unified build scheme: adjust some scripts

util/mkdef.pl and Makefile.shared needs to know about the source and
the build directories.

Additionally, Makefile.shared needs to know how to build shared
libraries in a directory other than the current one.
Reviewed-by: NBen Laurie <ben@openssl.org>

Makefile.shared

@@ -31,6 +31,12 @@ LIBNAME=
 #APPNAME=foo
 APPNAME=
 
+# DSTDIR is the directory where the built file should end up in.
+DSTDIR=.
+
+# SRCDIR is the top directory of the source tree.
+SRCDIR=.
+
 # OBJECTS contains all the object files to link together into the application.
 # This must contain at least one object file.
 #OBJECTS=foo.o
@@ -109,11 +115,11 @@ LINK_SO=	\
     LIBPATH=`echo $$LIBPATH | sed -e 's/ /:/g'`; \
     echo LD_LIBRARY_PATH=$$LIBPATH:$$LD_LIBRARY_PATH \
          $${SHAREDCMD} $${SHAREDFLAGS} \
-	     -o $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX \
+	     -o $(DSTDIR)/$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX \
 	     $$ALLSYMSFLAGS $$SHOBJECTS $$NOALLSYMSFLAGS $$LIBDEPS; \
     LD_LIBRARY_PATH=$$LIBPATH:$$LD_LIBRARY_PATH \
     $${SHAREDCMD} $${SHAREDFLAGS} \
-	-o $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX \
+	-o $(DSTDIR)/$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX \
 	$$ALLSYMSFLAGS $$SHOBJECTS $$NOALLSYMSFLAGS $$LIBDEPS \
   ) && $(SYMLINK_SO)
 
@@ -122,30 +128,30 @@ SYMLINK_SO=	\
 		prev=$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX; \
 		if [ -n "$$SHLIB_COMPAT" ]; then \
 			for x in $$SHLIB_COMPAT; do \
-				( $(SET_X); rm -f $$SHLIB$$x$$SHLIB_SUFFIX; \
-				  ln -s $$prev $$SHLIB$$x$$SHLIB_SUFFIX ); \
+				( $(SET_X); rm -f $(DSTDIR)/$$SHLIB$$x$$SHLIB_SUFFIX; \
+				  ln -s $$prev $(DSTDIR)/$$SHLIB$$x$$SHLIB_SUFFIX ); \
 				prev=$$SHLIB$$x$$SHLIB_SUFFIX; \
 			done; \
 		fi; \
 		if [ -n "$$SHLIB_SOVER" ]; then \
-			( $(SET_X); rm -f $$SHLIB$$SHLIB_SUFFIX; \
-			  ln -s $$prev $$SHLIB$$SHLIB_SUFFIX ); \
+			( $(SET_X); rm -f $(DSTDIR)/$$SHLIB$$SHLIB_SUFFIX; \
+			  ln -s $$prev $(DSTDIR)/$$SHLIB$$SHLIB_SUFFIX ); \
 		fi; \
 	fi
 
-LINK_SO_A=	SHOBJECTS="lib$(LIBNAME).a $(LIBEXTRAS)"; $(LINK_SO)
+LINK_SO_A=	SHOBJECTS="$(DSTDIR)/lib$(LIBNAME).a $(LIBEXTRAS)"; $(LINK_SO)
 LINK_SO_O=	SHOBJECTS="$(LIBEXTRAS)"; $(LINK_SO)
 
 LINK_SO_A_VIA_O=	\
-  SHOBJECTS=lib$(LIBNAME).o; \
+  SHOBJECTS=$(DSTDIR)/lib$(LIBNAME).o; \
   ALL=$$ALLSYMSFLAGS; ALLSYMSFLAGS=; NOALLSYMSFLAGS=; \
-  ( echo ld $(LDFLAGS) -r -o lib$(LIBNAME).o $$ALL lib$(LIBNAME).a $(LIBEXTRAS); \
-    ld $(LDFLAGS) -r -o lib$(LIBNAME).o $$ALL lib$(LIBNAME).a $(LIBEXTRAS) ); \
-  $(LINK_SO) && ( echo rm -f lib$(LIBNAME).o; rm -f lib$(LIBNAME).o )
+  ( echo ld $(LDFLAGS) -r -o $$SHOBJECTS.o $$ALL lib$(LIBNAME).a $(LIBEXTRAS); \
+    ld $(LDFLAGS) -r -o $$SHOBJECTS.o $$ALL $(DSTDIR)/lib$(LIBNAME).a $(LIBEXTRAS) ); \
+  $(LINK_SO) && ( echo rm -f $$SHOBJECTS; rm -f $$SHOBJECTS )
 
 LINK_SO_A_UNPACKED=	\
   UNPACKDIR=link_tmp.$$$$; rm -rf $$UNPACKDIR; mkdir $$UNPACKDIR; \
-  (cd $$UNPACKDIR; ar x ../lib$(LIBNAME).a) && \
+  (cd $$UNPACKDIR; ar x ../$(DSTDIR)/lib$(LIBNAME).a) && \
   ([ -z "$(LIBEXTRAS)" ] || cp $(LIBEXTRAS) $$UNPACKDIR) && \
   SHOBJECTS=$$UNPACKDIR/*.o; \
   $(LINK_SO) && rm -rf $$UNPACKDIR
@@ -178,7 +184,7 @@ link_app.gnu:
 
 link_a.linux-shared:
 	@if [ $(LIBNAME) != "crypto" -a $(LIBNAME) != "ssl" ]; then $(DO_GNU_SO); else \
-	$(PERL) util/mkdef.pl $(LIBNAME) linux >$(LIBNAME).map; \
+	$(PERL) $(SRCDIR)/util/mkdef.pl $(LIBNAME) linux >$(LIBNAME).map; \
 	$(CALC_VERSIONS); \
 	SHLIB=lib$(LIBNAME).so; \
 	SHLIB_SUFFIX=; \
@@ -294,7 +300,7 @@ link_a.cygwin:
 		esac; \
 		SHLIB_SOVER=32; \
 		extras="$(LIBNAME).def"; \
-		$(PERL) util/mkdef.pl 32 $$SHLIB > $$extras; \
+		$(PERL) $(SRCDIR)/util/mkdef.pl 32 $$SHLIB > $$extras; \
 		base=; [ $(LIBNAME) = "crypto" ] && base=-Wl,--image-base,0x63000000; \
 	fi; \
 	dll_name=$$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX; \
@@ -312,7 +318,7 @@ link_a.cygwin:
 	cp -p $$dll_name test/
 link_app.cygwin:
 	@if expr "$(CFLAGS)" : '.*OPENSSL_USE_APPLINK' > /dev/null; then \
-		LIBDEPS="$(TOP)/crypto/applink.o $${LIBDEPS:-$(LIBDEPS)}"; \
+		LIBDEPS="$(SRCDIR)/crypto/applink.o $${LIBDEPS:-$(LIBDEPS)}"; \
 		export LIBDEPS; \
 	fi; \
 	$(LINK_APP)
@@ -393,7 +399,7 @@ link_a.solaris:
 		if [ $(LIBNAME) != "crypto" -a $(LIBNAME) != "ssl" ]; then \
 			ALLSYMSFLAGS="$${MINUSZ}allextract"; \
 		else \
-			$(PERL) util/mkdef.pl $(LIBNAME) linux >$(LIBNAME).map; \
+			$(PERL) $(SRCDIR)/util/mkdef.pl $(LIBNAME) linux >$(LIBNAME).map; \
 			ALLSYMSFLAGS="$${MINUSZ}allextract,-M,$(LIBNAME).map"; \
 		fi; \
 		NOALLSYMSFLAGS="$${MINUSZ}defaultextract"; \

util/mkdef.pl

@@ -40,11 +40,12 @@
 
 use lib ".";
 use configdata;
+use File::Spec::Functions;
 
 my $debug=0;
 
-my $crypto_num= "util/libeay.num";
-my $ssl_num=    "util/ssleay.num";
+my $crypto_num= catfile($config{sourcedir},"util","libeay.num");
+my $ssl_num=    catfile($config{sourcedir},"util","ssleay.num");
 my $libname;
 
 my $do_update = 0;
@@ -384,8 +385,9 @@ sub do_defs
 
 	foreach $file (split(/\s+/,$symhacksfile." ".$files))
 		{
-		print STDERR "DEBUG: starting on $file:\n" if $debug;
-		open(IN,"<$file") || die "unable to open $file:$!\n";
+		my $fn = catfile($config{sourcedir},$file);
+		print STDERR "DEBUG: starting on $fn:\n" if $debug;
+		open(IN,"<$fn") || die "unable to open $fn:$!\n";
 		my $line = "", my $def= "";
 		my %tag = (
 			(map { $_ => 0 } @known_platforms),
@@ -1552,7 +1554,8 @@ sub count_parens
 #version
 sub get_openssl_version()
 {
-	open (IN, "include/openssl/opensslv.h") || die "Can't open opensslv.h";
+	my $fn = catfile($config{sourcedir},"include","openssl","opensslv.h");
+	open (IN, "$fn") || die "Can't open opensslv.h";
 
 	while(<IN>) {
 		if (/OPENSSL_VERSION_TEXT\s+"OpenSSL (\d\.\d\.)(\d[a-z]*)(-| )/) {