Updates to windows ci build

Author: zayenz

.github/workflows/build.yml

@@ -108,6 +108,7 @@ jobs:
         -G "Visual Studio 17 2022" -A x64
         -DGECODE_ENABLE_QT=OFF
         -DGECODE_ENABLE_GIST=OFF
+        -DGECODE_ENABLE_MPFR=OFF
         -DGECODE_BUILD_SHARED=${{ matrix.build_shared }}
         -DGECODE_BUILD_STATIC=${{ matrix.build_static }}
 
@@ -150,7 +151,7 @@ jobs:
 
     - name: Configure
       shell: msys2 {0}
-      run: ./configure --disable-qt --disable-gist
+      run: CC=gcc CXX=g++ ./configure --with-host-os=Windows --disable-qt --disable-gist --disable-mpfr
 
     - name: Build
       shell: msys2 {0}