how to prevent “directory already exists error” in a makefile when using mkdir

Question

I need to generate a directory in my makefile and I would like to not get the \"directory already exists error\" over and over even though I can easily ignore it.

I

Answer 1

On Windows

if not exist "$(OBJDIR)" mkdir $(OBJDIR)

On Unix | Linux

if [ ! -d "$(OBJDIR)" ]; then mkdir $(OBJDIR); fi