Make M-x shell work in emacs.

ports/devenv/tests/devenv_small_test.cc

Index: ports/devenv/tests/devenv_small_test.cc
diff --git a/ports/devenv/tests/devenv_small_test.cc b/ports/devenv/tests/devenv_small_test.cc
index f2bf04927ea8ab6faac01b3e5121a8f48a83c015..df05bcbcf4ba965d2e0aa82e44712b552cb9d1ec 100644
--- a/ports/devenv/tests/devenv_small_test.cc
+++ b/ports/devenv/tests/devenv_small_test.cc
@@ -9,6 +9,8 @@
 #include <spawn.h>
 #include <unistd.h>
 
+#define pipe nacl_spawn_pipe
+
 static char *argv0;
 
 // Make sure that the plumbing works.
@@ -277,7 +279,7 @@ TEST(Pipes, StdoutEcho) {
   char buffer[100];
   size_t total = 0;
   while (total < strlen(check_msg)) {
-    ssize_t len = read(pipes[0], buffer+total, sizeof(buffer));
+    ssize_t len = read(pipes[0], buffer + total, sizeof(buffer));
     ASSERT_GE(len, 0);
     if (len == 0) break;
     total += len;