From 86223b6eca954f9c189b986a24d4ba0252af7b23 Mon Sep 17 00:00:00 2001
From: KOBAYASHI Shuji <shuujii@gmail.com>
Date: Wed, 20 May 2020 13:25:28 +0900
Subject: Retry `rake -m` on AppVeyor [skip travis]

The following error occurs when using `rake -m` on AppVeyor:

  ```
  fatal error C1041: cannot open program database 'C:\projects\mruby\vc140.pdb'; if multiple CL.EXE write to the same .PDB file, please use /FS
  ```

Therefore, the issue is solved by not creating the PDB file. It is expected
to be somewhat faster by not generating debugging information (I don't think
debugging information is necessary for normal CI).
---
 appveyor.yml       | 1 +
 appveyor_config.rb | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/appveyor.yml b/appveyor.yml
index bf4fb3f17..7a086c316 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -47,4 +47,5 @@ install:
 build_script:
   - set YACC=.\win_flex_bison\win_bison.exe
   - set MRUBY_CONFIG=appveyor_config.rb
+  - rake -m
   - rake -E $stdout.sync=true test
diff --git a/appveyor_config.rb b/appveyor_config.rb
index fd14f4a4c..5957fda52 100644
--- a/appveyor_config.rb
+++ b/appveyor_config.rb
@@ -1,3 +1,8 @@
+def setup_option(conf)
+  conf.compilers.each{|c| c.flags[0].delete("/Zi")}
+  conf.linker.flags << "/DEBUG:NONE"
+end
+
 MRuby::Build.new('full-debug') do |conf|
   toolchain :visualcpp
   enable_debug
@@ -5,6 +10,7 @@ MRuby::Build.new('full-debug') do |conf|
   # include all core GEMs
   conf.gembox 'full-core'
   conf.cc.defines += %w(MRB_GC_STRESS MRB_METHOD_CACHE MRB_ENABLE_DEBUG_HOOK)
+  setup_option(conf)
 
   conf.enable_test
 end
@@ -17,6 +23,7 @@ MRuby::Build.new do |conf|
   conf.compilers.each do |c|
     c.defines += %w(MRB_GC_FIXED_ARENA)
   end
+  setup_option(conf)
   conf.enable_bintest
   conf.enable_test
 end
@@ -28,6 +35,7 @@ MRuby::Build.new('cxx_abi') do |conf|
   conf.compilers.each do |c|
     c.defines += %w(MRB_GC_FIXED_ARENA)
   end
+  setup_option(conf)
   conf.enable_bintest
   conf.enable_test
 
-- 
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