[PATCH] Makefile: replace lowercase letters regex with POSIX character class

[Zorro Lang <zlang@redhat.com>]

Latest glibc changed some rules of sorting and regexes, the usage
likes "[a-z]" maybe not only stand for lowcase letters a..z in
different locale. Similar issues include [A-Z], [0-9] and so on.

For example, in en_US.UTF-8 locale, [a-z] means aAbBcCdD...zZ,
it stands for both of uppercase and lowercase. Currently this
issue cause `make install` fails on system with new glibc.

So use POSIX character class to instead of [...] group, something
likes [:lower:], [:upper:], [:alpha:], [:alnum:], etc... are common.

Signed-off-by: Zorro Lang <zlang@redhat.com>
---

Hi,

I found that there're two lines in common/config:
export LANG=C
export LC_ALL=C

That can make sure that all cases can use [a-z], [A-Z], [0-9] ...
as our expected. So we only need to fix this Makefile issue.
Due to I only find this one issue, so I'd like to use [:lower:].

If you prefer set locale in Makefile, please tell me.

Thanks,
Zorro

 tests/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/Makefile b/tests/Makefile
index 11164e9e..8ce8f209 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -5,7 +5,7 @@
 TOPDIR = ..
 include $(TOPDIR)/include/builddefs
 
-TESTS_SUBDIRS = $(sort $(dir $(wildcard $(CURDIR)/[a-z]*/)))
+TESTS_SUBDIRS = $(sort $(dir $(wildcard $(CURDIR)/[[:lower:]]*/)))
 
 include $(BUILDRULES)
 
-- 
2.14.4