[git commit master] confstr: properly stringify version parts

[Bernhard Reutner-Fischer]

commit: http://git.uclibc.org/uClibc/commit/?id=c164cf038c522d153bf9ac6c4bddabe0be81a7e1
branch: http://git.uclibc.org/uClibc/commit/?id=refs/heads/master

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop at gmail.com>
---
 libc/unistd/confstr.c |    8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/libc/unistd/confstr.c b/libc/unistd/confstr.c
index 957ee4d..fc0bd59 100644
--- a/libc/unistd/confstr.c
+++ b/libc/unistd/confstr.c
@@ -52,11 +52,13 @@ size_t confstr (int name, char *buf, size_t len)
       string_len = sizeof("linuxthreads-x.xx");
 # elif defined __UCLIBC_HAS_THREADS_NATIVE__
 #  define __NPTL_VERSION ("NPTL " \
-		#__UCLIBC_MAJOR__ "." \
-		#__UCLIBC_MINOR__ "." \
-		#__UCLIBC_SUBLEVEL__)
+		__stringify(__UCLIBC_MAJOR__) "." \
+		__stringify(__UCLIBC_MINOR__) "." \
+		__stringify(__UCLIBC_SUBLEVEL__))
       string = __NPTL_VERSION;
       string_len = sizeof(__NPTL_VERSION);
+# else
+#  error unable to determine thread impl
 # endif
       break;
 #endif
-- 
1.6.3.3