Detect compiler -pipe support

Modified: branches/xmlbuildsystem/reactos/tools/rbuild/backend/mingw/mingw.cpp
Modified: branches/xmlbuildsystem/reactos/tools/rbuild/backend/mingw/mingw.h
Modified: branches/xmlbuildsystem/reactos/tools/rbuild/backend/mingw/modulehandler.cpp

--- branches/xmlbuildsystem/reactos/tools/rbuild/backend/mingw/mingw.cpp	2005-04-03 10:16:56 UTC (rev 14467)
+++ branches/xmlbuildsystem/reactos/tools/rbuild/backend/mingw/mingw.cpp	2005-04-03 10:46:08 UTC (rev 14468)
@@ -206,7 +206,8 @@

 {
 	size_t i;
 

-	DetectPCHSupport();

+	DetectPipeSupport ();
+	DetectPCHSupport ();

 
 	CreateMakefile ();
 	GenerateHeader ();
@@ -515,31 +516,66 @@

 }
 
 void

-MingwBackend::DetectPCHSupport()

+MingwBackend::DetectPipeSupport ()

 {

-#ifdef WIN32
-	string sNUL = "NUL";
-#else
-	string sNUL = "/dev/null";
-#endif

+	printf ( "Detecting compiler -pipe support..." );
+
+	string pipe_detection = "tools" SSEP "rbuild" SSEP "backend" SSEP "mingw" SSEP "pipe_detection.c";
+	string pipe_detectionObjectFilename = ReplaceExtension ( pipe_detection,
+	                                                         ".o" );
+	string command = ssprintf (
+		"gcc -pipe -c %s -o %s 2>%s",
+		pipe_detection.c_str (),
+		pipe_detectionObjectFilename.c_str (),
+		NUL );
+	int exitcode = system ( command.c_str () );
+	FILE* f = fopen ( pipe_detectionObjectFilename.c_str (), "rb" );
+	if ( f )
+	{
+		usePipe = (exitcode == 0);
+		fclose ( f );
+		unlink ( pipe_detectionObjectFilename.c_str () );
+	}
+	else
+		usePipe = false;
+
+	if ( usePipe )
+		printf ( "detected\n" );
+	else
+		printf ( "not detected\n" );
+
+	// TODO FIXME - eventually check for ROS_USE_PCH env var and
+	// allow that to override use_pch if true
+}
+
+void
+MingwBackend::DetectPCHSupport ()
+{
+	printf ( "Detecting compiler pre-compiled header support..." );
+

 	string path = "tools" SSEP "rbuild" SSEP "backend" SSEP "mingw" SSEP "pch_detection.h";

-	string cmd = ssprintf(

+	string cmd = ssprintf (

 		"gcc -c %s 2>%s",
 		path.c_str (),

-		sNUL.c_str () );
-	system ( cmd.c_str() );

+		NUL );
+	system ( cmd.c_str () );

 	path += ".gch";
 

-	FILE* f = fopen ( path.c_str(), "rb" );

+	FILE* f = fopen ( path.c_str (), "rb" );

 	if ( f )
 	{
 		use_pch = true;

-		fclose(f);
-		unlink ( path.c_str() );

+		fclose ( f );
+		unlink ( path.c_str () );

 	}
 	else
 		use_pch = false;
 

+	if ( use_pch )
+		printf ( "detected\n" );
+	else
+		printf ( "not detected\n" );
+

 	// TODO FIXME - eventually check for ROS_USE_PCH env var and
 	// allow that to override use_pch if true
 }

--- branches/xmlbuildsystem/reactos/tools/rbuild/backend/mingw/mingw.h	2005-04-03 10:16:56 UTC (rev 14467)
+++ branches/xmlbuildsystem/reactos/tools/rbuild/backend/mingw/mingw.h	2005-04-03 10:46:08 UTC (rev 14468)
@@ -3,6 +3,12 @@

 
 #include "../backend.h"
 

+#ifdef WIN32
+	#define NUL "NUL"
+#else
+	#define NUL "/dev/null"
+#endif
+

 class Directory;
 class MingwModuleHandler;
 
@@ -13,6 +19,7 @@

 	virtual ~MingwBackend ();
 	virtual void Process ();
 	std::string AddDirectoryTarget ( const std::string& directory, bool out );

+	bool usePipe;

 private:
 	void CreateMakefile ();
 	void CloseMakefile () const;
@@ -31,7 +38,8 @@

 	void GenerateXmlBuildFilesMacro() const;
 	void CheckAutomaticDependencies ();
 	bool IncludeDirectoryTarget ( const std::string& directory ) const;

-	void DetectPCHSupport();

+	void DetectPipeSupport ();
+	void DetectPCHSupport ();

 	FILE* fMakefile;
 	bool use_pch;
 	Directory *int_directories, *out_directories;

--- branches/xmlbuildsystem/reactos/tools/rbuild/backend/mingw/modulehandler.cpp	2005-04-03 10:16:56 UTC (rev 14467)
+++ branches/xmlbuildsystem/reactos/tools/rbuild/backend/mingw/modulehandler.cpp	2005-04-03 10:46:08 UTC (rev 14468)
@@ -1278,10 +1278,15 @@

 		}
 	}
 

+	string globalCflags = "-g";
+	if ( backend->usePipe )
+		globalCflags += " -pipe";
+	

 	fprintf (
 		fMakefile,

-		"%s += $(PROJECT_CFLAGS) -g\n",
-		cflagsMacro.c_str () );

+		"%s += $(PROJECT_CFLAGS) %s\n",
+		cflagsMacro.c_str (),
+		globalCflags.c_str () );

 
 	fprintf (
 		fMakefile,