Fix "make tags": set locale to C to call sort

vim expects that the tags file is sorted using english collation, so it fails
if the locale is french for example. Use LC_ALL=C to force english sorting
order. Issue #27726.

diff --git a/Makefile.pre.in b/Makefile.pre.in
index 2101e70f351aeb505a67f70884a280138eca1510..105481aff46fc699364f445336fb1775ee1553c4 100644 (file)
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -1566,7 +1566,7 @@ tags::
        ctags -w Include/*.h; \
        for i in $(SRCDIRS); do ctags -w -a $$i/*.[ch]; \
        done; \
-       sort -o tags tags
+       LC_ALL=C sort -o tags tags
 
 # Create a tags file for GNU Emacs
 TAGS::