diff --git a/makefile b/makefile
index 901a3ef2..53f80f45 100644
--- a/makefile
+++ b/makefile
@@ -329,23 +329,23 @@ profile:
 #This rule cleans the source tree of all compiled code, not including the pdf
 #documentation.
 clean:
-	rm -f `find . -type f | grep "[.]o" | xargs`
-	rm -f `find . -type f | grep "[.]lo"  | xargs`
-	rm -f `find . -type f | grep "[.]a" | xargs`
-	rm -f `find . -type f | grep "[.]la"  | xargs`
-	rm -f `find . -type f | grep "[.]obj" | xargs`
-	rm -f `find . -type f | grep "[.]lib" | xargs`
-	rm -f `find . -type f | grep "[.]exe" | xargs`
-	rm -f `find . -type f | grep "[.]gcda" | xargs`
-	rm -f `find . -type f | grep "[.]gcno" | xargs`
-	rm -f `find . -type f | grep "[.]il" | xargs`
-	rm -f `find . -type f | grep "[.]dyn" | xargs`
-	rm -f `find . -type f | grep "[.]dpi" | xargs`
-	rm -rf `find . -type d | grep "[.]libs" | xargs`
+	rm -f `find . -type f -name "*.o" | xargs`
+	rm -f `find . -type f -name "*.lo"  | xargs`
+	rm -f `find . -type f -name "*.a" | xargs`
+	rm -f `find . -type f -name "*.la"  | xargs`
+	rm -f `find . -type f -name "*.obj" | xargs`
+	rm -f `find . -type f -name "*.lib" | xargs`
+	rm -f `find . -type f -name "*.exe" | xargs`
+	rm -f `find . -type f -name "*.gcda" | xargs`
+	rm -f `find . -type f -name "*.gcno" | xargs`
+	rm -f `find . -type f -name "*.il" | xargs`
+	rm -f `find . -type f -name "*.dyn" | xargs`
+	rm -f `find . -type f -name "*.dpi" | xargs`
+	rm -rf `find . -type d -name "*.libs" | xargs`
 	rm -f crypt.aux  crypt.dvi  crypt.idx  crypt.ilg  crypt.ind  crypt.log crypt.toc
 	rm -f $(TV) $(PROF) $(SMALL) $(CRYPT) $(HASHSUM) $(MULTI) $(TIMING) $(TEST)
 	rm -rf doc/doxygen
-	rm -f doc/*.pdf
+	rm -f `find . -type f -name "*.pdf" | grep -FL crypt.pdf | xargs`
 	rm -f *.txt
 
 #build the doxy files (requires Doxygen, tetex and patience)
diff --git a/src/ciphers/camellia.c b/src/ciphers/camellia.c
index 06510125..e7b172f0 100644
--- a/src/ciphers/camellia.c
+++ b/src/ciphers/camellia.c
@@ -686,6 +686,21 @@ int camellia_test(void)
       }
       camellia_done(&skey);
       if (XMEMCMP(tests[x].ct, buf[0], 16) || XMEMCMP(tests[x].pt, buf[1], 16)) {
+#if 0
+         int i, j;
+         printf ("\n\nLTC_CAMELLIA failed for x=%d, I got:\n", x);
+         for (i = 0; i < 2; i++) {
+            const unsigned char *expected, *actual;
+            expected = (i ? tests[x].pt : tests[x].ct);
+            actual = buf[i];
+            printf ("expected    actual   (%s)\n", (i ? "plaintext" : "ciphertext"));
+            for (j = 0; j < 16; j++) {
+               const char *eq = (expected[j] == actual[j] ? "==" : "!=");
+               printf ("     %02x  %s  %02x\n", expected[j], eq, actual[j]);
+            }
+            printf ("\n");
+         }
+#endif
          return CRYPT_FAIL_TESTVECTOR;
       }
    }
diff --git a/src/ciphers/kseed.c b/src/ciphers/kseed.c
index a163c954..1065d8ca 100644
--- a/src/ciphers/kseed.c
+++ b/src/ciphers/kseed.c
@@ -346,6 +346,21 @@ int kseed_test(void)
        kseed_ecb_encrypt(tests[x].pt, buf[0], &skey);
        kseed_ecb_decrypt(buf[0], buf[1], &skey);
        if (XMEMCMP(buf[0], tests[x].ct, 16) || XMEMCMP(buf[1], tests[x].pt, 16)) {
+#if 0
+          int i, j;
+          printf ("\n\nLTC_KSEED failed for x=%d, I got:\n", x);
+          for (i = 0; i < 2; i++) {
+             const unsigned char *expected, *actual;
+             expected = (i ? tests[x].pt : tests[x].ct);
+             actual = buf[i];
+             printf ("expected    actual   (%s)\n", (i ? "plaintext" : "ciphertext"));
+             for (j = 0; j < 16; j++) {
+                const char *eq = (expected[j] == actual[j] ? "==" : "!=");
+                printf ("     %02x  %s  %02x\n", expected[j], eq, actual[j]);
+             }
+             printf ("\n");
+          }
+#endif
           return CRYPT_FAIL_TESTVECTOR;
        }
    }
diff --git a/src/headers/tomcrypt_cfg.h b/src/headers/tomcrypt_cfg.h
index f7ad3cc0..cc3b6dff 100644
--- a/src/headers/tomcrypt_cfg.h
+++ b/src/headers/tomcrypt_cfg.h
@@ -128,6 +128,22 @@ LTC_EXPORT int   LTC_CALL XSTRCMP(const char *s1, const char *s2);
    #define ENDIAN_NEUTRAL
 #endif
 
+/* gcc 4.3 and up has a bswap builtin; detect it by gcc version.
+ * clang also supports the bswap builtin, and although clang pretends
+ * to be gcc (macro-wise, anyway), clang pretends to be a version
+ * prior to gcc 4.3, so we can't detect bswap that way.  Instead,
+ * clang has a __has_builtin mechanism that can be used to check
+ * for builtins:
+ * http://clang.llvm.org/docs/LanguageExtensions.html#feature_check */
+#ifndef __has_builtin
+   #define __has_builtin(x) 0
+#endif
+#if !defined(LTC_NO_BSWAP) && defined(__GNUC__) &&                      \
+   ((__GNUC__ * 100 + __GNUC_MINOR__ >= 403) ||                         \
+    (__has_builtin(__builtin_bswap32) && __has_builtin(__builtin_bswap64)))
+   #define LTC_HAVE_BSWAP_BUILTIN
+#endif
+
 #endif
 
 
diff --git a/src/headers/tomcrypt_custom.h b/src/headers/tomcrypt_custom.h
index 362403bc..97de5de8 100644
--- a/src/headers/tomcrypt_custom.h
+++ b/src/headers/tomcrypt_custom.h
@@ -306,8 +306,8 @@
 /* #define LTC_RSA_BLINDING */
 
 /* Include Diffie-Hellman support */
-#ifndef GPM_DESC
-/* is_prime fails for GPM */
+#ifndef GMP_DESC
+/* is_prime fails for GMP */
 #define MDH
 /* Supported Key Sizes */
 #define DH768
diff --git a/src/headers/tomcrypt_macros.h b/src/headers/tomcrypt_macros.h
index 6e4d757a..86156cce 100644
--- a/src/headers/tomcrypt_macros.h
+++ b/src/headers/tomcrypt_macros.h
@@ -67,7 +67,17 @@
 
 #ifdef ENDIAN_LITTLE
 
-#if !defined(LTC_NO_BSWAP) && (defined(INTEL_CC) || (defined(__GNUC__) && (defined(__DJGPP__) || defined(__CYGWIN__) || defined(__MINGW32__) || defined(__i386__) || defined(__x86_64__))))
+#ifdef LTC_HAVE_BSWAP_BUILTIN
+
+#define STORE32H(x, y)                          \
+   { ulong32 __t = __builtin_bswap32 ((x));     \
+      XMEMCPY ((y), &__t, 4); }
+
+#define LOAD32H(x, y)                           \
+   { XMEMCPY (&(x), (y), 4);                    \
+      (x) = __builtin_bswap32 ((x)); }
+
+#elif !defined(LTC_NO_BSWAP) && (defined(INTEL_CC) || (defined(__GNUC__) && (defined(__DJGPP__) || defined(__CYGWIN__) || defined(__MINGW32__) || defined(__i386__) || defined(__x86_64__))))
 
 #define STORE32H(x, y)           \
 asm __volatile__ (               \
@@ -96,22 +106,31 @@ asm __volatile__ (             \
 
 #endif
 
+#ifdef LTC_HAVE_BSWAP_BUILTIN
+
+#define STORE64H(x, y)                          \
+   { ulong64 __t = __builtin_bswap64 ((x));     \
+      XMEMCPY ((y), &__t, 8); }
+
+#define LOAD64H(x, y)                           \
+   { XMEMCPY (&(x), (y), 8);                    \
+      (x) = __builtin_bswap64 ((x)); }
 
 /* x86_64 processor */
-#if !defined(LTC_NO_BSWAP) && (defined(__GNUC__) && defined(__x86_64__))
+#elif !defined(LTC_NO_BSWAP) && (defined(__GNUC__) && defined(__x86_64__))
 
 #define STORE64H(x, y)           \
 asm __volatile__ (               \
    "bswapq %0     \n\t"          \
    "movq   %0,(%1)\n\t"          \
    "bswapq %0     \n\t"          \
-      ::"r"(x), "r"(y));
+   ::"r"(x), "r"(y): "memory");
 
 #define LOAD64H(x, y)          \
 asm __volatile__ (             \
    "movq (%1),%0\n\t"          \
    "bswapq %0\n\t"             \
-   :"=r"(x): "r"(y));
+   :"=r"(x): "r"(y): "memory");
 
 #else
 
diff --git a/src/math/gmp_desc.c b/src/math/gmp_desc.c
index 9d7ff072..403211ba 100644
--- a/src/math/gmp_desc.c
+++ b/src/math/gmp_desc.c
@@ -487,7 +487,7 @@ const ltc_math_descriptor gmp_desc = {
    NULL,
 #endif /* LTC_ECC_SHAMIR */
 #else
-   NULL, NULL, NULL, NULL, NULL
+   NULL, NULL, NULL, NULL, NULL,
 #endif /* LTC_MECC */
 
 #ifdef LTC_MRSA
diff --git a/src/misc/crypt/crypt.c b/src/misc/crypt/crypt.c
index 12983979..e1b1ce03 100644
--- a/src/misc/crypt/crypt.c
+++ b/src/misc/crypt/crypt.c
@@ -286,7 +286,9 @@ const char *crypt_build_settings =
 #if defined(_MSC_VER)
     "   MSVC compiler detected.\n"
 #endif
-#if defined(__GNUC__)
+#if defined(__clang_version__)
+    "   Clang compiler " __clang_version__ ".\n"
+#elif defined(__GNUC__)         /* clang also defines __GNUC__ */
     "   GCC compiler detected.\n"
 #endif
 #if defined(INTEL_CC)
diff --git a/testprof/cipher_hash_test.c b/testprof/cipher_hash_test.c
index 666d9139..dba7d9ad 100644
--- a/testprof/cipher_hash_test.c
+++ b/testprof/cipher_hash_test.c
@@ -11,25 +11,25 @@ int cipher_hash_test(void)
    
    /* test ciphers */
    for (x = 0; cipher_descriptor[x].name != NULL; x++) {
-      DO(cipher_descriptor[x].test());
+      DOX(cipher_descriptor[x].test(), cipher_descriptor[x].name);
    }
    
    /* test hashes */
    for (x = 0; hash_descriptor[x].name != NULL; x++) {
-      DO(hash_descriptor[x].test());
+      DOX(hash_descriptor[x].test(), hash_descriptor[x].name);
    }
  
    /* test prngs (test, import/export */
    for (x = 0; prng_descriptor[x].name != NULL; x++) {
-      DO(prng_descriptor[x].test());
-      DO(prng_descriptor[x].start(&nprng));
-      DO(prng_descriptor[x].add_entropy((unsigned char *)"helloworld12", 12, &nprng));
-      DO(prng_descriptor[x].ready(&nprng));
+      DOX(prng_descriptor[x].test(), prng_descriptor[x].name);
+      DOX(prng_descriptor[x].start(&nprng), prng_descriptor[x].name);
+      DOX(prng_descriptor[x].add_entropy((unsigned char *)"helloworld12", 12, &nprng), prng_descriptor[x].name);
+      DOX(prng_descriptor[x].ready(&nprng), prng_descriptor[x].name);
       n = sizeof(buf);
-      DO(prng_descriptor[x].pexport(buf, &n, &nprng));
+      DOX(prng_descriptor[x].pexport(buf, &n, &nprng), prng_descriptor[x].name);
       prng_descriptor[x].done(&nprng);
-      DO(prng_descriptor[x].pimport(buf, n, &nprng));
-      DO(prng_descriptor[x].ready(&nprng));
+      DOX(prng_descriptor[x].pimport(buf, n, &nprng), prng_descriptor[x].name);
+      DOX(prng_descriptor[x].ready(&nprng), prng_descriptor[x].name);
       if (prng_descriptor[x].read(buf, 100, &nprng) != 100) {
          fprintf(stderr, "Error reading from imported PRNG!\n");
          exit(EXIT_FAILURE);
diff --git a/testprof/test_driver.c b/testprof/test_driver.c
index 6e546684..b728f911 100644
--- a/testprof/test_driver.c
+++ b/testprof/test_driver.c
@@ -1,9 +1,12 @@
 #include <tomcrypt_test.h>
 
-void run_cmd(int res, int line, char *file, char *cmd)
+void run_cmd(int res, int line, char *file, char *cmd, const char *algorithm)
 {
    if (res != CRYPT_OK) {
-      fprintf(stderr, "%s (%d)\n%s:%d:%s\n", error_to_string(res), res, file, line, cmd);
+      fprintf(stderr, "%s (%d)%s%s\n%s:%d:%s\n",
+              error_to_string(res), res,
+              (algorithm ? " - " : ""), (algorithm ? algorithm : ""),
+              file, line, cmd);
       if (res != CRYPT_NOP) {
          exit(EXIT_FAILURE);
       }
diff --git a/testprof/tomcrypt_test.h b/testprof/tomcrypt_test.h
index 237eee32..84e173c6 100644
--- a/testprof/tomcrypt_test.h
+++ b/testprof/tomcrypt_test.h
@@ -36,12 +36,14 @@ typedef struct {
 
 extern prng_state yarrow_prng;
 
-void run_cmd(int res, int line, char *file, char *cmd);
+void run_cmd(int res, int line, char *file, char *cmd, const char *algorithm);
 
 #ifdef LTC_VERBOSE
-#define DO(x) do { fprintf(stderr, "%s:\n", #x); run_cmd((x), __LINE__, __FILE__, #x); } while (0);
+#define DO(x) do { fprintf(stderr, "%s:\n", #x); run_cmd((x), __LINE__, __FILE__, #x, NULL); } while (0);
+#define DOX(x, str) do { fprintf(stderr, "%s - %s:\n", #x, (str)); run_cmd((x), __LINE__, __FILE__, #x, (str)); } while (0);
 #else
-#define DO(x) do { run_cmd((x), __LINE__, __FILE__, #x); } while (0);
+#define DO(x) do { run_cmd((x), __LINE__, __FILE__, #x, NULL); } while (0);
+#define DOX(x, str) do { run_cmd((x), __LINE__, __FILE__, #x, (str)); } while (0);
 #endif
 
 /* TESTS */