Export ktrace_printf for the test environment.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24093 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/build/libhaikucompat/misc.cpp

@@ -15,6 +15,12 @@ debug_printf(const char *format, ...)
 }
 
 
+extern "C" void
+ktrace_printf(const char *format, ...)
+{
+}
+
+
 dev_t
 fs_mount_volume(const char *where, const char *device, const char *filesystem,
 	uint32 flags, const char *parameters)
@@ -28,3 +34,4 @@ fs_unmount_volume(const char *path, uint32 flags)
 {
 	return B_ERROR;
 }
+