diff -uNr R-2.5.0/src/nmath/standalone/Makefile.in R-2.5.0-patched/src/nmath/standalone/Makefile.in
--- R-2.5.0/src/nmath/standalone/Makefile.in	2007-03-26 18:42:08.000000000 +0200
+++ R-2.5.0-patched/src/nmath/standalone/Makefile.in	2007-04-29 14:50:55.000000000 +0200
@@ -67,7 +67,7 @@
 libRmath_la_LDFLAGS =
 
 CLEANFILES = Makedeps *.d *.o *.lo test $(SOURCES)
-DISTCLEANFILES = Makefile $(Rexeclibdir_LIBRARIES) $(Rexeclibdir_LTLIBRARIES)
+DISTCLEANFILES = Makefile libRmath.pc $(Rexeclibdir_LIBRARIES) $(Rexeclibdir_LTLIBRARIES)
 
 DEFS = -DHAVE_CONFIG_H -DMATHLIB_STANDALONE
 ALL_CPPFLAGS = $(R_XTRA_CPPFLAGS) -I$(srcdir)/.. $(CPPFLAGS) $(DEFS)
@@ -78,7 +78,7 @@
 @r_cc_lo_rules_frag@
 
 
-all: Makefile inc static shared
+all: Makefile inc static shared build-pc
 
 inc:
 	(cd ../../include; $(MAKE) Rmath.h)
@@ -100,6 +100,11 @@
 shared: Makefile ../../include/Rconfig.h Copy Makedeps
 	@$(MAKE) $(Rexeclibdir_LTLIBRARIES)
 
+build-pc:
+	@$(SED) -e "s:@libdir:$(libdir):" -e "s:@includedir:$(includedir):" \
+	  -e 's/@VERSION/$(VERSION)/' -e 's/@libm/$(LIBM)/' $(srcdir)/libRmath.pc.in \
+	  > "libRmath.pc"
+
 ../../include/Rconfig.h:
 	(cd $(@D); $(MAKE) $(@F))
 
@@ -163,9 +168,7 @@
 
 install-pc:
 	@$(MKINSTALLDIRS) "$(libdir)/pkgconfig"
-	@$(SED) -e "s:@libdir:$(libdir):" -e "s:@includedir:$(includedir):" \
-	  -e 's/@VERSION/$(VERSION)/' -e 's/@libm/$(LIBM)/' $(srcdir)/libRmath.pc.in \
-	  > "$(libdir)/pkgconfig/libRmath.pc"
+	@$(INSTALL_DATA) libRmath.pc "$(libdir)/pkgconfig/libRmath.pc"
 
 uninstall:
 	@rm -f $(includedir)/Rmath.h $(libdir)/$(libRmath_la) $(libdir)/libRmath.a "$(libdir)/pkgconfig/libRmath.pc"
diff -uNr R-2.5.0/src/scripts/Makefile.in R-2.5.0-patched/src/scripts/Makefile.in
--- R-2.5.0/src/scripts/Makefile.in	2007-03-26 18:42:09.000000000 +0200
+++ R-2.5.0-patched/src/scripts/Makefile.in	2007-04-29 14:50:14.000000000 +0200
@@ -23,17 +23,22 @@
 DISTFILES = Makefile.in Makefile.win $(SCRIPTS_S) $(SCRIPTS_B_IN) R.sh.in
 
 CLEANFILES =
-DISTCLEANFILES = Makefile R.fe R.sh $(SCRIPTS_B)
+DISTCLEANFILES = Makefile R.fe R.fe2 R.sh $(SCRIPTS_B)
 
 all: Makefile R
 
 Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
 	@cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@
 
-R: $(SCRIPTS_B) R.fe
+R: $(SCRIPTS_B) R.fe R.fe2
 	@$(MAKE) rhome=$(top_builddir) install-cmds
 	@$(INSTALL_SCRIPT) R.fe $(top_builddir)/bin/R
 
+R.fe2: 
+	@(d=`echo '$(rhome)' | sed 's,/,\\\/,g';`; \
+	  sed -e "s/\\(R_HOME_DIR=\\).*/\\1$${d}/;" -e "s+\\(R_SHARE_DIR=\\).*+\\1$(rsharedir)+;" -e  "s+\\(R_INCLUDE_DIR=\\).*+\\1$(rincludedir)+;" -e "s+\\(R_DOC_DIR=\\).*+\\1$(rdocdir)+;"\
+	  < R.fe > $@)
+
 ## <NOTE>
 ## Seems we need target rules for creating FOO from FOO.in: pattern
 ## rules ('%:%.in') are not portable, and some versions of Make do not
@@ -95,10 +100,8 @@
 
 install: installdirs install-cmds
 	@rm -f $(bindir)/R
-	@(d=`echo '$(rhome)' | sed 's,/,\\\/,g';`; \
-	  sed -e "s/\\(R_HOME_DIR=\\).*/\\1$${d}/;" -e "s+\\(R_SHARE_DIR=\\).*+\\1$(rsharedir)+;" -e  "s+\\(R_INCLUDE_DIR=\\).*+\\1$(rincludedir)+;" -e "s+\\(R_DOC_DIR=\\).*+\\1$(rdocdir)+;"\
-	  < R.fe > "$(Rexecbindir)/R")
-	@$(INSTALL_SCRIPT)  "$(Rexecbindir)/R" "$(bindir)/R"
+	@$(INSTALL_SCRIPT)  R.fe2 "$(Rexecbindir)/R"
+	@$(INSTALL_SCRIPT)  R.fe2 "$(bindir)/R"
 	@chmod 755 "$(bindir)/R" "$(Rexecbindir)/R"
 ## why of all the scriots does this alone chmod just one copy?
 installdirs:
diff -uNr R-2.5.0/src/unix/Makefile.in R-2.5.0-patched/src/unix/Makefile.in
--- R-2.5.0/src/unix/Makefile.in	2007-03-26 18:41:33.000000000 +0200
+++ R-2.5.0-patched/src/unix/Makefile.in	2007-04-29 14:51:55.000000000 +0200
@@ -26,7 +26,7 @@
 
 @WANT_R_SHLIB_TRUE@ALL_CFLAGS = $(ALL_CFLAGS_LO)
 
-all: Makefile Makedeps R
+all: Makefile Makedeps R 
 
 Makefile: $(srcdir)/Makefile.in \
   $(top_builddir)/config.status \
@@ -38,11 +38,23 @@
 	@cat $(DEPENDS) >> Makefile
 	@touch $@
 
-R: Makefile
+R: Makefile 
 	@$(MAKE) Makedeps
 @WANT_R_SHLIB_FALSE@	@$(MAKE) libunix.a
 @WANT_R_SHLIB_TRUE@	@$(MAKE) stamp-lo
+	@$(MAKE) rhome=$(abs_top_builddir) build-Rscript
 	@$(MAKE) rhome=$(abs_top_builddir) install-Rscript
+	@$(MAKE) build-Rscript
+	@$(MAKE) build-pc
+
+build-pc:
+	@$(SED) -e "s:@rhome:$(rhome):" -e "s:@rincludedir:$(rincludedir):" \
+	  -e 's/@VERSION/$(VERSION)/' $(srcdir)/libR.pc.in \
+	  > "libR.pc"
+
+build-Rscript:
+	$(CC) $(ALL_CPPFLAGS) $(ALL_CFLAGS) -DR_HOME='"$(rhome)"' -o Rscript \
+	  $(srcdir)/Rscript.c
 
 ## is this portable?
 ../include/Rversion.h:
@@ -60,22 +72,19 @@
 clean:
 	@-rm -rf .libs _libs
 	@-rm -f Makedeps *.d *.o *.a *.lo *.la stamp-lo
+	@-rm -f Rscript libR.pc
 distclean: clean
 	@-rm -f Makefile
 maintainer-clean: distclean
 
-## we need to build at install time to capture the correct 'rhome'
+## install previously built Rscript
 install-Rscript:
-	$(CC) $(ALL_CPPFLAGS) $(ALL_CFLAGS) -DR_HOME='"$(rhome)"' -o Rscript \
-	  $(srcdir)/Rscript.c
 	@$(MKINSTALLDIRS) "$(Rexecbindir)"
 	@$(INSTALL_PROGRAM) Rscript "$(Rexecbindir)/Rscript"
-## substitute at install time to allow 'prefix' to be overridden
+## install previously built libR.pc
 install-pc:
 	@$(MKINSTALLDIRS) "$(libdir)/pkgconfig"
-	@$(SED) -e "s:@rhome:$(rhome):" -e "s:@rincludedir:$(rincludedir):" \
-	  -e 's/@VERSION/$(VERSION)/' $(srcdir)/libR.pc.in \
-	  > "$(libdir)/pkgconfig/libR.pc"
+	@$(INSTALL_DATA) libR.pc "$(libdir)/pkgconfig/libR.pc"
 install: install-Rscript @WANT_R_SHLIB_TRUE@ install-pc
 	@$(MKINSTALLDIRS) "$(bindir)"
 	@$(INSTALL_PROGRAM) Rscript "$(bindir)/Rscript"