Heuristics for determining python2 for OKL4

base-okl4/Makefile

@@ -12,6 +12,18 @@ OKL4_VERSION  = okl4_2.1.1-patch.9
 OKL4_ARCHIVE  = $(OKL4_VERSION).tar.gz
 OKL4_URI      = http://wiki.ok-labs.com/downloads/release-2.1.1-patch.9/$(OKL4_ARCHIVE)
 PATCHES       = $(shell find patches -name *.patch)
+SHELL         = bash
+
+#
+# Determine python version to use for OKL4's elfweaver
+#
+PYTHON2 := $(notdir $(lastword $(shell which python2 python2.{4,5,6,7,8})))
+ifeq ($(PYTHON2),)
+prepare: python_not_installed
+python_not_installed:
+	$(ECHO) "Error: OKL4 needs Python 2 to be installed"
+	@false;
+endif
 
 #
 # Print help information by default
@@ -39,6 +51,7 @@ $(CONTRIB_DIR): $(DOWNLOAD_DIR)/$(OKL4_ARCHIVE)
 	$(VERBOSE)mv $(OKL4_VERSION) $@
 	$(ECHO) "applying patches to '$(CONTRIB_DIR)/'"
 	$(VERBOSE)for i in $(PATCHES); do patch -d $@ -p1 < $$i; done
+	$(VERBOSE)sed -i "s/env python/env $(PYTHON2)/" $(CONTRIB_DIR)/tools/pyelf/elfweaver
 
 prepare: $(CONTRIB_DIR)
 

base-okl4/patches/elfweaver-python2.patch

@@ -1,8 +0,0 @@
---- a/tools/pyelf/elfweaver	2012-02-12 15:35:22.347943742 +0100
-+++ b/tools/pyelf/elfweaver	2012-02-12 15:35:26.444610504 +0100
-@@ -1,4 +1,4 @@
--#!/usr/bin/env python
-+#!/usr/bin/env python2
- #
- # Copyright (c) 2007 Open Kernel Labs, Inc. (Copyright Holder).
- # All rights reserved.