openat: provide more convenience names

[pspp] / modules / memchr2-tests

diff --git a/modules/memchr2-tests b/modules/memchr2-tests
index 6056e2b9733613f6d5071e52120226294addbf41..99c02b1fccc603e9bef8c2e2a619bca7162f2afc 100644 (file)
--- a/modules/memchr2-tests
+++ b/modules/memchr2-tests
@@ -4,10 +4,12 @@ tests/zerosize-ptr.h
 m4/mmap-anon.m4
 
 Depends-on:
+extensions
 getpagesize
 
 configure.ac:
 gl_FUNC_MMAP_ANON
+AC_CHECK_HEADERS_ONCE([sys/mman.h])
 AC_CHECK_FUNCS_ONCE([mprotect])
 
 Makefile.am: