Check if the toolchain is present before compiling

Author: toch

Rakefile

@@ -22,6 +22,11 @@ load "#{mruby_root}/Rakefile"
 
 desc "compile all the binaries"
 task :compile => [:all] do
+  load "#{mruby_root}/test/mrbtest.rake"
+  MRuby.each_target do |target|
+    `#{target.cc.command} --version`
+    abort("Command #{target.cc.command} for #{target.name} is missing.") unless $?.success?
+  end
   %W(#{mruby_root}/build/x86_64-pc-linux-gnu/bin/#{APP_NAME} #{mruby_root}/build/i686-pc-linux-gnu/#{APP_NAME}").each do |bin|
     sh "strip --strip-unneeded #{bin}" if File.exist?(bin)
   end

mrblib/setup.rb

@@ -319,6 +319,11 @@ def is_in_a_docker?
 
 desc "compile binary"
 task :compile => [:all] do
+  load "\#{mruby_root}/test/mrbtest.rake"
+  MRuby.each_target do |target|
+    `\#{target.cc.command} --version`
+    abort("Command \#{target.cc.command} for \#{target.name} is missing.") unless $?.success?
+  end
   %W(\#{mruby_root}/build/x86_64-pc-linux-gnu/bin/\#{APP_NAME} \#{mruby_root}/build/i686-pc-linux-gnu/\#{APP_NAME}").each do |bin|
     sh "strip --strip-unneeded \#{bin}" if File.exist?(bin)
   end