add helpful build scripts

opt/build-win32-cross.sh

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+#!/bin/bash
+# 64-bit Windows cross build script
+
+version_major="$(grep "APP_VER_MAJOR " pc/shared/Organization.h | cut -f3 -d' ')"
+version_minor="$(grep "APP_VER_MINOR " pc/shared/Organization.h | cut -f3 -d' ')"
+version_micro="$(grep "APP_VER_MICRO " pc/shared/Organization.h | cut -f3 -d' ')"
+
+version="${version_major}.${version_minor}.${version_micro}"
+
+echo "v${version}"
+
+make clean
+prefix=/usr/i686-w64-mingw32/usr CROSS_COMPILE=i686-w64-mingw32- make clean
+prefix=/usr/i686-w64-mingw32/usr CROSS_COMPILE=i686-w64-mingw32- make
+cp /usr/i686-w64-mingw32/usr/{bin/SDL2.dll,lib/libboost_filesystem.dll} \
+  /usr/lib/gcc/i686-w64-mingw32/9.3.0/{libgcc_s_sjlj-1.dll,libstdc++-6.dll} pc/bin
+pushd pc
+cp -r bin SNES\ Tracker\ v${version}-Win32
+cd SNES\ Tracker\ v${version}-Win32
+rm std.exe st.exe
+popd
+
+echo "v${version}"
+echo "Remember to put in a README File bro!"

opt/build-win64-cross.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+# 64-bit Windows cross build script
+
+version_major="$(grep "APP_VER_MAJOR " pc/shared/Organization.h | cut -f3 -d' ')"
+version_minor="$(grep "APP_VER_MINOR " pc/shared/Organization.h | cut -f3 -d' ')"
+version_micro="$(grep "APP_VER_MICRO " pc/shared/Organization.h | cut -f3 -d' ')"
+
+version="${version_major}.${version_minor}.${version_micro}"
+
+echo "v${version}"
+
+make clean
+prefix=/usr/x86_64-w64-mingw32/usr CROSS_COMPILE=x86_64-w64-mingw32- make clean
+prefix=/usr/x86_64-w64-mingw32/usr CROSS_COMPILE=x86_64-w64-mingw32- make
+cp /usr/x86_64-w64-mingw32/usr/{bin/SDL2.dll,lib/libboost_filesystem.dll} \
+  /usr/lib/gcc/x86_64-w64-mingw32/9.2.0/{libgcc_s_seh-1.dll,libstdc++-6.dll} pc/bin
+pushd pc
+cp -r bin SNES\ Tracker\ v${version}-Win64
+cd SNES\ Tracker\ v${version}-Win64
+rm std.exe st.exe
+popd
+
+echo "v${version}"
+echo "Remember to put in a README File bro!"