Merge branch 'msvc-support' into msvc-vulkan

doc/asymptote.texi

@@ -6329,9 +6329,7 @@ To store the figures in a separate directory named @code{asy}, one can define
 @verbatim
 \def\asydir{asy}
 @end verbatim
-in @code{latexusage.tex} and put the contents of
-@url{https://raw.githubusercontent.com/vectorgraphics/asymptote/HEAD/doc/latexmkrc_asydir}
-in a file @code{latexmkrc} in the same directory.
+in @code{latexusage.tex}.
 @noindent
 External @code{Asymptote} code can be included with
 @cindex @code{asyinclude}

doc/latexmkrc

@@ -1,4 +1,4 @@
-sub asy {return system("asy \"$_[0]\"");}
+sub asy {return system("asy -o '$_[0]' '$_[0]'");}
 add_cus_dep("asy","eps",0,"asy");
 add_cus_dep("asy","pdf",0,"asy");
 add_cus_dep("asy","tex",0,"asy");

src/dec.cc

@@ -550,14 +550,19 @@ types::ty *inferType(position pos, coenv &e, varinit *init)
   }
 
   exp *base = dynamic_cast<exp *>(init);
+  bool Void=false;
+
   if (base) {
     types::ty *t = base->cgetType(e);
-    if (t->kind != ty_overloaded)
+    Void=t->kind == ty_void;
+    if (t->kind != ty_overloaded && !Void)
       return t;
   }
 
   em.error(pos);
-  em << "could not infer type of initializer";
+  em << (Void ? "cannot infer from void" :
+         "could not infer type of initializer");
+
   return primError();
 }
 

src/util.cc

@@ -326,7 +326,7 @@ string outpath(string name)
 
 string buildname(string prefix, string suffix, string aux)
 {
-  string name=prefix+aux;
+  string name=outpath(prefix)+aux;
   if(!suffix.empty()) name += "."+suffix;
   return name;
 }