Use -I instead of -isystem for system header directories when building

with gcc 4. Fixed resulting build errors (gcc is more lenient for
headers in -isystem directories).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20386 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/os/support/Errors.h

@@ -72,7 +72,7 @@ enum {
 	B_MISSING_LIBRARY,
 	B_MISSING_SYMBOL,
 
-	B_DEBUGGER_ALREADY_INSTALLED = B_OS_ERROR_BASE + 0x400,
+	B_DEBUGGER_ALREADY_INSTALLED = B_OS_ERROR_BASE + 0x400
 };
 
 /* Application Kit Errors */
@@ -276,7 +276,7 @@ enum {
 	B_DEV_FIFO_UNDERRUN,
 	B_DEV_PENDING,
 	B_DEV_MULTIPLE_ERRORS,
-	B_DEV_TOO_LATE,
+	B_DEV_TOO_LATE
 };
 
 #endif	/* _ERRORS_H */