing -Wno-format-nonliteral -Werror ")

   if(COMPILER_C_VERSION_MAJOR_MINOR STRGREATER "4.5")
   if(COMPILER_C_VERSION_MAJOR_MINOR STRGREATER "4.5")

-    set(warnCFLAGS "${warnCFLAGS} -Wno-error=unused-but-set-variable ")
+    set(warnCFLAGS "${warnCFLAGS}-Wno-error=unused-but-set-variable ")

   else(COMPILER_C_VERSION_MAJOR_MINOR STRGREATER "4.5")
   else(COMPILER_C_VERSION_MAJOR_MINOR STRGREATER "4.5")

-    set(warnCFLAGS "${warnCFLAGS} -Wno-error=clobbered ")
+    set(warnCFLAGS "${warnCFLAGS}-Wno-error=clobbered ")

   endif(COMPILER_C_VERSION_MAJOR_MINOR STRGREATER "4.5")
 endif(enable_compile_warnings)
 
   endif(COMPILER_C_VERSION_MAJOR_MINOR STRGREATER "4.5")
 endif(enable_compile_warnings)