When search for wireless-tools, also check $PATH
--- aircrack-ng-1.1.orig/src/osdep/linux.c	2009-07-25 03:48:40.000000000 +0200
+++ aircrack-ng-1.1/src/osdep/linux.c	2012-01-12 16:22:05.772390762 +0100
@@ -244,6 +244,7 @@ static char * wiToolsPath(const char * t
                 "/usr/local/bin",
                 "/tmp"
         };
+	char *envpath, *token;
 
         nbelems = sizeof(paths) / sizeof(char *);
 
@@ -254,6 +255,14 @@ static char * wiToolsPath(const char * t
                         return path;
         }
 
+	/* search again in $PATH */
+	for (envpath = getenv("PATH"); ; envpath = NULL) {
+		if ((token = strtok(envpath, ":")) == NULL)
+			break;
+		if ((path = searchInside(token, tool)) != NULL)
+			return path;
+	}
+
         return NULL;
 }