Awhile back I wrote that freebsd.h was probably broken in the places where

it diverged from netbsd.h and openbsd.h.  This has now been confirmed.
Accordingly, make all three exactly alike.

src/include/port/freebsd.h

 #if defined(__i386__)
-typedef unsigned char slock_t;
-
+#define NEED_I386_TAS_ASM
 #define HAS_TEST_AND_SET
+typedef unsigned char slock_t;
 #endif
 
 #if defined(__sparc__)
 #define NEED_SPARC_TAS_ASM
 #define HAS_TEST_AND_SET
-#endif
-
-#if defined(__alpha__)
-typedef long int slock_t;
-
-#define HAS_TEST_AND_SET
+typedef unsigned char slock_t;
 #endif
 
 #if defined(__vax__)
-typedef unsigned char slock_t;
-
 #define NEED_VAX_TAS_ASM
 #define HAS_TEST_AND_SET
+typedef unsigned char slock_t;
 #endif
 
 #if defined(__ns32k__)
 #define NEED_NS32K_TAS_ASM
 #define HAS_TEST_AND_SET
+typedef unsigned char slock_t;
 #endif
 
 #if defined(__m68k__)
 #define HAS_TEST_AND_SET
+typedef unsigned char slock_t;
+#endif
+
+#if defined(__arm__)
+#define HAS_TEST_AND_SET
+typedef unsigned char slock_t;
 #endif
 
 #if defined(__mips__)
 /* #	undef HAS_TEST_AND_SET */
+#endif
+
+#if defined(__alpha__)
+#define HAS_TEST_AND_SET
+typedef unsigned long slock_t;
+#endif
 
+#if defined(__powerpc__)
+#define HAS_TEST_AND_SET
+typedef unsigned int slock_t;
 #endif

src/include/port/netbsd.h

@@ -44,5 +44,4 @@ typedef unsigned long slock_t;
 #if defined(__powerpc__)
 #define HAS_TEST_AND_SET
 typedef unsigned int slock_t;
-
 #endif

src/include/port/openbsd.h

@@ -44,5 +44,4 @@ typedef unsigned long slock_t;
 #if defined(__powerpc__)
 #define HAS_TEST_AND_SET
 typedef unsigned int slock_t;
-
 #endif