diff --git a/Makefile b/Makefile
index 392b1d25c..428262782 100644
--- a/Makefile
+++ b/Makefile
@@ -85,7 +85,7 @@ endif
 
 shared :
 ifndef NO_SHARED
-ifeq ($(OSNAME), Linux)
+ifeq ($(OSNAME), $(filter $(OSNAME),Linux SunOS))
 	@$(MAKE) -C exports so
 	@-ln -fs $(LIBSONAME) $(LIBPREFIX).so
 	@-ln -fs $(LIBSONAME) $(LIBPREFIX).so.$(MAJOR_VERSION)
diff --git a/Makefile.install b/Makefile.install
index 66ec3f8bc..5da4e68c9 100644
--- a/Makefile.install
+++ b/Makefile.install
@@ -29,7 +29,7 @@ install : 	lib.grd
 #for inc
 	@echo \#ifndef OPENBLAS_CONFIG_H > $(DESTDIR)$(OPENBLAS_INCLUDE_DIR)/openblas_config.h
 	@echo \#define OPENBLAS_CONFIG_H >> $(DESTDIR)$(OPENBLAS_INCLUDE_DIR)/openblas_config.h
-	@awk 'NF {print $$1, "OPENBLAS_"$$2, $$3}' config_last.h >> $(DESTDIR)$(OPENBLAS_INCLUDE_DIR)/openblas_config.h
+	@$(AWK) 'NF {print $$1, "OPENBLAS_"$$2, $$3}' config_last.h >> $(DESTDIR)$(OPENBLAS_INCLUDE_DIR)/openblas_config.h
 	@echo \#define OPENBLAS_VERSION \" OpenBLAS $(VERSION) \" >> $(DESTDIR)$(OPENBLAS_INCLUDE_DIR)/openblas_config.h
 	@cat openblas_config_template.h >> $(DESTDIR)$(OPENBLAS_INCLUDE_DIR)/openblas_config.h
 	@echo \#endif  \/\* OPENBLAS_CONFIG_H \*\/ >> $(DESTDIR)$(OPENBLAS_INCLUDE_DIR)/openblas_config.h
@@ -64,7 +64,7 @@ endif
 #for install shared library
 ifndef NO_SHARED
 	@echo Copying the shared library to $(DESTDIR)$(OPENBLAS_LIBRARY_DIR)
-ifeq ($(OSNAME), Linux)
+ifeq ($(OSNAME), $(filter $(OSNAME),Linux SunOS))
 	@install -pm755 $(LIBSONAME) $(DESTDIR)$(OPENBLAS_LIBRARY_DIR)
 	@cd $(DESTDIR)$(OPENBLAS_LIBRARY_DIR) ; \
 	ln -fs $(LIBSONAME) $(LIBPREFIX).so ; \
diff --git a/Makefile.system b/Makefile.system
index b3e83e2dd..1e9fcb161 100644
--- a/Makefile.system
+++ b/Makefile.system
@@ -967,7 +967,7 @@ ifndef MD5SUM
 MD5SUM	= md5sum
 endif
 
-AWK	= awk
+AWK	= nawk
 
 REVISION = -r$(VERSION)
 MAJOR_VERSION = $(word 1,$(subst ., ,$(VERSION)))
diff --git a/driver/others/blas_server.c b/driver/others/blas_server.c
index e1c644a80..c3bf80173 100644
--- a/driver/others/blas_server.c
+++ b/driver/others/blas_server.c
@@ -70,7 +70,7 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /*********************************************************************/
 
 #include "common.h"
-#if defined(OS_LINUX) || defined(OS_NETBSD) || defined(OS_DARWIN) || defined(OS_ANDROID)
+#if defined(OS_LINUX) || defined(OS_NETBSD) || defined(OS_DARWIN) || defined(OS_ANDROID) || defined(OS_SUNOS)
 #include <dlfcn.h>
 #include <signal.h>
 #include <sys/resource.h>
@@ -576,10 +576,12 @@ int blas_thread_init(void){
 	struct rlimit rlim;
         const char *msg = strerror(ret);
         fprintf(STDERR, "OpenBLAS blas_thread_init: pthread_create: %s\n", msg);
+#ifdef RLIMIT_NPROC
         if(0 == getrlimit(RLIMIT_NPROC, &rlim)) {
           fprintf(STDERR, "OpenBLAS blas_thread_init: RLIMIT_NPROC "
                   "%ld current, %ld max\n", (long)(rlim.rlim_cur), (long)(rlim.rlim_max));
         }
+#endif
         if(0 != raise(SIGINT)) {
           fprintf(STDERR, "OpenBLAS blas_thread_init: calling exit(3)\n");
           exit(EXIT_FAILURE);
diff --git a/driver/others/memory.c b/driver/others/memory.c
index af7bd81ce..a52032877 100644
--- a/driver/others/memory.c
+++ b/driver/others/memory.c
@@ -144,7 +144,7 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #if defined(_MSC_VER) && !defined(__clang__)
 #define CONSTRUCTOR __cdecl
 #define DESTRUCTOR __cdecl
-#elif defined(OS_DARWIN) && defined(C_GCC)
+#elif (defined(OS_DARWIN) || defined(OS_SUNOS)) && defined(C_GCC)
 #define CONSTRUCTOR	__attribute__ ((constructor))
 #define DESTRUCTOR	__attribute__ ((destructor))
 #else
@@ -169,7 +169,7 @@ void goto_set_num_threads(int num_threads) {};
 
 #else
 
-#ifdef OS_LINUX
+#if defined(OS_LINUX) || defined(OS_SUNOS)
 #ifndef NO_AFFINITY
 int get_num_procs(void);
 #else
diff --git a/exports/Makefile b/exports/Makefile
index 46d858e14..1595c5eae 100644
--- a/exports/Makefile
+++ b/exports/Makefile
@@ -114,7 +114,7 @@ endif
 dllinit.$(SUFFIX) : dllinit.c
 	$(CC) $(CFLAGS) -c -o $(@F) -s $<
 
-ifeq ($(OSNAME), Linux)
+ifeq ($(OSNAME), $(filter $(OSNAME),Linux SunOS))
 
 so : ../$(LIBSONAME)
 
diff --git a/f_check b/f_check
index e7e46886f..4c9d81e9f 100644
--- a/f_check
+++ b/f_check
@@ -1,5 +1,7 @@
 #!/usr/bin/perl
 
+$hostos   = `uname -s | sed -e s/\-.*//`;    chop($hostos);
+
 #
 # 1. Not specified
 #   1.1 Automatically detect, then check compiler
@@ -272,8 +274,9 @@ if ($link ne "") {
 	}
 
 	if ($flags =~ /^\-Y/) {
+	    next if ($hostos eq 'SunOS');
 	    $linker_L .= "-Wl,". $flags . " ";
-	    }
+        }
 
 	if ($flags =~ /^\-rpath\@/) {
 	    $flags =~ s/\@/\,/g;
diff --git a/getarch.c b/getarch.c
index 272b123cd..fb80a4c9b 100644
--- a/getarch.c
+++ b/getarch.c
@@ -86,7 +86,7 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <sys/types.h>
 #include <sys/sysctl.h>
 #endif
-#ifdef linux
+#if defined(linux) || defined(__sun__)
 #include <sys/sysinfo.h>
 #include <unistd.h>
 #endif
@@ -906,7 +906,7 @@ static int get_num_cores(void) {
   size_t len;
 #endif
 
-#ifdef linux
+#if defined(linux) || defined(__sun__)
   //returns the number of processors which are currently online
   return sysconf(_SC_NPROCESSORS_ONLN);