Attempt to use a UTF-8 locale if one is available to avoid errors when setup.py calls open() with no encoding.

3 files changed, 45 insertions, 3 deletions

diff --git a/eclass/ChangeLog b/eclass/ChangeLog
index a4d57c00c1f0..c53669650dca 100644
--- a/eclass/ChangeLog
+++ b/eclass/ChangeLog
@@ -1,6 +1,11 @@
 # ChangeLog for eclass directory
 # Copyright 1999-2014 Gentoo Foundation; Distributed under the GPL v2
-# $Header: /var/cvsroot/gentoo-x86/eclass/ChangeLog,v 1.1305 2014/06/29 08:32:46 mgorny Exp $
+# $Header: /var/cvsroot/gentoo-x86/eclass/ChangeLog,v 1.1306 2014/06/29 14:24:22 floppym Exp $
+
+  29 Jun 2014; Mike Gilbert <floppym@gentoo.org> distutils-r1.eclass,
+  python-utils-r1.eclass:
+  Attempt to use a UTF-8 locale if one is available to avoid errors when
+  setup.py calls open() with no encoding.
 
   29 Jun 2014; Michał Górny <mgorny@gentoo.org> multilib-build.eclass:
   Fix handling empty MULTILIB_COMPAT.
diff --git a/eclass/distutils-r1.eclass b/eclass/distutils-r1.eclass
index e5a5cd4e9460..a564e7c59bb7 100644
--- a/eclass/distutils-r1.eclass
+++ b/eclass/distutils-r1.eclass
@@ -1,6 +1,6 @@
 # Copyright 1999-2014 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
-# $Header: /var/cvsroot/gentoo-x86/eclass/distutils-r1.eclass,v 1.99 2014/06/22 07:01:37 mgorny Exp $
+# $Header: /var/cvsroot/gentoo-x86/eclass/distutils-r1.eclass,v 1.100 2014/06/29 14:24:22 floppym Exp $
 
 # @ECLASS: distutils-r1
 # @MAINTAINER:
@@ -690,6 +690,8 @@ distutils-r1_src_prepare() {
 }
 
 distutils-r1_src_configure() {
+	python_export_utf8_locale
+
 	if declare -f python_configure >/dev/null; then
 		_distutils-r1_run_foreach_impl python_configure
 	fi
diff --git a/eclass/python-utils-r1.eclass b/eclass/python-utils-r1.eclass
index cff0429c2653..5376454ee15b 100644
--- a/eclass/python-utils-r1.eclass
+++ b/eclass/python-utils-r1.eclass
@@ -1,6 +1,6 @@
 # Copyright 1999-2014 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
-# $Header: /var/cvsroot/gentoo-x86/eclass/python-utils-r1.eclass,v 1.58 2014/06/19 15:10:55 mgorny Exp $
+# $Header: /var/cvsroot/gentoo-x86/eclass/python-utils-r1.eclass,v 1.59 2014/06/29 14:24:22 floppym Exp $
 
 # @ECLASS: python-utils-r1
 # @MAINTAINER:
@@ -1110,5 +1110,40 @@ _python_get_wrapper_path() {
 	fi
 }
 
+# @FUNCTION: python_export_utf8_locale
+# @RETURN: 0 on success, 1 on failure.
+# @DESCRIPTION:
+# Attempts to export a usable UTF-8 locale in the LC_CTYPE variable. Does
+# nothing if LC_ALL is defined, or if the current locale uses a UTF-8 charmap.
+# This may be used to work around the quirky open() behavior of python3.
+python_export_utf8_locale() {
+	debug-print-function ${FUNCNAME} "${@}"
+
+	if [[ $(locale charmap) != UTF-8 ]]; then
+		if [[ -n ${LC_ALL} ]]; then
+			ewarn "LC_ALL is set to a locale with a charmap other than UTF-8."
+			ewarn "This may trigger build failures in some python packages."
+			return 1
+		fi
+
+		# Try English first, then everything else.
+		local lang locales="en_US.UTF-8 $(locale -a)"
+
+		for lang in ${locales}; do
+			if [[ $(LC_CTYPE=${lang} locale charmap 2>/dev/null) == UTF-8 ]]; then
+				export LC_CTYPE=${lang}
+				return 0
+			fi  
+		done
+
+		ewarn "Could not find a UTF-8 locale. This may trigger build failures in"
+		ewarn "some python packages. Please ensure that a UTF-8 locale is listed in"
+		ewarn "/etc/locale.gen and run locale-gen."
+		return 1
+	fi  
+
+	return 0
+}
+
 _PYTHON_UTILS_R1=1
 fi