Update khaiii install script

Author: bgnkim

.travis.yml

@@ -10,12 +10,13 @@ matrix:
         - choco install nodejs-lts -y
         - choco install yarn -y
         - export PATH=$(cmd.exe //c "refreshenv > nul & C:\Progra~1\Git\bin\bash -c 'echo \$PATH' ")
-        - export JAVA_HOME=$(cmd.exe //c "refreshenv > nul & C:\Progra~1\Git\bin\bash -c 'echo \$JAVA_HOME' ")
         - java --version
         - node -v
+      env:
+        - JAVA_HOME="/c/Progra~1/OpenJDK/jdk-11.0.11_9"
     - name: "OSX11.3 with OpenJDK 11 (LTS)"
       os: osx
-      osx_image: xcode12.5
+      osx_image: xcode12u
       language: shell
       jdk: openjdk11
       before_install:

scripts/khaiii_install.sh

@@ -24,22 +24,25 @@ fi
 KHAIII_LATEST=$(git tag -l | tail -n 1)
 git checkout -f tags/$KHAIII_LATEST
 
-### Python 3 Pypi install
-python3 -m pip install --user -r requirements.txt
-echo "\033[34mPython3.6 installation finished\033[0m"
-
-### Note original python version for checking.
-PYVER=$(python3.6 --version)
-echo $PYVER
-
 ### Make build files
 if [ ! -d "build" ]
 then
     mkdir build
-    cd build
-    cmake ..
+fi
+
+# OS Release check (khaiii/khaiii#103)
+if [ $TRAVIS_OS_NAME == 'linux' ]
+then
+    RELEASE=`lsb_release -cs`
+else
+    RELEASE=none
+fi
+
+cd build
+if [ $RELEASE == 'focal' ]
+then
+    cmake -E env CXXFLAGS="-w" cmake ..
 else
-    cd build
     cmake ..
 fi