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-rw-r--r--Makefile14
1 files changed, 10 insertions, 4 deletions
diff --git a/Makefile b/Makefile
index 1c3745a6..611bb7c3 100644
--- a/Makefile
+++ b/Makefile
@@ -7,10 +7,16 @@ NAME_RIFLE = rifle
 VERSION_RIFLE = $(VERSION)
 SNAPSHOT_NAME ?= $(NAME)-$(VERSION)-$(shell git rev-parse HEAD | cut -b 1-8).tar.gz
 # Find suitable python version (need python >= 2.6 or 3.1):
-PYTHON ?= $(shell python -c 'import sys; sys.exit(sys.version < "2.6")' && \
-	which python3 || which python3.6 || which python3.5 || which python3.4 || \
-	which python3.3 || which python3.2 || which python3.1 || \
-	which python || which python2.7 || which python2.6)
+PYTHON ?= $(shell \
+	     (python -c 'import sys; sys.exit(sys.version < "2.6")' && \
+	      which python) \
+	     || (which python3) \
+	     || (python2 -c 'import sys; sys.exit(sys.version < "2.6")' && \
+	         which python2) \
+	   )
+ifeq ($(strip $(PYTHON)),)
+  $(error No suitable python found.)
+endif
 SETUPOPTS ?= '--record=install_log.txt'
 DOCDIR ?= doc/pydoc
 DESTDIR ?= /