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-rw-r--r--m4/ac_pkg_cython.m456
1 files changed, 56 insertions, 0 deletions
diff --git a/m4/ac_pkg_cython.m4 b/m4/ac_pkg_cython.m4
new file mode 100644
index 0000000..aeae6a0
--- /dev/null
+++ b/m4/ac_pkg_cython.m4
@@ -0,0 +1,56 @@
+
+AC_DEFUN([AC_PROG_CYTHON],[
+ AC_PATH_PROG([CYTHON],[cython])
+ if test -z "$CYTHON" ; then
+ AC_MSG_WARN([cannot find 'cython' program. You should look at http://www.cython.org] or install your distribution specific cython package.)
+ CYTHON=false
+ elif test -n "$1" ; then
+ AC_MSG_CHECKING([for Cython version])
+ [cython_version=`$CYTHON --version 2>&1 | grep 'Cython version' | sed 's/.*\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\).*/\1/g'`]
+ AC_MSG_RESULT([$cython_version])
+ if test -n "$cython_version" ; then
+ # Calculate the required version number components
+ [required=$1]
+ [required_major=`echo $required | sed 's/[^0-9].*//'`]
+ if test -z "$required_major" ; then
+ [required_major=0]
+ fi
+ [required=`echo $required | sed 's/[0-9]*[^0-9]//'`]
+ [required_minor=`echo $required | sed 's/[^0-9].*//'`]
+ if test -z "$required_minor" ; then
+ [required_minor=0]
+ fi
+ [required=`echo $required | sed 's/[0-9]*[^0-9]//'`]
+ [required_patch=`echo $required | sed 's/[^0-9].*//'`]
+ if test -z "$required_patch" ; then
+ [required_patch=0]
+ fi
+ # Calculate the available version number components
+ [available=$cython_version]
+ [available_major=`echo $available | sed 's/[^0-9].*//'`]
+ if test -z "$available_major" ; then
+ [available_major=0]
+ fi
+ [available=`echo $available | sed 's/[0-9]*[^0-9]//'`]
+ [available_minor=`echo $available | sed 's/[^0-9].*//'`]
+ if test -z "$available_minor" ; then
+ [available_minor=0]
+ fi
+ [available=`echo $available | sed 's/[0-9]*[^0-9]//'`]
+ [available_patch=`echo $available | sed 's/[^0-9].*//'`]
+ if test -z "$available_patch" ; then
+ [available_patch=0]
+ fi
+ if test $available_major -ne $required_major \
+ -o $available_minor -ne $required_minor \
+ -o $available_patch -lt $required_patch ; then
+ AC_MSG_WARN([Cython version >= $1 is required. You have $cython_version. You should look at http://www.cython.org])
+ CYTHON=false
+ fi
+ else
+ AC_MSG_WARN([cannot determine Cython version])
+ CYTHON=false
+ fi
+ fi
+ AC_SUBST([CYTHON_LIB])
+])