Enable backtrace in MinGW release (CleverRaven#51997)

Author: BrettDong

.github/workflows/release.yml

@@ -176,6 +176,9 @@ jobs:
           sudo add-apt-repository "deb [arch=amd64] https://pkg.mxe.cc/repos/apt `lsb_release -sc` main"
           sudo apt update
           sudo apt install mxe-{i686,x86-64}-w64-mingw32.static-{sdl2,sdl2-ttf,sdl2-image,sdl2-mixer,gettext}
+          curl -L -o libbacktrace-${{ matrix.mxe }}-w64-mingw32.tar.gz https://github.com/Qrox/libbacktrace/releases/download/2020-01-03/libbacktrace-${{ matrix.mxe }}-w64-mingw32.tar.gz
+          shasum -a 256 -c ./build-scripts/libbacktrace-${{ matrix.mxe }}-w64-mingw32-sha256
+          sudo tar -xzf libbacktrace-${{ matrix.mxe }}-w64-mingw32.tar.gz --exclude=LICENSE -C /usr/lib/mxe/usr/${{ matrix.mxe }}-w64-mingw32.static
       - name: Install dependencies (Linux)
         if: runner.os == 'Linux' && matrix.mxe == 'none' && matrix.android == 'none' 
         run: |
@@ -211,7 +214,7 @@ jobs:
         env:
           PLATFORM: /usr/lib/mxe/usr/bin/${{ matrix.mxe }}-w64-mingw32.static-
         run: |
-          make -j$((`nproc`+0)) CROSS="${PLATFORM}" TILES=1 SOUND=1 RELEASE=1 LOCALIZE=1 LANGUAGES=all BACKTRACE=0 PCH=0 bindist
+          make -j$((`nproc`+0)) CROSS="${PLATFORM}" TILES=1 SOUND=1 RELEASE=1 LOCALIZE=1 LANGUAGES=all BACKTRACE=1 PCH=0 bindist
           mv cataclysmdda-0.F.zip cdda-${{ matrix.artifact }}-${{ needs.release.outputs.timestamp }}.zip
       - name: Build CDDA (windows msvc)
         if: runner.os == 'Windows'

build-scripts/libbacktrace-x86_64-w64-mingw32-sha256

@@ -0,0 +1 @@
+f658456bb32db1d4fe694eee02459f63b7044ab71009730c3828374a35a8f750 *libbacktrace-x86_64-w64-mingw32.tar.gz