* configure: Pass gcc's host machine string to the jam build system.

* BuildSetup: Set jam variable HOST_PLATFORM_IS_64_BIT and add host define
  HAIKU_HOST_PLATFORM_64_BIT if the host platform is 64 bit. Removed the
  check from BeOSBuildCompatibility.h.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34211 a95241bf-73f2-0310-859d-f6bbb57e9c96

build/jam/BuildSetup

@@ -478,9 +478,15 @@ HAIKU_BUILD_DESCRIPTION ?= "Unknown Build" ;
 
 # host platform settings
 
-# enable GCC -m32 option, if requested
+# analyze the host gcc machine spec to find out about 64-bitness
+HOST_PLATFORM_IS_64_BIT = ;
 if $(HAIKU_HOST_USE_32BIT) = 1 {
+	# enable GCC -m32 option
 	HOST_GCC_BASE_FLAGS = -m32 ;
+} else {
+	switch $(HOST_GCC_MACHINE) {
+		case x86_64-*	: HOST_PLATFORM_IS_64_BIT = 1 ;
+	}
 }
 
 
@@ -531,6 +537,7 @@ HOST_CPU	?= $(OSPLAT:L) ;
 HOST_ARCH				?= $(HOST_CPU) ;
 HOST_ARCH_MACRO_DEFINE	= ARCH_$(HOST_CPU) ;
 
+
 # directories
 HOST_OBJECT_BASE_DIR = [ FDirName $(HAIKU_OBJECT_DIR) $(HOST_PLATFORM) ] ;
 HOST_COMMON_ARCH_OBJECT_DIR = [ FDirName $(HOST_OBJECT_BASE_DIR) common ] ;
@@ -926,6 +933,10 @@ switch $(HOST_PLATFORM) {
 	case sunos		: HOST_DEFINES	+= HAIKU_HOST_PLATFORM_SUNOS ;
 }
 
+# define host platform 64 bit macro
+if $(HOST_PLATFORM_IS_64_BIT) {
+	HOST_DEFINES += HAIKU_HOST_PLATFORM_64_BIT ;
+}
 
 #pragma mark -
 

configure

@@ -266,6 +266,7 @@ haikuStaticLibSupCxx=
 haikuSharedLibSupCxx=
 haikuCxxHeadersDir=
 hostGCCVersion=`gcc -dumpversion`
+hostGCCMachine=`gcc -dumpmachine`
 bochsDebug=0
 includeGPLAddOns=0
 includePatentedCode=0
@@ -513,6 +514,7 @@ HAIKU_ARFLAGS				?= ${HAIKU_ARFLAGS} ;
 HAIKU_UNARFLAGS				?= ${HAIKU_UNARFLAGS} ;
 
 HOST_GCC_RAW_VERSION		?= ${hostGCCVersion} ;
+HOST_GCC_MACHINE			?= ${hostGCCMachine} ;
 
 EOF
 

headers/build/BeOSBuildCompatibility.h

@@ -36,10 +36,6 @@ typedef unsigned long haiku_build_addr_t;
 #include <sys/types.h>
 #include <sys/uio.h>
 
-#ifdef __x86_64__
-#define HAIKU_HOST_PLATFORM_64_BIT
-#endif
-
 #ifdef __cplusplus
 extern "C" {
 #endif