diff --git a/configure.ac b/configure.ac
index ff79698..728a550 100644
--- a/configure.ac
+++ b/configure.ac
@@ -148,7 +148,7 @@ AC_TYPE_PID_T
 # Checks for library functions.
 AC_FUNC_VPRINTF
 AC_FUNC_MMAP
-AC_CHECK_FUNCS([link mkstemp mkostemp _mktemp_s mkdtemp getopt getopt_long getprogname getexecname rand random lrand48 random_r rand_r regcomp regerror regexec regfree fstatvfs fstatfs lstat])
+AC_CHECK_FUNCS([link mkstemp mkostemp _mktemp_s mkdtemp getopt getopt_long getprogname getexecname rand random lrand48 random_r rand_r readlink regcomp regerror regexec regfree fstatvfs fstatfs lstat])
 
 dnl AC_CHECK_FUNCS doesn't check for header files.
 dnl posix_fadvise() may be not available in older libc.
diff --git a/src/fcdefault.c b/src/fcdefault.c
index c6397c0..4beda7c 100644
--- a/src/fcdefault.c
+++ b/src/fcdefault.c
@@ -149,7 +149,7 @@ retry:
 #else
 # if defined (HAVE_GETEXECNAME)
 	const char *p = getexecname ();
-# else
+# elif defined (HAVE_READLINK)
 	char buf[PATH_MAX + 1];
 	int len;
 	char *p = NULL;
@@ -160,6 +160,8 @@ retry:
 	    buf[len] = '\0';
 	    p = buf;
 	}
+# else
+	char *p = NULL;
 # endif
 	if (p)
 	{