Initial import of AMBuild infrastructure for C++ projects.

Former-commit-id: 53baa4f8c25525674f5e71f8f6ff2663928500ab

compiler/amxxpc/AMBuilder

@@ -0,0 +1,26 @@
+# vim: set sts=2 ts=8 sw=2 tw=99 et ft=python:
+import os.path
+
+binary = AMXX.Program(builder, 'amxxpc')
+
+binary.compiler.defines += [
+  'AMX_ANSIONLY',
+]
+
+if builder.target_platform == 'linux':
+  binary.compiler.postlink += [
+    '-ldl',
+    binary.Dep('libz.a'),
+  ]
+elif builder.target_platform == 'mac':
+  binary.compiler.postlink += [binary.Dep('libz-darwin.a')]
+elif builder.target_platform == 'windows':
+  binary.compiler.postlink += [binary.Dep('zlib.lib')]
+
+binary.sources = [
+  'amx.cpp',
+  'amxxpc.cpp',
+  'Binary.cpp',
+]
+
+AMXX.modules += [builder.Add(binary)]

compiler/amxxpc/amx.cpp

@@ -775,7 +775,7 @@ static void expand(unsigned char *code, long codesize, long memsize)
     do {
       codesize--;
       /* no input byte should be shifted out completely */
-      assert(shift<8*sizeof(cell));
+      assert(size_t(shift)<8*sizeof(cell));
       /* we work from the end of a sequence backwards; the final code in
        * a sequence may not have the continuation bit set */
       assert(shift>0 || (code[(size_t)codesize] & 0x80)==0);