diff -u -r ../cache/vim-hg/src/option.c ./src/option.c
--- ../cache/vim-hg/src/option.c	2014-12-29 03:45:05.848110254 -0500
+++ ./src/option.c	2015-01-01 15:57:05.028319916 -0500
@@ -3173,7 +3173,7 @@
 	    mustfree = FALSE;
 # ifdef UNIX
 	    if (*names[n] == NUL)
-		p = (char_u *)"/tmp";
+		p = (char_u *)"@TERMUX_PREFIX@/tmp";
 	    else
 # endif
 		p = vim_getenv((char_u *)names[n], &mustfree);