根据GHC 7.10.1和cabal 1.23进行分析的程序是什么？

Question

在GHC 7.10.1和cabal 1.23下建议的分析程序是什么？来自GHC和cabal-install的与性能分析相关的错误和警告消息非常不一致.

1. 尝试使用性能分析运行可执行文件,然后告诉您:

   $ prediction-interactive +RTS -p
   
   prediction-interactive: the flag -p requires the program to be built with -prof
   

2. 放入-prof你的cabal文件,你会被告知:

   $ cabal build
   
   Warning: 'ghc-options: -prof' is not necessary and will lead to problems when
   used on a library. Use the configure flag --enable-library-profiling and/or
   --enable-executable-profiling.
   

3. 遵循该建议(并从cabal文件中删除-prof),并告诉您:

   $ cabal configure --enable-executable-profiling
   
   Resolving dependencies...
   Configuring creatur-wains-prediction-1.0...
   Warning: The flag --enable-executable-profiling is deprecated. Please use
   --enable-profiling instead.
   

4. 遵循这个建议,你被告知:

   $ cabal configure --enable-profiling
   
   Resolving dependencies...
   Configuring creatur-wains-prediction-1.0...
   
   $ cabal build
   
   . . .
   Installing executable(s) in
   /home/eamybut/nosync/sandboxes/prediction-wains/bin
   Installed creatur-wains-prediction-1.0
   
   $ prediction-interactive +RTS -p
   
   prediction-interactive: the flag -p requires the program to be built with -prof
   

捂脸!

编辑:在步骤4中添加了cabal构建.