Makefile: only expand waf if needed, use 'python waf' by default

diff --git a/Makefile b/Makefile
index 125ec28..c4b2b91 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,4 @@
+WAFCMD=python waf
 all: build
 
 checkwaf:
@@ -5,8 +6,11 @@ checkwaf:
 
 getwaf:
        curl https://waf.io/waf-1.8.14 > waf
+       @chmod +x waf
+
+expandwaf:
        @[ -d wafilb ] || rm -fr waflib
-       @chmod +x waf && ./waf --help > /dev/null
+       @$(WAFCMD) --help > /dev/null
        @mv .waf*/waflib . && rm -fr .waf*
        @sed '/^#==>$$/,$$d' waf > waf2 && mv waf2 waf
        @chmod +x waf
@@ -22,10 +26,10 @@ clean_python:
        cd python && ./setup.py clean
 
 clean:
-       ./waf clean
+       $(WAFCMD) clean
 
 distcheck: build
-       ./waf distcheck
+       $(WAFCMD) distcheck
 
 help:
-       ./waf --help
+       $(WAFCMD) --help