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From 242c594bce69295299d67d5a2c7d4a286fb85fcd Mon Sep 17 00:00:00 2001
From: Alan Ott <alan@signal11.us>
Date: Sun, 17 Mar 2013 18:13:45 -0400
Subject: [PATCH 4/7] m4: add py_check_major_version.m4
Macro to check the Python major version.
This is from stackoverflow user bigleux on page:
http://stackoverflow.com/questions/4619664/autofoo-test-for-maximum-version-of-python
Signed-off-by: Alan Ott <alan@signal11.us>
---
m4/py_check_major_version.m4 | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
create mode 100644 m4/py_check_major_version.m4
diff --git a/m4/py_check_major_version.m4 b/m4/py_check_major_version.m4
new file mode 100644
index 0000000..6d45be8
--- /dev/null
+++ b/m4/py_check_major_version.m4
@@ -0,0 +1,19 @@
+`# From http://stackoverflow.com/questions/4619664/autofoo-test-for-maximum-version-of-python
+`# stackoverflow user biegleux
+
+`# py_CHECK_MAJOR_VERSION(VARIABLE, VERSION, [ACTION-IF-TRUE], [ACTION-IF-FALSE])`
+`# ---------------------------------------------------------------------------`
+`# Run ACTION-IF-TRUE if the VAR has a major version >= VERSION.`
+`# Run ACTION-IF-FALSE otherwise.`
+AC_DEFUN([py_CHECK_MAJOR_VERSION],
+[AC_MSG_CHECKING([whether $1 $$1 major version == $2])
+case $$1 in
+$2*)
+ AC_MSG_RESULT([yes])
+ ifelse([$3], [$3], [:])
+ ;;
+*)
+ AC_MSG_RESULT([no])
+ ifelse([$4], , [AC_MSG_ERROR([$$1 differs from $2])], [$4])
+ ;;
+esac])
--
1.8.2.3
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