Improve check for Cython version.
[#249 state:resolved]
diff --git a/m4/cython.m4 b/m4/cython.m4
index ba6b3ca..e56bfba 100644
--- a/m4/cython.m4
+++ b/m4/cython.m4
@@ -2,13 +2,14 @@
dnl be set before this function is called.
dnl CYTHON_CHECK_VERSION([MIN-VERSION], [ACTION-IF-TRUE], [ACTION-IF-FALSE])
AC_DEFUN([CYTHON_CHECK_VERSION],
- [prog="import sys
+ [prog="import re, sys
from Cython.Compiler.Version import version
def get_int(arg):
- try:
- return int(arg)
- except ValueError:
+ matched = re.match(r'\d+', arg)
+ if matched is None:
return 0
+ else:
+ return int(matched.group(0))
# split strings by '.' and convert to numeric. Append some zeros
# because we need at least 4 digits for the hex conversion.
ver = map(get_int, version.rstrip('abcdefghijklmnopqrstuvwxyz').split('.')) + [[0, 0, 0]]
