0606-autoconf-fix-handling-absolute-PYTHON-path.patch

From a2c4f630467fdcfa76d3a1b8ac3ef32727eb15c1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Marczykowski-G=C3=B3recki?=
 <marmarek@invisiblethingslab.com>
Date: Wed, 2 Jun 2021 05:24:09 +0200
Subject: [PATCH] autoconf: fix handling absolute $PYTHON path
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Don't strip full path from $PYTHON variable. This is especially
relevant, if it points outside of $PATH. This is the case
for RPM build on CentOS 8 (%{python3} macro points at
/usr/libexec/platform-python).

For this reason, adjust also python-config handling - AC_PATH_PROG
doesn't work on already absolute path, so make it conditional.

Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
---
 m4/python_devel.m4 | 6 +++++-
 tools/configure.ac | 1 -
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/m4/python_devel.m4 b/m4/python_devel.m4
index bb60857b030a..c3b38052ae69 100644
--- a/m4/python_devel.m4
+++ b/m4/python_devel.m4
@@ -2,7 +2,11 @@ AC_DEFUN([AX_CHECK_PYTHON_DEVEL], [
 ac_previous_cppflags=$CPPFLAGS
 ac_previous_ldflags=$LDFLAGS
 ac_previous_libs=$LIBS
-AC_PATH_PROG([pyconfig], [$PYTHON-config], [no])
+AS_IF([echo "$PYTHON" | grep -q "^/"], [
+    pyconfig="$PYTHON-config"
+], [
+    AC_PATH_PROG([pyconfig], [$PYTHON-config], [no])
+])
 AS_IF([test x"$pyconfig" = x"no"], [
     dnl For those that don't have python-config
     CPPFLAGS="$CFLAGS `$PYTHON -c 'import sysconfig; \
diff --git a/tools/configure.ac b/tools/configure.ac
index be58f06be450..d4f03d4ba15b 100644
--- a/tools/configure.ac
+++ b/tools/configure.ac
@@ -382,7 +382,6 @@ AS_IF([test -z "$PYTHON"], [AC_CHECK_PROGS([PYTHON], [python3 python python2], e
 AS_IF([test "$PYTHON" = "err"], [AC_MSG_ERROR([No python interpreter found])])
 AS_IF([echo "$PYTHON" | grep -q "^/"], [], [AC_PATH_PROG([PYTHON], [$PYTHON])])
 PYTHONPATH=$PYTHON
-PYTHON=`basename $PYTHONPATH`
 
 AX_PATH_PROG_OR_FAIL([PYTHONPATH], [$PYTHON])
 AX_CHECK_PYTHON_VERSION([2], [7])
-- 
2.44.0