3 files changed, 10 insertions, 8 deletions

diff --git a/src/luarocks/build.lua b/src/luarocks/build.lua
index 0e72ca85..5722deca 100644
--- a/src/luarocks/build.lua
+++ b/src/luarocks/build.lua
@@ -177,6 +177,14 @@ function build.build_rockspec(rockspec_file, need_to_fetch, minimal_mode, deps_m
       return nil, "Rockspec error: build type not specified"
    end
 
+   if not build_only_deps then
+      local ok
+      ok, err, errcode = deps.check_external_deps(rockspec, "build")
+      if err then
+         return nil, err, errcode
+      end
+   end
+
    if deps_mode == "none" then
       util.printerr("Warning: skipping dependency checks.")
    else
@@ -193,12 +201,6 @@ function build.build_rockspec(rockspec_file, need_to_fetch, minimal_mode, deps_m
       return name, version
    end   
 
-   local ok
-   ok, err, errcode = deps.check_external_deps(rockspec, "build")
-   if err then
-      return nil, err, errcode
-   end
-
    if repos.is_installed(name, version) then
       repos.delete_version(name, version)
    end
diff --git a/src/luarocks/download.lua b/src/luarocks/download.lua
index 2e434b03..18573ae4 100644
--- a/src/luarocks/download.lua
+++ b/src/luarocks/download.lua
@@ -88,7 +88,7 @@ end
 function download.command(flags, name, version)
    assert(type(version) == "string" or not version)
    if type(name) ~= "string" and not flags["all"] then
-      return nil, "Argument missing, see help."
+      return nil, "Argument missing. "..util.see_help("download")
    end
    if not name then name, version = "", "" end
 
diff --git a/src/luarocks/remove.lua b/src/luarocks/remove.lua
index 38851d36..d72fabaf 100644
--- a/src/luarocks/remove.lua
+++ b/src/luarocks/remove.lua
@@ -139,7 +139,7 @@ end
 -- successful, nil and an error message otherwise. exitcode is optionally returned.
 function remove.command(flags, name, version)
    if type(name) ~= "string" then
-      return nil, "Argument missing, see help."
+      return nil, "Argument missing. "..util.see_help("remove")
    end
    
    local deps_mode = flags["deps-mode"] or cfg.deps_mode