Make icc honor parentheses (fix lmm_usage).

[simgrid.git] / tools / cmake / GCCFlags.cmake

diff --git a/tools/cmake/GCCFlags.cmake b/tools/cmake/GCCFlags.cmake
index 8b4b980..d9ae691 100644 (file)
--- a/tools/cmake/GCCFlags.cmake
+++ b/tools/cmake/GCCFlags.cmake
@@ -24,6 +24,12 @@ if(enable_compile_warnings)
   if(CMAKE_COMPILER_IS_GNUCC)
     set(warnCFLAGS "${warnCFLAGS} -Wclobbered -Wno-error=clobbered  -Wno-unused-local-typedefs -Wno-error=attributes")
   endif()
+  if (CMAKE_CXX_COMPILER_ID MATCHES "Intel")
+    # ignore remark  #1418: external function definition with no prior declaration
+    # 3179: deprecated conversion of string literal to char* (should be const char*)
+    # 191: type qualifier is meaningless on cast type
+    set(warnCFLAGS "${warnCFLAGS} -wd1418 -wd191 -wd3179")
+  endif()
 
   set(warnCXXFLAGS "${warnCFLAGS} -Wall -Wextra -Wunused -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wcomment -Wformat -Wwrite-strings -Wno-unused-function -Wno-unused-parameter -Wno-strict-aliasing")
   if(CMAKE_COMPILER_IS_GNUCXX AND (NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "5.0")))
@@ -78,6 +84,10 @@ if(enable_compile_optimizations AND CMAKE_COMPILER_IS_GNUCC
   # This is redundant (already in -03):
   set(optCFLAGS "${optCFLAGS} -finline-functions ")
 endif()
+if (CMAKE_C_COMPILER_ID MATCHES "Intel")
+  # honor parentheses when determining the order of expression evaluation.
+  set(optCFLAGS "${optCFLAGS} -fprotect-parens ")
+endif()
 
 # Do not leak the current directory into the binaries
 if(CMAKE_COMPILER_IS_GNUCC)