Parhaps it is a missed one, that should be fixed :)
With this patch, even if environment variable PYTHON pointed to Python 2,
the configure script searches Python 3 at first. I'm irresolute that
it is what it should be or not, and we should add --with-python argment
to specify Python interpreter explicitly for this purpose or not.
[[[
configure: Search Python 3 before searching Python 2 for tests suite.
* build/find_python.sh: Add option to specify version to search for.
* configure.ac: Search Python 3 before searching Python 2 for tests suite.
]]]
Cheers,
--
Yasuhito FUTATSUKI <[email protected]>
Index: build/find_python.sh
===================================================================
--- build/find_python.sh (revision 1885802)
+++ build/find_python.sh (working copy)
@@ -21,11 +21,28 @@
#
# Required version of Python
-VERSION=${1:-0x2070000}
+case $1 in
+ -2)
+ CANDIDATE="$PYTHON $PYTHON2 python python2"
+ MIN_VER=${2:-0x2070000}
+ MAX_VER="0x3000000"
+ break
+ ;;
+ -3)
+ CANDIDATE="$PYTHON $PYTHON3 python python3"
+ MIN_VER=${2:-0x3000000}
+ MAX_VER="0xffffffff"
+ ;;
+ *)
+ CANDIDATE="$PYTHON $PYTHON3 python python3 $PYTHON2 python2"
+ MIN_VER=${1:-0x2070000}
+ MAX_VER="0xffffffff"
+esac
-for pypath in "$PYTHON" "$PYTHON2" "$PYTHON3" python python2 python3; do
+for pypath in $CANDIDATE; do
if [ "x$pypath" != "x" ]; then
- DETECT_PYTHON="import sys;sys.exit((sys.hexversion < $VERSION) and 1 or 0)"
+ DETECT_PYTHON="import sys;\
+ sys.exit(0 if $MIN_VER <= sys.hexversion < $MAX_VER else 1)"
if "$pypath" -c "$DETECT_PYTHON" >/dev/null 2>/dev/null; then
echo $pypath
exit 0
Index: configure.ac
===================================================================
--- configure.ac (revision 1885802)
+++ configure.ac (working copy)
@@ -1303,15 +1303,22 @@
# Python: Used for testsuite
AC_ARG_VAR([PYTHON], [Python interpreter command])
-PYTHON="`$abs_srcdir/build/find_python.sh`"
-if test -z "$PYTHON"; then
- AC_MSG_WARN([Python 2.7 or later is required to run the testsuite.])
- AC_MSG_WARN([])
- AC_MSG_WARN([If you have a suitable Python installed, but not on the])
- AC_MSG_WARN([PATH, set the environment variable PYTHON to the full path])
- AC_MSG_WARN([to the Python executable, and re-run configure])
- PYTHON=none
+detected_python="`$abs_srcdir/build/find_python.sh -3`"
+if test -z "$detected_python"; then
+ detected_python="`$abs_srcdir/build/find_python.sh -2`"
+ if test -z "$detected_python"; then
+ AC_MSG_WARN([Python 2.7 or later is required to run the testsuite.])
+ AC_MSG_WARN([])
+ AC_MSG_WARN([If you have a suitable Python installed, but not on the])
+ AC_MSG_WARN([PATH, set the environment variable PYTHON to the full path])
+ AC_MSG_WARN([to the Python executable, and re-run configure])
+ detected_python=none
+ else
+ AC_MSG_WARN([We recommend you to use Python 3 or later])
+ AC_MSG_WARN([but only Python 2.7 is detected.])
+ fi
fi
+PYTHON="$detected_python"
AC_SUBST(PYTHON)
# The minimum version for the JVM runtime for our Java bytecode.
