When /etc/ld.so.cache is writeable by user running bitbake then it creates invalid cache 
(in my case libstdc++.so cannot be found after building zlib(-native) and I have to call 
touch */libstdc++.so && /sbin/ldconfig to fix it.

So remove ldconfig call from make install-libs

Upstream-Status: Inappropriate [disable feature]

Index: zlib-1.2.11/Makefile.in
===================================================================
--- zlib-1.2.11.orig/Makefile.in
+++ zlib-1.2.11/Makefile.in
@@ -322,7 +322,6 @@ install-libs: $(LIBS)
 	  rm -f $(DESTDIR)$(sharedlibdir)/$(SHAREDLIB) $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBM); \
 	  ln -s $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)/$(SHAREDLIB); \
 	  ln -s $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBM); \
-	  ($(LDCONFIG) || true)  >/dev/null 2>&1; \
 	fi
 	rm -f $(DESTDIR)$(man3dir)/zlib.3
 	cp $(SRCDIR)zlib.3 $(DESTDIR)$(man3dir)