diff -Nur gcc-4.5.4.orig/gcc/Makefile.in gcc-4.5.4/gcc/Makefile.in
--- gcc-4.5.4.orig/gcc/Makefile.in	2010-09-02 15:05:30.000000000 +0200
+++ gcc-4.5.4/gcc/Makefile.in	2020-02-14 11:21:19.738530236 +0100
@@ -1726,10 +1726,10 @@
 quickstrap: all
 	cd $(toplevel_builddir) && $(MAKE) all-target-libgcc
 
-all.internal: start.encap rest.encap doc
+all.internal: start.encap rest.encap
 # This is what to compile if making a cross-compiler.
 all.cross: native gcc-cross$(exeext) cpp$(exeext) specs \
-	libgcc-support lang.all.cross doc @GENINSRC@ srcextra
+	libgcc-support lang.all.cross @GENINSRC@ srcextra
 # This is what must be made before installing GCC and converting libraries.
 start.encap: native xgcc$(exeext) cpp$(exeext) specs \
 	libgcc-support lang.start.encap @GENINSRC@ srcextra
@@ -3968,39 +3968,23 @@
 #
 # Remake the info files.
 
-doc: $(BUILD_INFO) $(GENERATED_MANPAGES) gccbug
+doc:
 
-INFOFILES = doc/cpp.info doc/gcc.info doc/gccint.info \
-            doc/gccinstall.info doc/cppinternals.info
+INFOFILES = 
 
-info: $(INFOFILES) lang.info @GENINSRC@ srcinfo lang.srcinfo
+info:
 
-srcinfo: $(INFOFILES)
-	-cp -p $^ $(srcdir)/doc
+srcinfo:
+
+TEXI_CPP_FILES =
 
-TEXI_CPP_FILES = cpp.texi fdl.texi cppenv.texi cppopts.texi		\
-	 gcc-common.texi gcc-vers.texi
+TEXI_GCC_FILES =
 
-TEXI_GCC_FILES = gcc.texi gcc-common.texi gcc-vers.texi frontends.texi	\
-	 standards.texi invoke.texi extend.texi md.texi objc.texi	\
-	 gcov.texi trouble.texi bugreport.texi service.texi		\
-	 contribute.texi compat.texi funding.texi gnu.texi gpl_v3.texi	\
-	 fdl.texi contrib.texi cppenv.texi cppopts.texi			\
-	 implement-c.texi implement-cxx.texi arm-neon-intrinsics.texi
-
-TEXI_GCCINT_FILES = gccint.texi gcc-common.texi gcc-vers.texi		\
-	 contribute.texi makefile.texi configterms.texi options.texi	\
-	 portability.texi interface.texi passes.texi	\
-	 rtl.texi md.texi tm.texi hostconfig.texi fragments.texi	\
-	 configfiles.texi collect2.texi headerdirs.texi funding.texi	\
-	 gnu.texi gpl_v3.texi fdl.texi contrib.texi languages.texi	\
-	 sourcebuild.texi gty.texi libgcc.texi cfg.texi tree-ssa.texi	\
-	 loop.texi generic.texi gimple.texi plugins.texi
+TEXI_GCCINT_FILES = 
 
-TEXI_GCCINSTALL_FILES = install.texi install-old.texi fdl.texi		\
-	 gcc-common.texi gcc-vers.texi
+TEXI_GCCINSTALL_FILES = 
 
-TEXI_CPPINT_FILES = cppinternals.texi gcc-common.texi gcc-vers.texi
+TEXI_CPPINT_FILES =
 
 # gcc-vers.texi is generated from the version files.
 gcc-vers.texi: $(BASEVER) $(DEVPHASE)
@@ -4107,7 +4091,7 @@
 
 generated-manpages: man
 
-man: $(MANFILES) lang.man @GENINSRC@ srcman lang.srcman
+man:
 
 srcman: $(MANFILES)
 	-cp -p $^ $(srcdir)/doc