diff --git a/adb/usb_vendors.c b/adb/usb_vendors.c
index 0c46a0c..0357ced 100755
--- a/adb/usb_vendors.c
+++ b/adb/usb_vendors.c
@@ -51,7 +51,9 @@
 // BYD's USB Vendor ID
 #define VENDOR_ID_BYD           0x1D91
 // Compal's USB Vendor ID
-#define VENDOR_ID_COMPAL        0x1219
+#define VENDOR_ID_COMPAL        0x04B7
+// Compalcomm's USB Vendor ID
+#define VENDOR_ID_COMPALCOMM    0x1219
 // Dell's USB Vendor ID
 #define VENDOR_ID_DELL          0x413c
 // ECS's USB Vendor ID
@@ -195,6 +197,7 @@
     VENDOR_ID_ASUS,
     VENDOR_ID_BYD,
     VENDOR_ID_COMPAL,
+    VENDOR_ID_COMPALCOMM,
     VENDOR_ID_DELL,
     VENDOR_ID_ECS,
     VENDOR_ID_EMERGING_TECH,
diff --git a/debuggerd/mips/machine.cpp b/debuggerd/mips/machine.cpp
index ab34182..5c82d4d 100644
--- a/debuggerd/mips/machine.cpp
+++ b/debuggerd/mips/machine.cpp
@@ -32,10 +32,22 @@
 
 #define R(x) (static_cast<unsigned int>(x))
 
+// The MIPS uapi ptrace.h has the wrong definition for pt_regs. PTRACE_GETREGS
+// writes 64-bit quantities even though the public struct uses 32-bit ones.
+struct pt_regs_mips_t {
+  uint64_t regs[32];
+  uint64_t lo;
+  uint64_t hi;
+  uint64_t cp0_epc;
+  uint64_t cp0_badvaddr;
+  uint64_t cp0_status;
+  uint64_t cp0_cause;
+};
+
 // If configured to do so, dump memory around *all* registers
 // for the crashing thread.
 void dump_memory_and_code(log_t* log, pid_t tid, int scope_flags) {
-  pt_regs r;
+  pt_regs_mips_t r;
   if (ptrace(PTRACE_GETREGS, tid, 0, &r)) {
     return;
   }
@@ -78,7 +90,7 @@
 }
 
 void dump_registers(log_t* log, pid_t tid, int scope_flags) {
-  pt_regs r;
+  pt_regs_mips_t r;
   if(ptrace(PTRACE_GETREGS, tid, 0, &r)) {
     _LOG(log, scope_flags, "cannot get registers: %s\n", strerror(errno));
     return;
diff --git a/include/backtrace/BacktraceMap.h b/include/backtrace/BacktraceMap.h
index 13083bd..c717f09 100644
--- a/include/backtrace/BacktraceMap.h
+++ b/include/backtrace/BacktraceMap.h
@@ -18,6 +18,7 @@
 #define _BACKTRACE_BACKTRACE_MAP_H
 
 #include <stdint.h>
+#include <sys/types.h>
 #ifdef USE_MINGW
 // MINGW does not define these constants.
 #define PROT_NONE 0
diff --git a/libbacktrace/UnwindMap.cpp b/libbacktrace/UnwindMap.cpp
index 1615518..4f9831b 100644
--- a/libbacktrace/UnwindMap.cpp
+++ b/libbacktrace/UnwindMap.cpp
@@ -15,6 +15,7 @@
  */
 
 #include <pthread.h>
+#include <stdlib.h>
 #include <sys/types.h>
 #include <unistd.h>
 
diff --git a/libdiskconfig/Android.mk b/libdiskconfig/Android.mk
index b5d83fa..624e385 100644
--- a/libdiskconfig/Android.mk
+++ b/libdiskconfig/Android.mk
@@ -12,6 +12,7 @@
 LOCAL_MODULE := libdiskconfig
 LOCAL_MODULE_TAGS := optional
 LOCAL_SYSTEM_SHARED_LIBRARIES := libcutils liblog libc
+LOCAL_CFLAGS := -Werror
 include $(BUILD_SHARED_LIBRARY)
 
 ifeq ($(HOST_OS),linux)
diff --git a/libutils/Printer.cpp b/libutils/Printer.cpp
index 263e740..1dc8632 100644
--- a/libutils/Printer.cpp
+++ b/libutils/Printer.cpp
@@ -25,10 +25,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-#ifndef __BIONIC__
-#define fdprintf dprintf
-#endif
-
 namespace android {
 
 /*
@@ -120,7 +116,7 @@
     }
 
 #ifndef USE_MINGW
-    fdprintf(mFd, mFormatString, mPrefix, string);
+    dprintf(mFd, mFormatString, mPrefix, string);
 #endif
 }
 
diff --git a/toolbox/grep/util.c b/toolbox/grep/util.c
index 497db06..5712fee 100644
--- a/toolbox/grep/util.c
+++ b/toolbox/grep/util.c
@@ -273,7 +273,7 @@
 	return (c);
 }
 
-#define iswword(x)	(iswalnum((x)) || (x) == L'_')
+#define iswword(x)	(iswalnum((wint_t)(x)) || (x) == L'_')
 
 /*
  * Processes a line comparing it with the specified patterns.  Each pattern
@@ -323,7 +323,7 @@
 				continue;
 			/* Check for whole word match */
 			if (fg_pattern[i].word && pmatch.rm_so != 0) {
-				wint_t wbegin, wend;
+				wchar_t wbegin, wend;
 
 				wbegin = wend = L' ';
 				if (pmatch.rm_so != 0 &&
diff --git a/toolbox/insmod.c b/toolbox/insmod.c
index fb1448b..d252433 100644
--- a/toolbox/insmod.c
+++ b/toolbox/insmod.c
@@ -73,7 +73,7 @@
 		char *ptr = opts;
 
 		for (i = 2; (i < argc) && (ptr < end); i++) {
-			len = MIN(strlen(argv[i]), end - ptr);
+			len = MIN(strlen(argv[i]), (size_t)(end - ptr));
 			memcpy(ptr, argv[i], len);
 			ptr += len;
 			*ptr++ = ' ';
diff --git a/toolbox/watchprops.c b/toolbox/watchprops.c
index 9921dbc..06cdebe 100644
--- a/toolbox/watchprops.c
+++ b/toolbox/watchprops.c
@@ -23,9 +23,9 @@
 
 static void announce(char *name, char *value)
 {
-    char *x;
+    unsigned char *x;
     
-    for(x = value; *x; x++) {
+    for(x = (unsigned char *)value; *x; x++) {
         if((*x < 32) || (*x > 127)) *x = '.';
     }