commit f956d739e9b1451eff1592fa640358877dcf958c
Author: Samuel Tardieu <sam@rfc1149.net>
Date:   Thu Jul 19 20:53:24 2012 +0200

    Use LOCK_DIR environment variable if defined instead of /var/lock

diff --git a/ckutio.c b/ckutio.c
index 05564de..14b11cd 100644
--- a/ckutio.c
+++ b/ckutio.c
@@ -4971,6 +4971,11 @@ ttglckdir() {				/* Get Lockfile directory name */
 #endif /* __OpenBSD__ */
 }
 
+char *get_lockdir() {
+  char *lockdir = getenv("LOCK_DIR");
+  return lockdir ? lockdir : LOCK_DIR;
+}
+
 static int
 ttlock(ttdev) char *ttdev; {
 
@@ -5077,8 +5082,7 @@ ttlock(ttdev) char *ttdev; {
     char symlock[LFNAML];		/* Name for symlink lockfile name */
 #endif /* CKSYMLINK */
     char tmpnam[LFNAML+30];		/* Temporary lockfile name. */
-    char *lockdir = LOCK_DIR;		/* Defined near top of this file, */
-					/* or on cc command line. */
+    char *lockdir = get_lockdir();
     haslock = 0;                        /* Not locked yet. */
     *flfnam = '\0';			/* Lockfile name is empty. */
     lock2[0] = '\0';			/* Clear secondary lockfile name. */
diff --git a/ckuus4.c b/ckuus4.c
index 946603a..ba9afaf 100644
--- a/ckuus4.c
+++ b/ckuus4.c
@@ -13882,8 +13882,9 @@ nvlook(s) char *s; {
 #ifdef UNIX
       case VN_LCKDIR: {
 #ifndef NOUUCP
-          extern char * uucplockdir;
-          ckstrncpy(vvbuf,uucplockdir,VVBUFL);
+	  extern char *get_lockdir();
+	  char * lockdir = get_lockdir();
+          ckstrncpy(vvbuf,lockdir,VVBUFL);
           x = strlen(vvbuf);
           if (x > 0) {
               if (vvbuf[x-1] != '/') {