[waf] do no try to generate doxygen documentation on windows

diff --git a/wscript b/wscript
index 70fddc5..13d9cbe 100644 (file)
--- a/wscript
+++ b/wscript
@@ -619,7 +619,8 @@ def txt2man(bld):
 
 def doxygen(bld):
     # build documentation from source files using doxygen
-    if bld.env['DOXYGEN']:
+    from waflib import Utils
+    if bld.env['DOXYGEN'] and not Utils.is_win32:
         bld.env.VERSION = VERSION
         rule = '( cat ${SRC[0]} && echo PROJECT_NUMBER=${VERSION}'
         rule += ' && echo OUTPUT_DIRECTORY=%s && echo HTML_OUTPUT=%s )'