ENH: Changed preprocessed source extension to .i and assembly extension to .s for more portability.

Modules/Platform/gcc.cmake

@@ -4,8 +4,8 @@ IF(CMAKE_COMPILER_IS_GNUCC)
   SET (CMAKE_C_FLAGS_MINSIZEREL_INIT "-Os -DNDEBUG")
   SET (CMAKE_C_FLAGS_RELEASE_INIT "-O3 -DNDEBUG")
   SET (CMAKE_C_FLAGS_RELWITHDEBINFO_INIT "-O2 -g")
-  SET (CMAKE_C_CREATE_PREPROCESSED_SOURCE "<CMAKE_C_COMPILER> <FLAGS> -o <PREPROCESSED_SOURCE> -E <SOURCE>")
-  SET (CMAKE_C_CREATE_ASSEMBLY_SOURCE "<CMAKE_C_COMPILER> <FLAGS> -o <ASSEMBLY_SOURCE> -S <SOURCE>")
+  SET (CMAKE_C_CREATE_PREPROCESSED_SOURCE "<CMAKE_C_COMPILER> <FLAGS> -E <SOURCE> > <PREPROCESSED_SOURCE>")
+  SET (CMAKE_C_CREATE_ASSEMBLY_SOURCE "<CMAKE_C_COMPILER> <FLAGS> -S <SOURCE> -o <ASSEMBLY_SOURCE>")
 ENDIF(CMAKE_COMPILER_IS_GNUCC)
 
 IF(CMAKE_COMPILER_IS_GNUCXX)
@@ -14,7 +14,7 @@ IF(CMAKE_COMPILER_IS_GNUCXX)
   SET (CMAKE_CXX_FLAGS_MINSIZEREL_INIT "-Os -DNDEBUG")
   SET (CMAKE_CXX_FLAGS_RELEASE_INIT "-O3 -DNDEBUG")
   SET (CMAKE_CXX_FLAGS_RELWITHDEBINFO_INIT "-O2 -g")
-  SET (CMAKE_CXX_CREATE_PREPROCESSED_SOURCE "<CMAKE_CXX_COMPILER> <FLAGS> -o <PREPROCESSED_SOURCE> -E <SOURCE>")
-  SET (CMAKE_CXX_CREATE_ASSEMBLY_SOURCE "<CMAKE_CXX_COMPILER> <FLAGS> -o <ASSEMBLY_SOURCE> -S <SOURCE>")
+  SET (CMAKE_CXX_CREATE_PREPROCESSED_SOURCE "<CMAKE_CXX_COMPILER> <FLAGS> -E <SOURCE> > <PREPROCESSED_SOURCE>")
+  SET (CMAKE_CXX_CREATE_ASSEMBLY_SOURCE "<CMAKE_CXX_COMPILER> <FLAGS> -S <SOURCE> -o <ASSEMBLY_SOURCE>")
 ENDIF(CMAKE_COMPILER_IS_GNUCXX)
 

Source/cmLocalUnixMakefileGenerator3.cxx

@@ -306,13 +306,13 @@ void cmLocalUnixMakefileGenerator3::WriteLocalMakefile()
         {
         this->WriteObjectConvenienceRule(
           ruleFileStream, "target to preprocess a source file",
-          (base + ".E").c_str(), lo->second);
+          (base + ".i").c_str(), lo->second);
         }
       if(do_assembly_rules)
         {
         this->WriteObjectConvenienceRule(
           ruleFileStream, "target to generate assembly for a file",
-          (base + ".S").c_str(), lo->second);
+          (base + ".s").c_str(), lo->second);
         }
       }
     }

Source/cmMakefileTargetGenerator.cxx

@@ -509,12 +509,12 @@ cmMakefileTargetGenerator
     if(do_preprocess_rules)
       {
       commands.clear();
-      std::string relativeObjE = relativeObjBase + ".E";
+      std::string relativeObjI = relativeObjBase + ".i";
 
       std::string preprocessEcho = "Preprocessing ";
       preprocessEcho += lang;
       preprocessEcho += " source to ";
-      preprocessEcho += relativeObjE;
+      preprocessEcho += relativeObjI;
       this->LocalGenerator->AppendEcho(
         commands, preprocessEcho.c_str(),
         cmLocalUnixMakefileGenerator3::EchoBuild
@@ -528,7 +528,7 @@ cmMakefileTargetGenerator
         {
         cmSystemTools::ExpandListArgument(preprocessRule, commands);
 
-        vars.PreprocessedSource = relativeObjE.c_str();
+        vars.PreprocessedSource = relativeObjI.c_str();
 
         // Expand placeholders in the commands.
         for(std::vector<std::string>::iterator i = commands.begin();
@@ -545,14 +545,14 @@ cmMakefileTargetGenerator
         }
 
       this->LocalGenerator->WriteMakeRule(*this->BuildFileStream, 0,
-                                          relativeObjE.c_str(),
+                                          relativeObjI.c_str(),
                                           force_depends, commands, false);
       }
 
     if(do_assembly_rules)
       {
       commands.clear();
-      std::string relativeObjS = relativeObjBase + ".S";
+      std::string relativeObjS = relativeObjBase + ".s";
 
       std::string assemblyEcho = "Compiling ";
       assemblyEcho += lang;