Index: doc/Makefile.in
--- doc/Makefile.in.orig
+++ doc/Makefile.in
@@ -42,7 +42,7 @@ MKDIR_P		= @MKDIR_P@
 RM_F		= rm -f
 RM_RF		= rm -rf
 CP_F		= cp -f
-CP_UF		= cp -uf
+CP_UF		= cp -f
 
 # Optional tools
 XZ		= @XZ@
@@ -62,7 +62,7 @@ SRCS		= nasmdoc.src
 # All input files (except auto-dependencies)
 ALLSRCS		= $(SRCS) $(GENSRC)
 
-OUT		= html nasmdoc.txt nasmdoc.pdf $(XZFILES)
+OUT		= html nasmdoc.txt # nasmdoc.pdf $(XZFILES)
 XZOUT           = nasmdoc.pdf.xz
 
 # Use "make install PDFZ=.xz" to install pdf.xz
@@ -158,7 +158,11 @@ install_pdf: nasmdoc.pdf$(PDFZ)
 	$(MKDIR_P) $(DESTDIR)$(pdfdir)
 	$(INSTALL_DATA) nasmdoc.pdf$(PDFZ) $(DESTDIR)$(pdfdir)
 
-install: install_html install_pdf
+install_doc: internal.doc
+	$(MKDIR_P) $(DESTDIR)$(docdir)
+	$(INSTALL_DATA) internal.doc $(DESTDIR)$(docdir)
+
+install: install_html install_doc
 
 #
 # Dummy rules that changes make behavior
