Fixed: DOS COMMAND(0) was giving '/' for the path separator instead of '\'
All platforms: return the path with a slash at the end - prevents accidentally giving relative paths when returning root paths, e.g. "C:\" or "/"
EXEPATH (all platforms): ensure a slash follows root paths to prevent accidentally returning relative paths (e.g. "/", "C:\")
(This undoes the last patch, which always kept the slash.  The result is now consistent with curdir(), which returns the trailing slash only where necessary on drive roots)
FB-dos: Add script for cross-compiling various libs from Linux for DJGPP
Update Mini-XML download URL
Fix previous commit: win32 doesn't seem to have an isalpha() function
FB-musl: Add SQLite
Merge remote-tracking branch 'origin/master'
FB-win32: Fix DevIL build
FB-win32: Add missing tinyxml2 patch
FB-linuxmusl/win32: Build GRX with libtiff support
FB-win32: Use CRLF EOLs for PCRE, as on DOS
FB-linuxmusl: Re-enable ogg/vorbis/theora builds, as on Win32
All lib build scripts: Copy license files alongside the libs