[PATCH] m4: Check for FTW_ACTIONRETVAL along with nftw

[Khem Raj <raj.khem@xxxxxxxxx>]

FTW_ACTIONRETVAL is glibc specific extention which is used to implement
xfsfind but it may not be available on other C library implementations on Linux
e.g. musl. Therefore ensure that these defines are available before declaring
nftw() to be usable

Signed-off-by: Khem Raj <raj.khem@xxxxxxxxx>
Cc: Darrick J. Wong <djwong@xxxxxxxxxx>
Cc: Zorro Lang <zlang@xxxxxxxxxx>
---
 m4/package_libcdev.m4 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/m4/package_libcdev.m4 b/m4/package_libcdev.m4
index b41c087b..7f731044 100644
--- a/m4/package_libcdev.m4
+++ b/m4/package_libcdev.m4
@@ -132,7 +132,7 @@ AC_DEFUN([AC_HAVE_NFTW],
 #include <stddef.h>
 #include <ftw.h>
     ]], [[
-         nftw("/", (int (*)(const char *, const struct stat *, int, struct FTW *))1, 0, 0);
+         nftw("/", (int (*)(const char *, const struct stat *, int, struct FTW *))1, 0, FTW_ACTIONRETVAL);
     ]])],[have_nftw=yes
        AC_MSG_RESULT(yes)],[AC_MSG_RESULT(no)])
     AC_SUBST(have_nftw)
-- 
2.40.0