diff --git a/libc/Android.mk b/libc/Android.mk
index 3aced4e..c1716b1 100644
--- a/libc/Android.mk
+++ b/libc/Android.mk
@@ -67,13 +67,11 @@
     bionic/md5.c \
     bionic/memmem.c \
     bionic/memswap.c \
-    bionic/name_mem.c \
     bionic/pathconf.c \
     bionic/perror.c \
     bionic/ptsname.c \
     bionic/ptsname_r.c \
     bionic/pututline.c \
-    bionic/reboot.c \
     bionic/recv.c \
     bionic/sched_cpualloc.c \
     bionic/sched_cpucount.c \
@@ -212,6 +210,7 @@
     bionic/abort.cpp \
     bionic/access.cpp \
     bionic/assert.cpp \
+    bionic/__bionic_name_mem.cpp \
     bionic/bionic_time_conversions.cpp \
     bionic/brk.cpp \
     bionic/chmod.cpp \
@@ -268,6 +267,7 @@
     bionic/ptrace.cpp \
     bionic/raise.cpp \
     bionic/readlink.cpp \
+    bionic/reboot.cpp \
     bionic/rename.cpp \
     bionic/rmdir.cpp \
     bionic/sbrk.cpp \
diff --git a/libc/bionic/name_mem.c b/libc/bionic/__bionic_name_mem.cpp
similarity index 68%
rename from libc/bionic/name_mem.c
rename to libc/bionic/__bionic_name_mem.cpp
index 69e10c2..72a1d1e 100644
--- a/libc/bionic/name_mem.c
+++ b/libc/bionic/__bionic_name_mem.cpp
@@ -28,26 +28,23 @@
 
 #include "private/bionic_name_mem.h"
 
-/*
- * Local definitions of custom prctl arguments to set a vma name in some kernels
- */
+#include <sys/prctl.h>
+
+// Local definitions of custom prctl arguments to set a vma name in some kernels.
 #define BIONIC_PR_SET_VMA               0x53564d41
 #define BIONIC_PR_SET_VMA_ANON_NAME     0
 
-/*
- * Names a region of memory.  The name is expected to show up in /proc/pid/maps
- * and /proc/pid/smaps.  There is no guarantee that it will work, and it if it
- * does work it is likely to only work on memory that was allocated with
- * mmap(MAP_ANONYMOUS), and only on regions that are page aligned.  name should
- * be a pointer to a string that is valid for as long as the memory is mapped,
- * preferably a compile-time constant string.
- *
- * Returns -1 on error and sets errno.  If it returns an error naming page
- * aligned anonymous memory the kernel doesn't support naming, and an alternate
- * method of naming memory should be used (like ashmem).
- */
-int __bionic_name_mem(void *addr, size_t len, const char *name)
-{
-    return prctl(BIONIC_PR_SET_VMA, BIONIC_PR_SET_VMA_ANON_NAME,
-                 addr, len, name);
+// Names a region of memory.  The name is expected to show up in /proc/pid/maps
+// and /proc/pid/smaps.  There is no guarantee that it will work, and if it
+// does work it is likely to only work on memory that was allocated with
+// mmap(MAP_ANONYMOUS), and only on regions that are page aligned.  name should
+// be a pointer to a string that is valid for as long as the memory is mapped,
+// preferably a compile-time constant string.
+//
+// Returns -1 on error and sets errno.  If it returns an error naming page
+// aligned anonymous memory the kernel doesn't support naming, and an alternate
+// method of naming memory should be used (like ashmem).
+
+int __bionic_name_mem(void* addr, size_t len, const char* name) {
+    return prctl(BIONIC_PR_SET_VMA, BIONIC_PR_SET_VMA_ANON_NAME, addr, len, name);
 }
diff --git a/libc/bionic/reboot.c b/libc/bionic/reboot.cpp
similarity index 90%
rename from libc/bionic/reboot.c
rename to libc/bionic/reboot.cpp
index 0fe8cdc..9cf4411 100644
--- a/libc/bionic/reboot.c
+++ b/libc/bionic/reboot.cpp
@@ -25,10 +25,12 @@
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
+
 #include <unistd.h>
 #include <sys/reboot.h>
 
-int reboot (int  mode) 
-{
-    return __reboot( LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, mode, NULL );
+extern "C" int __reboot(int, int, int, void*);
+
+int reboot(int mode) {
+  return __reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, mode, NULL);
 }
diff --git a/libc/private/bionic_name_mem.h b/libc/private/bionic_name_mem.h
index 9f6163d..98716f4 100644
--- a/libc/private/bionic_name_mem.h
+++ b/libc/private/bionic_name_mem.h
@@ -25,6 +25,7 @@
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
+
 #ifndef _BIONIC_NAME_MEM_H
 #define _BIONIC_NAME_MEM_H
 
@@ -33,7 +34,7 @@
 
 __BEGIN_DECLS
 
-int __bionic_name_mem(void *addr, size_t len, const char *name);
+int __bionic_name_mem(void* addr, size_t len, const char* name);
 
 __END_DECLS
 
diff --git a/libc/upstream-freebsd/freebsd-compat.h b/libc/upstream-freebsd/freebsd-compat.h
index 74dc679..d5f1425 100644
--- a/libc/upstream-freebsd/freebsd-compat.h
+++ b/libc/upstream-freebsd/freebsd-compat.h
@@ -47,4 +47,8 @@
 /* This one is only needed as long as we have a mix of OpenBSD and FreeBSD stdio. */
 #define _sseek __sseek
 
+/* This is in BSD's <stdlib.h>. */
+#include <stdint.h>
+extern uint32_t arc4random_uniform(uint32_t upper_bound);
+
 #endif
diff --git a/libc/upstream-netbsd/port_before.h b/libc/upstream-netbsd/port_before.h
index 5e06e52..23d99c2 100644
--- a/libc/upstream-netbsd/port_before.h
+++ b/libc/upstream-netbsd/port_before.h
@@ -19,6 +19,7 @@
 
 #include "namespace.h"
 #include <sys/cdefs.h>
+#include <time.h>
 #include "private/arpa_nameser.h"
 
 #define ISC_FORMAT_PRINTF(a,b) __printflike(a,b)
diff --git a/libm/freebsd-compat.h b/libm/freebsd-compat.h
index 4b14fae..c63d407 100644
--- a/libm/freebsd-compat.h
+++ b/libm/freebsd-compat.h
@@ -23,4 +23,7 @@
 #define __strong_reference(sym,aliassym) \
     extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym)))
 
+/* digittoint is in BSD's <ctype.h>. */
+int digittoint(char ch);
+
 #endif