diff --git a/common_linux.h b/common_linux.h
index b0381d991..6766ff37c 100644
--- a/common_linux.h
+++ b/common_linux.h
@@ -86,7 +86,13 @@ static inline int my_set_mempolicy(int mode, const unsigned long *addr, unsigned
   return syscall(SYS_set_mempolicy, mode, addr, flag);
 }
 
-static inline int my_gettid(void) { return syscall(SYS_gettid); }
+static inline int my_gettid(void) { 
+#ifdef SYS_gettid
+return syscall(SYS_gettid); 
+#else
+return getpid();
+#endif
+}
 
 #endif
 #endif
diff --git a/ctest.c b/ctest.c
index 9fc0b0c40..95a5e8bb2 100644
--- a/ctest.c
+++ b/ctest.c
@@ -34,7 +34,7 @@ COMPILER_GNU
 OS_LINUX
 #endif
 
-#if defined(__FreeBSD__)
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
 OS_FREEBSD
 #endif
 
@@ -70,6 +70,11 @@ OS_CYGWIN_NT
 OS_INTERIX
 #endif
 
+#if defined(__gnu_hurd__)
+/* Hurd is very similar to GNU/Linux, it should work out of the box */
+OS_LINUX
+#endif
+
 #if defined(__i386) || defined(_X86)
 ARCH_X86
 #endif
diff --git a/driver/others/memory.c b/driver/others/memory.c
index 9b8863f39..af9b54eff 100644
--- a/driver/others/memory.c
+++ b/driver/others/memory.c
@@ -1128,7 +1128,7 @@ static BLASULONG   init_lock = 0UL;
 static void _touch_memory(blas_arg_t *arg, BLASLONG *range_m, BLASLONG *range_n, 
 			  void *sa, void *sb, BLASLONG pos) {
 
-#ifndef ARCH_POWER
+#if !defined(ARCH_POWER) && !defined(ARCH_SPARC)
 
   long size;
   BLASULONG buffer;
diff --git a/param.h b/param.h
index 5465c1cbd..c6cd354be 100644
--- a/param.h
+++ b/param.h
@@ -1482,7 +1482,7 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define GEMM_THREAD gemm_thread_mn
 #endif
 
-#if defined(SPARC) && defined(V9)
+#if (defined(SPARC) && defined(V9)) || defined(__sparc_v9__)
 
 #define SNUMOPT		2
 #define DNUMOPT		2