Hello, In the file lib-src/makefile.w32-in, at line 492? there is a trailing backslash at the end of the instruction: 488 $(BLD)/sorted-doc.$(O) : \ 489 $(SRC)/sorted-doc.c \ 490 $(EMACS_ROOT)/src/s/ms-w32.h \ 491 $(EMACS_ROOT)/src/m/intel386.h \ 492 $(EMACS_ROOT)/src/config.h \ 493 494 $(BLD)/tcp.$(O) : \ It generates for me an error at compilation ! Thanks Guillaume Conjat