diff --git a/configure.ac b/configure.ac
index 3c1ed58..60af17e 100755
--- a/configure.ac
+++ b/configure.ac
@@ -77,7 +77,9 @@ AC_CHECK_FUNCS( \
     malloc \
     memset \
     memcpy \
+    mmap \
     perror \
+    posix_memalign \
     setrlimit \
     strnlen \
     strnstr \
diff --git a/include/pcp/config.h.in b/include/pcp/config.h.in
index e0196ac..3aaf7a8 100644
--- a/include/pcp/config.h.in
+++ b/include/pcp/config.h.in
@@ -82,6 +82,9 @@
 /* Define to 1 if you have the `memset' function. */
 #undef HAVE_MEMSET
 
+/* Define to 1 if you have the `mmap' function. */
+#undef HAVE_MMAP
+
 /* Define to 1 if you have the <netinet/in.h> header file. */
 #undef HAVE_NETINET_IN_H
 
diff --git a/libpcp/scrypt/crypto/scrypt_platform.h b/libpcp/scrypt/crypto/scrypt_platform.h
index e69de29..75bd98f 100644
--- a/libpcp/scrypt/crypto/scrypt_platform.h
+++ b/libpcp/scrypt/crypto/scrypt_platform.h
@@ -0,0 +1,6 @@
+#ifndef _SCRYPT_PLATFORM_H_
+#define	_SCRYPT_PLATFORM_H_
+
+#include "platform.h"
+
+#endif /* !_SCRYPT_PLATFORM_H_ */