--- p7zip_4.55/CPP/myWindows/mySplitCommandLine.cpp.orig	Sat Apr 21 02:06:20 2007
+++ p7zip_4.55/CPP/myWindows/mySplitCommandLine.cpp	Fri Feb 18 15:34:14 2011
@@ -14,9 +14,11 @@
 
   { // define P7ZIP_HOME_DIR
     static char p7zip_home_dir[MAX_PATH];
-    AString dir,name;
-    my_windows_split_path(arguments[0],dir,name);
-    snprintf(p7zip_home_dir,sizeof(p7zip_home_dir),"P7ZIP_HOME_DIR=%s/",(const char *)dir);
+    static char default_path[] = "/usr/lib/7z";
+    char *env;
+    if ((env = getenv("P7ZIP_HOME_DIR")) == NULL)
+      env = default_path;
+    snprintf(p7zip_home_dir,sizeof(p7zip_home_dir),"P7ZIP_HOME_DIR=%s/",env);
     p7zip_home_dir[sizeof(p7zip_home_dir)-1] = 0;
     putenv(p7zip_home_dir);
   }