It is not clear that static linking is superior in our case
Shared linking could even reduce package size (only one copy of libstdc++ shipped)
21:04 < jon_y> libtool prevents static linking if you are working with dlls, it is by
design
# Compiler shared DLLs
# For win64 only, Debian mingw32 compilers are built with --disable-shared
if HAVE_WIN64
-# if gcc_s_sjlj/stdc++ DLLs exist, we very likely linked our C++ modules to them
-# FIXME : tell libtool to not use -nostdlib
-# and add -static-libgcc and -static-libstdc++ to LDFLAGS
+# if gcc_s_sjlj/stdc++ DLLs exist, our C++ modules were linked to them
gcc_lib_dir=`x86_64-w64-mingw32-gcc -v /dev/null 2>&1 | grep ^LIBRARY_PATH|cut -d= -f2|cut -d: -f1` ; \
cp "$${gcc_lib_dir}/libstdc++-6.dll" "$${gcc_lib_dir}/libgcc_s_sjlj-1.dll" "$(win32_destdir)/" ; true
endif