Make sure LD_PRELOAD is only set when we build shared libraries (and

therefore link with them).  Add LD_PRELOAD setting code where it was
still missing.

PR: 966

apps/Makefile

@@ -159,6 +159,10 @@ $(EXE): progs.h $(E_OBJ) $(PROGRAM).o $(DLIBCRYPTO) $(DLIBSSL)
 		LIBPATH="`pwd`:$$LIBPATH"; \
 		if [ "$(PLATFORM)" = "Cygwin" ]; then PATH="`pwd`:$$PATH"; fi; \
 		export LD_LIBRARY_PATH DYLD_LIBRARY_PATH SHLIB_PATH LIBPATH PATH; \
+		if [ -n "$(SHARED_LIBS)" ]; then \
+		  LD_PRELOAD="$$OSSL_LIBPATH/libssl.so $$OSSL_LIBPATH/libcrypto.so"; \
+		  export LD_PRELOAD; \
+		fi; \
 		$(PERL) tools/c_rehash certs)
 
 progs.h: progs.pl