Remove `bison` installation from GitHub Actions.

1 files changed, 7 insertions, 10 deletions

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 3907baeff..da213859c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -8,7 +8,7 @@ jobs:
     steps:
     - uses: actions/checkout@v1
     - name: apt
-      run: sudo apt install ruby gperf bison
+      run: sudo apt install ruby gperf
     - name: build and test
       run: rake -m -j4 all test
       env:
@@ -19,7 +19,7 @@ jobs:
     steps:
     - uses: actions/checkout@v1
     - name: apt
-      run: sudo apt install ruby gperf bison gcc g++
+      run: sudo apt install ruby gperf gcc g++
     - name: build and test
       run: rake -m -j4 all test
       env:
@@ -32,7 +32,7 @@ jobs:
     steps:
     - uses: actions/checkout@v1
     - name: apt
-      run: sudo apt install ruby gperf bison
+      run: sudo apt install ruby gperf
     - name: build and test
       run: rake -m -j4 all test
       env:
@@ -45,24 +45,22 @@ jobs:
     steps:
     - uses: actions/checkout@v1
     - name: brew
-      run: brew install ruby gperf bison
+      run: brew install ruby gperf
     - name: build and test
       run: rake -m -j4 all test
       env:
         MRUBY_CONFIG: travis_config.rb
-        YACC: /usr/local/opt/bison/bin/bison
 
   Windows-MinGW:
     runs-on: windows-latest
     steps:
     - uses: actions/checkout@v1
     - name: chocolatey
-      run: choco install -y ruby winflexbison gperf
+      run: choco install -y ruby gperf
     - name: build and test
       run: rake -E '$stdout.sync=true' -j4 test
       env:
         MRUBY_CONFIG: travis_config.rb
-        YACC: win_bison
         CFLAGS: -g -O1 -Wall -Wundef
 
   Windows-Cygwin:
@@ -80,7 +78,7 @@ jobs:
       run: choco install -y cygwin
     - name: Install cygwin packages
       shell: cmd
-      run: C:\tools\cygwin\cygwinsetup.exe -qgnNdO -R C:/tools/cygwin -l C:/tools/cygwin/package -s http://mirrors.kernel.org/sourceware/cygwin/ -P gcc-core,gcc-g++,bison,make,gperf,ruby
+      run: C:\tools\cygwin\cygwinsetup.exe -qgnNdO -R C:/tools/cygwin -l C:/tools/cygwin/package -s http://mirrors.kernel.org/sourceware/cygwin/ -P gcc-core,gcc-g++,make,gperf,ruby
     - name: Set ENV
       run: |
         echo '::set-env name=PATH::C:\tools\cygwin\bin;C:\tools\cygwin\usr\bin'
@@ -95,7 +93,7 @@ jobs:
     steps:
     - uses: actions/checkout@v1
     - name: chocolatey
-      run: choco install -y ruby winflexbison gperf
+      run: choco install -y ruby gperf
     - name: build and test
       shell: cmd
       run: |
@@ -103,7 +101,6 @@ jobs:
         rake -E "STDOUT.sync=true" -m -j4 -v test
       env:
         MRUBY_CONFIG: appveyor_config.rb
-        YACC: win_bison
         # TODO(take-cheeze): Re-enable /O2
         CFLAGS: "/c /nologo /W3 /we4013 /Zi /MD /D_CRT_SECURE_NO_WARNINGS"
         CXXFLAGS: "/c /nologo /W3 /Zi /MD /EHs /D_CRT_SECURE_NO_WARNINGS"