Hello, The `emacs-24' branch cannot be built on Windows (at least in the MSYS2 environment), because of the following error: Saving file > c:/Users/Haroogan/Projects/GitHub/MINGW-packages/mingw-w64-emacs/src/emacs/lisp/loaddefs.el... > Wrote > c:/Users/Haroogan/Projects/GitHub/MINGW-packages/mingw-w64-emacs/src/emacs/lisp/loaddefs.el > Saving file > c:/Users/Haroogan/Projects/GitHub/MINGW-packages/mingw-w64-emacs/src/emacs/lisp/org/org-loaddefs.el... > Wrote > c:/Users/Haroogan/Projects/GitHub/MINGW-packages/mingw-w64-emacs/src/emacs/lisp/org/org-loaddefs.el > Saving file > c:/Users/Haroogan/Projects/GitHub/MINGW-packages/mingw-w64-emacs/src/emacs/lisp/eshell/esh-groups.el... > Wrote > c:/Users/Haroogan/Projects/GitHub/MINGW-packages/mingw-w64-emacs/src/emacs/lisp/eshell/esh-groups.el > Saving file > c:/Users/Haroogan/Projects/GitHub/MINGW-packages/mingw-w64-emacs/src/emacs/lisp/emacs-lisp/cl-loaddefs.el... > Wrote > c:/Users/Haroogan/Projects/GitHub/MINGW-packages/mingw-w64-emacs/src/emacs/lisp/emacs-lisp/cl-loaddefs.el > Saving file > c:/Users/Haroogan/Projects/GitHub/MINGW-packages/mingw-w64-emacs/src/emacs/lisp/cedet/srecode/loaddefs.el... > Wrote > c:/Users/Haroogan/Projects/GitHub/MINGW-packages/mingw-w64-emacs/src/emacs/lisp/cedet/srecode/loaddefs.el > Saving file > c:/Users/Haroogan/Projects/GitHub/MINGW-packages/mingw-w64-emacs/src/emacs/lisp/cedet/semantic/loaddefs.el... > Wrote > c:/Users/Haroogan/Projects/GitHub/MINGW-packages/mingw-w64-emacs/src/emacs/lisp/cedet/semantic/loaddefs.el > Saving file > c:/Users/Haroogan/Projects/GitHub/MINGW-packages/mingw-w64-emacs/src/emacs/lisp/cedet/ede/loaddefs.el... > Wrote > c:/Users/Haroogan/Projects/GitHub/MINGW-packages/mingw-w64-emacs/src/emacs/lisp/cedet/ede/loaddefs.el > Saving file > c:/Users/Haroogan/Projects/GitHub/MINGW-packages/mingw-w64-emacs/src/emacs/lisp/calc/calc-loaddefs.el... > Wrote > c:/Users/Haroogan/Projects/GitHub/MINGW-packages/mingw-w64-emacs/src/emacs/lisp/calc/calc-loaddefs.el > (No changes need to be saved) > make[2]: Leaving directory > '/c/Users/Haroogan/Projects/GitHub/MINGW-packages/mingw-w64-emacs/src/.build/x86_64-w64-mingw32/lisp' > make[1]: Leaving directory > '/c/Users/Haroogan/Projects/GitHub/MINGW-packages/mingw-w64-emacs/src/.build/x86_64-w64-mingw32/src' > Makefile:382: recipe for target 'src' failed > make: *** [src] Error 2 This error has been there for several months by now. There was a discussion on it in September [1], and it seems like nothing has changed. Please, note that the `master' branch can be built just fine. Regards, Alexander [1]: https://lists.gnu.org/archive/html/emacs-devel/2014-09/msg00387.html