contrib: breakpad: correctly install dump_syms

If no bin folder existed, it would install the dump_syms binary
to a binary called bin, causing all other contribs built after to
fail with a rather confusing error as they are of course unable to
install into an executable named bin instead of a folder.

contrib/src/breakpad/rules.mak

@@ -29,7 +29,8 @@ ifdef HAVE_MACOSX
 	# Tools
 	cd $</src/tools/mac/dump_syms && \
 		xcodebuild $(XCODE_FLAGS) CLANG_CXX_LIBRARY=libc++ && \
-		cp -R build/Release/dump_syms "$(PREFIX)/bin"
+		install -d "$(PREFIX)/bin" && \
+		install build/Release/dump_syms "$(PREFIX)/bin"
 else
 	$(RECONF)
 	cd $< && $(HOSTVARS) ./configure $(HOSTCONF) --disable-processor