Setup.hs: reduce zero build time by a couple of seconds

The RGL is now compile with only three calls to GF (prelude, present,
alltenses). This also makes even more parallelism available to GF for speeding
up full builds of the RGL.

Setup.hs

@@ -81,20 +81,13 @@ rglCommands =
        createDirectoryIfMissing True prelude_dst_dir
        files <- ls prelude_src_dir
        run_gfc bi (["-s", "--gfo-dir="++prelude_dst_dir] ++ [prelude_src_dir </> file | file <- files])
-  , RGLCommand "lang"    True  $ \modes args bi ->
-       parallel_ [gfcn bi mode (summary lang++" "++summary symbol) files
-                   | mode <- modes,
-                     let files = map lang (optml mode langsLang args)++
-                                 map symbol (optml mode langsAPI args)]
-  , RGLCommand "compat"  True  $ \modes args bi ->
-       gfc bi modes (summary compat) (map compat (optl langsCompat args))
-  , RGLCommand "api"     True  $ \modes args bi ->
-       parallel_ [gfcn bi mode (summary try++" "++summary symbolic) files
-                   | mode <- modes,
-                     let files = map try (optml mode langsAPI args) ++
-                                 map symbolic (optml mode langsSymbolic args)]
-  , RGLCommand "web"     True  $ \modes args bi ->
-       buildWeb (default_gf bi) bi
+
+  , RGLCommand "all"     True  $ gfcp [l,s,c,t,sc]
+  , RGLCommand "lang"    False $ gfcp [l,s]
+  , RGLCommand "api"     False $ gfcp [t,sc]
+  , RGLCommand "compat"  False $ gfcp [c]
+  , RGLCommand "web"     True  $ \ _ _ bi -> buildWeb (default_gf bi) bi
+
   , RGLCommand "pgf"     False $ \modes args bi ->
      parallel_ [
        do let dir = getRGLBuildDir bi mode
@@ -115,8 +108,19 @@ rglCommands =
        return ()
   ]
   where
+    gfcp cs modes args bi = parallel_ [gfcp' bi mode args cs|mode<-modes]
+
+    gfcp' bi mode args cs = gfcn bi mode (unwords ss) (concat fss)
+      where (ss,fss) = unzip [(summary f,map f as)|c<-cs,let (f,as)=c mode args]
+
     summary f = f ("*","*")
 
+    l mode args = (lang,optml mode langsLang args)
+    s mode args = (symbol,optml mode langsAPI args)
+    c mode args = (compat,optl langsCompat args)
+    t mode args = (try,optml mode langsAPI args)
+    sc mode args = (symbolic,optml mode langsSymbolic args)
+
     optl = optml AllTenses
     optml mode ls args = getOptLangs (shrink ls) args
       where