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Honor a special 'GUIX_LOCPATH' environment variable.
This is most useful when using Guix on top of another distro, which uses an
different libc version with incompatible locale data. In this case, setting
'GUIX_LOCPATH' rather than 'LOCPATH' allows users to tell Guix's libc where to
look for its locale data without breaking programs that use the other libc.
See <https://lists.gnu.org/archive/html/guix-devel/2015-09/msg00717.html> for
some background information.
--- a/locale/newlocale.c
+++ b/locale/newlocale.c
@@ -103,6 +103,8 @@ __newlocale (int category_mask, const char *locale, __locale_t base)
locale_path_len = 0;
locpath_var = getenv ("LOCPATH");
+ if (locpath_var == NULL || locpath_var[0] == '\0')
+ locpath_var = getenv ("GUIX_LOCPATH");
if (locpath_var != NULL && locpath_var[0] != '\0')
{
if (__argz_create_sep (locpath_var, ':',
diff --git a/locale/setlocale.c b/locale/setlocale.c
index ead030d..0e66c7b 100644
--- a/locale/setlocale.c
+++ b/locale/setlocale.c
@@ -252,6 +252,8 @@ setlocale (int category, const char *locale)
locale_path_len = 0;
locpath_var = getenv ("LOCPATH");
+ if (locpath_var == NULL || locpath_var[0] == '\0')
+ locpath_var = getenv ("GUIX_LOCPATH");
if (locpath_var != NULL && locpath_var[0] != '\0')
{
if (__argz_create_sep (locpath_var, ':',
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