- Makefile, kernel/posix_compatibility.h/.cc: provide POSIX.2008 fake implementation of open_memstream()/fmemopen() for pre-POSIX.2008 systems.

- Makefile: OSX build rules (Apple's gcc and clang have no -rdynamic option and no librt).
 - Makefile: Generate debugger symbols and don't optimize for size in debug target (otherwise the debugger pretty hard to use).
 - Makefile: Reorder target concatenation in order to avoid use-before-built problems for source-include and linker dependencies.
 - Makefile: On OSX/macports, qmake-qt4 is named 'qmake' (the default Qt4 installation name, unless the distribution changes it).
 - Makefile: For OSX/Macports, we need to pass -I/opt/local/include and -L/opt/local/lib to give GNU libraries precedence over Apple's.
 - Makefile: Build a local minisat copy just like abc (to avoid dependency on broken/unmaintained distribution header files).
 - .gitignore: Ignore minisat directory.

kernel/posix_compatibility.h

@@ -0,0 +1,40 @@
+/*
+ *  yosys -- Yosys Open SYnthesis Suite
+ *
+ *  Copyright (C) 2012  Clifford Wolf <clifford@clifford.at>
+ *  
+ *  Permission to use, copy, modify, and/or distribute this software for any
+ *  purpose with or without fee is hereby granted, provided that the above
+ *  copyright notice and this permission notice appear in all copies.
+ *  
+ *  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ *  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ *  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ *  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ *  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#ifndef POSIX_COMPATIBILITY_H
+#define POSIX_COMPATIBILITY_H
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#if !(_XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L)
+FILE * open_memstream (char ** bufp, size_t * sizep);
+FILE * fmemopen (void * buf, size_t size, const char * mode);
+#endif
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif
+