Switch to generated config header. New allocator

include/all.h

@@ -2,7 +2,7 @@
 **
 ** This file is in the public domain.
 */
-#   include "version.h"
+#   include "config.h"
   /** c3: C environment.
   **/
 #   include "c/portable.h"  //  C and OS portability
@@ -12,7 +12,7 @@
 
   /** u3: noun environment.
   **/
-#   include "noun/aliases.h"   //  general u3 
+#   include "noun/aliases.h"   //  general u3
 
 #   include "noun/allocate.h"  //  u3a: allocation
 #   include "noun/events.h"    //  u3e: persistence
@@ -24,7 +24,7 @@
 #   include "noun/options.h"   //  u3o: config options
 #   include "noun/retrieve.h"  //  u3r: noun access (error returns)
 #   include "noun/trace.h"     //  u3t: profiling / tracing
-#   include "noun/xtract.h"    //  u3x: noun access (error crashes) 
+#   include "noun/xtract.h"    //  u3x: noun access (error crashes)
 #   include "noun/vortex.h"    //  u3v: arvo kernel
 #   include "noun/zave.h"      //  u3z: memoization
 
@@ -52,4 +52,3 @@
   */
 #   define uH    u3_term_io_hija()
 #   define uL(x) u3_term_io_loja(x)
-

include/c/portable.h

@@ -4,10 +4,15 @@
 */
   /** Must be compiled on gcc with C99 support.
   **/
+
+#include "config.h"
+
 #    ifndef __GNUC__
 #      error "port me"
 #    endif
+#    ifndef _GNU_SOURCE
 #    define _GNU_SOURCE
+#    endif
 
 
   /** System include files.

include/config.h.in

@@ -0,0 +1,13 @@
+#ifndef CONFIG_H
+#define CONFIG_H
+
+#mesondefine URBIT_VERSION
+
+#mesondefine U3_OS_linux
+#mesondefine U3_OS_bsd
+#mesondefine U3_OS_osx
+
+#mesondefine U3_OS_ENDIAN_little
+#mesondefine U3_OS_ENDIAN_big
+
+#endif /*CONFIG_H*/

include/noun/allocate.h

@@ -291,6 +291,22 @@
           void*
           u3a_wealloc(void* lag_v, c3_w len_w);
 
+        /* u3a_push(): allocate space on the road stack
+        */
+          void*
+          u3a_push(c3_w len_w);
+
+        /* u3a_pop(): deallocate space on the road stack
+        */
+          void
+          u3a_pop(c3_w len_w);
+
+        /* u3a_peek(): examine the top of the road stack
+        */
+          void*
+          u3a_peek(c3_w len_w);
+
+
       /* C-style aligned allocation - *not* compatible with above.
       */
         /* u3a_malloc(): aligned storage measured in bytes.

include/version.h

@@ -1 +0,0 @@
-#define URBIT_VERSION "0.5.1"