Native windows support using clang (#227)

* Add appveyor file

* Build script

* Remove fPIC for now

* copy as

* set CC and CXX

* Change the order of immintrin.h

* Fix testsuite header

* Move testsuite defs to .c

* Fix appveyor file

* Remove fPIC again and fix strerror_r missing bug

* Remove appveyor script

* cd to blis directory

* Fix sleep implementation

* Add f2c_types_win.h

* Fix f2c compilation

* Remove rdp and rename appveyor.yml

* Remove setenv declaration in test header

* set CPICFLAGS to empty

* Fix another immintrin.h issue

* Escape CFLAGS and LDFLAGS

* Fix more ?mmintrin.h issues

* Build x86_64 in appveyor

* override LIBM LIBPTHREAD AR AS

* override pthreads in configure

* Move windows definitions to bli_winsys.h

* Fix LIBPTHREAD default value

* Build intel64 in appveyor for now

frame/base/bli_winsys.c

@@ -0,0 +1,44 @@
+/*
+
+   BLIS
+   An object-based framework for developing high-performance BLAS-like
+   libraries.
+
+   Copyright (C) 2014, The University of Texas at Austin
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions are
+   met:
+    - Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    - Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+    - Neither the name of The University of Texas at Austin nor the names
+      of its contributors may be used to endorse or promote products
+      derived from this software without specific prior written permission.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+   HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+*/
+
+#ifdef _MSC_VER
+#include <windows.h>
+int setenv(const char *name, const char *value, int overwrite) {
+    _putenv_s(name, value);
+}
+
+void sleep(int x) {
+    Sleep(x*1000);
+}
+#endif

frame/base/bli_winsys.h

@@ -0,0 +1,40 @@
+/*
+
+   BLIS
+   An object-based framework for developing high-performance BLAS-like
+   libraries.
+
+   Copyright (C) 2014, The University of Texas at Austin
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions are
+   met:
+    - Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    - Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+    - Neither the name of The University of Texas at Austin nor the names
+      of its contributors may be used to endorse or promote products
+      derived from this software without specific prior written permission.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+   HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+*/
+
+
+#ifdef _MSC_VER
+#include <windows.h>
+int setenv(const char *name, const char *value, int overwrite);
+void sleep(int x);
+#endif

frame/include/blis.h

@@ -173,6 +173,10 @@ extern "C" {
 
 #include "bli_cblas.h"
 
+// -- Windows definitions
+
+#include "bli_winsys.h"
+
 
 // End extern "C" construct block.
 #ifdef __cplusplus

frame/thread/bli_thread.h

@@ -51,6 +51,10 @@
 void bli_thread_init( void );
 void bli_thread_finalize( void );
 
+#ifdef _MSC_VER
+#define strerror_r(errno,buf,len) strerror_s(buf,len,errno)
+#endif
+
 // Thread range-related prototypes.
 void bli_thread_get_range_sub
      (