Rudimentary support for cross-compiling.

Configure

@@ -38,6 +38,8 @@ my $usage="Usage: Configure [no-<cipher> ...] [enable-<cipher> ...] [-Dxxx] [-lx
 # --test-sanity Make a number of sanity checks on the data in this file.
 #               This is a debugging tool for OpenSSL developers.
 #
+# --cross-compile-prefix Add specified prefix to binutils components.
+#
 # no-hw-xxx     do not compile support for specific crypto hardware.
 #               Generic OpenSSL-style methods relating to this support
 #               are always compiled but return NULL if the hardware
@@ -571,6 +573,7 @@ my $prefix="";
 my $openssldir="";
 my $exe_ext="";
 my $install_prefix="";
+my $cross_compile_prefix="";
 my $no_threads=0;
 my $threads=0;
 my $no_shared=0; # but "no-shared" is default
@@ -764,6 +767,10 @@ PROCESS_ARGS:
 				{
 				$withargs{"zlib-include"}="-I$1";
 				}
+			elsif (/^--cross-compile-prefix=(.*)$/)
+				{
+				$cross_compile_prefix=$1;
+				}
 			else
 				{
 				print STDERR $usage;
@@ -1310,7 +1317,17 @@ while (<IN>)
 	s/^PLATFORM=.*$/PLATFORM=$target/;
 	s/^OPTIONS=.*$/OPTIONS=$options/;
 	s/^CONFIGURE_ARGS=.*$/CONFIGURE_ARGS=$argvstring/;
+	if ($cross_compile_prefix)
+		{
+		s/^CC=.*$/CROSS_COMPILE_PREFIX= $cross_compile_prefix\nCC= \$\(CROSS_COMPILE_PREFIX\)$cc/;
+		s/^AR=\s*/AR= \$\(CROSS_COMPILE_PREFIX\)/;
+		s/^NM=\s*/NM= \$\(CROSS_COMPILE_PREFIX\)/;
+		s/^RANLIB=\s*/RANLIB= \$\(CROSS_COMPILE_PREFIX\)/;
+		}
+	else	{
 		s/^CC=.*$/CC= $cc/;
+		s/^RANLIB=.*/RANLIB= $ranlib/;
+		}
 	s/^MAKEDEPPROG=.*$/MAKEDEPPROG= $cc/ if $cc eq "gcc";
 	s/^CFLAG=.*$/CFLAG= $cflags/;
 	s/^DEPFLAG=.*$/DEPFLAG= $depflags/;
@@ -1329,7 +1346,6 @@ while (<IN>)
 	s/^RMD160_ASM_OBJ=.*$/RMD160_ASM_OBJ= $rmd160_obj/;
 	s/^WP_ASM_OBJ=.*$/WP_ASM_OBJ= $wp_obj/;
 	s/^PROCESSOR=.*/PROCESSOR= $processor/;
-	s/^RANLIB=.*/RANLIB= $ranlib/;
 	s/^ARFLAGS=.*/ARFLAGS= $arflags/;
 	s/^PERL=.*/PERL= $perl/;
 	s/^KRB5_INCLUDES=.*/KRB5_INCLUDES=$withargs{"krb5-include"}/;

Makefile.org

@@ -66,6 +66,7 @@ EXE_EXT=
 ARFLAGS=
 AR=ar $(ARFLAGS) r
 RANLIB= ranlib
+NM= nm
 PERL= perl
 TAR= tar
 TARFLAGS= --no-recursion
@@ -174,7 +175,8 @@ CLEARENV=	TOP= && unset TOP $${LIB+LIB} $${LIBS+LIBS}	\
 BUILDENV=	PLATFORM='${PLATFORM}' PROCESSOR='${PROCESSOR}' \
 		CC='${CC}' CFLAG='${CFLAG}' 			\
 		AS='${CC}' ASFLAG='${CFLAG} -c'			\
-		AR='${AR}' PERL='${PERL}' RANLIB='${RANLIB}'	\
+		AR='${AR}' NM='${NM}' RANLIB='${RANLIB}'	\
+		PERL='${PERL}'					\
 		SDIRS='${SDIRS}' LIBRPATH='${INSTALLTOP}/lib'	\
 		INSTALL_PREFIX='${INSTALL_PREFIX}'		\
 		INSTALLTOP='${INSTALLTOP}' OPENSSLDIR='${OPENSSLDIR}'	\
@@ -383,12 +385,14 @@ dclean:
 	@set -e; target=dclean; $(RECURSIVE_BUILD_CMD)
 
 rehash: rehash.time
-rehash.time: certs
-	@(OPENSSL="`pwd`/util/opensslwrap.sh"; \
+rehash.time: certs apps
+	@if [ -z "$(CROSS_COMPILE_PREFIX)" ]; then \
+		(OPENSSL="`pwd`/util/opensslwrap.sh"; \
 		OPENSSL_DEBUG_MEMORY=on; \
 		export OPENSSL OPENSSL_DEBUG_MEMORY; \
-	  $(PERL) tools/c_rehash certs)
-	touch rehash.time
+		$(PERL) tools/c_rehash certs) && \
+		touch rehash.time; \
+	else :; fi
 
 test:   tests
 

Makefile.shared

@@ -14,6 +14,8 @@ CFLAGS=$(CFLAG)
 LDFLAGS=
 SHARED_LDFLAGS=
 
+NM=nm
+
 # LIBNAME contains just the name of the library, without prefix ("lib"
 # on Unix, "cyg" for certain forms under Cygwin...) or suffix (.a, .so,
 # .dll, ...).  This one MUST have a value when using this makefile to
@@ -101,7 +103,7 @@ LINK_SO=	\
     LIBDEPS="$${LIBDEPS:-$(LIBDEPS)}"; \
     SHAREDCMD="$${SHAREDCMD:-$(CC)}"; \
     SHAREDFLAGS="$${SHAREDFLAGS:-$(CFLAGS) $(SHARED_LDFLAGS)}"; \
-    nm -Pg $$SHOBJECTS | grep ' [BDT] ' | cut -f1 -d' ' > lib$(LIBNAME).exp; \
+    $(NM) -Pg $$SHOBJECTS | grep ' [BDT] ' | cut -f1 -d' ' > lib$(LIBNAME).exp; \
     LIBPATH=`for x in $$LIBDEPS; do if echo $$x | grep '^ *-L' > /dev/null 2>&1; then echo $$x | sed -e 's/^ *-L//'; fi; done | uniq`; \
     LIBPATH=`echo $$LIBPATH | sed -e 's/ /:/g'`; \
     LD_LIBRARY_PATH=$$LIBPATH:$$LD_LIBRARY_PATH \

apps/Makefile

@@ -163,9 +163,7 @@ $(EXE): progs.h $(E_OBJ) $(PROGRAM).o $(DLIBCRYPTO) $(DLIBSSL)
 		APPNAME=$(EXE) OBJECTS="$(PROGRAM).o $(E_OBJ)" \
 		LIBDEPS="$(PEX_LIBS) $$LIBRARIES $(EX_LIBS)" \
 		link_app.$${shlib_target}
-	-(cd ..; \
-	  OPENSSL="`pwd`/util/opensslwrap.sh"; export OPENSSL; \
-	  $(PERL) tools/c_rehash certs)
+	@(cd ..; $(MAKE) rehash)
 
 progs.h: progs.pl
 	$(PERL) progs.pl $(E_EXE) >progs.h