diff -u -r ../php-5.6.17/ext/standard/proc_open.c ./ext/standard/proc_open.c > ~/php-proc_open.patch
--- ../php-5.6.17/ext/standard/proc_open.c	2016-03-04 18:41:21.108197300 +0100
+++ ./ext/standard/proc_open.c	2016-03-04 18:41:58.088196534 +0100
@@ -881,9 +881,9 @@
 		}
 
 		if (env.envarray) {
-			execle("/bin/sh", "sh", "-c", command, NULL, env.envarray);
+			execle("@TERMUX_PREFIX@/bin/sh", "sh", "-c", command, NULL, env.envarray);
 		} else {
-			execl("/bin/sh", "sh", "-c", command, NULL);
+			execl("@TERMUX_PREFIX@/bin/sh", "sh", "-c", command, NULL);
 		}
 		_exit(127);