math: Fix some C++ test errors on Cygwin.

[pspp] / modules / pipe2

diff --git a/modules/pipe2 b/modules/pipe2
index 036d8730b66db6be6a7714381aa5c9d8d4232a82..45813962cb83e42474d9df3ebac32ee1d1d75842 100644 (file)
--- a/modules/pipe2
+++ b/modules/pipe2
@@ -9,6 +9,7 @@ Depends-on:
 unistd
 fcntl-h
 binary-io
+extensions
 
 configure.ac:
 gl_FUNC_PIPE2