diff --git a/v1/python.jam b/v1/python.jam
index 9577d7e4b..677ca7053 100644
--- a/v1/python.jam
+++ b/v1/python.jam
@@ -59,7 +59,7 @@ if $(PYTHON_WINDOWS)
     CYGWIN_PYTHON_LIB_PATH ?= $(CYGWIN_PYTHON_ROOT)/lib/python$(CYGWIN_PYTHON_VERSION)/config ;
       
     CYGWIN_PYTHON_DEBUG_VERSION ?= $(CYGWIN_PYTHON_VERSION) ;
-    CYGWIN_PYTHON_DEBUG_ROOT ?= /usr/local/pydebug ;
+    CYGWIN_PYTHON_DEBUG_ROOT ?= $(PYTHON_ROOT) ;
     CYGWIN_PYTHON_DEBUG_DLL_PATH ?= $(CYGWIN_PYTHON_DEBUG_ROOT)/bin ;
     CYGWIN_PYTHON_DEBUG_LIB_PATH ?= $(CYGWIN_PYTHON_DEBUG_ROOT)/lib/python$(CYGWIN_PYTHON_DEBUG_VERSION)/config ;
 }
@@ -137,7 +137,7 @@ else if $(UNIX) && $(OS) = MACOSX
 }
 else if $(UNIX)
 {
-    PYTHON_ROOT ?= /usr/local ;
+    PYTHON_ROOT ?= /usr ;
     PYTHON_ROOT = $(PYTHON_ROOT:J=" ") ;
     PYTHON_INCLUDES ?= $(PYTHON_ROOT)/include/python$(PYTHON_VERSION) ;
     PYTHON_LIB_PATH ?= $(PYTHON_ROOT)/lib/python$(PYTHON_VERSION)/config ;