[GRASS-dev] Improving the G_calloc: unable to allocate xx bytes of memory message?

Glynn Clements glynn at gclements.plus.com
Wed Nov 5 23:59:55 PST 2014

Radim Blazek wrote:

> > +++ include/Make/Compile.make   (working copy)
> > +#define G_malloc(n)     G__malloc(RELDIR "/" __FILE__, __LINE__, (n))
> > +#define G_calloc(m, n)  G__calloc(RELDIR "/" __FILE__, __LINE__, (m), (n))
> > +#define G_realloc(p, n) G__realloc(RELDIR "/" __FILE__, __LINE__, (p), (n))
> With RELDIR defined in Grass.make it is impossible to compile anything
> with GRASS libs without GRASS build system. Could you please add the
> RELDIR definition to some header file?

$(RELDIR) is just $(CURDIR) minus $(GRASS_HOME):

	RELDIR		:= $(subst $(GRASS_HOME)/,,$(CURDIR))

Like $(CURDIR), it's different for each subdirectory, so it's not
something which can be put into a header file.

However, it's also not used for anything other than error messages, so
compiling with e.g. -DRELDIR= or -DRELDIR=\"$(CURDIR)\" is safe.

I've added a fallback in r62632.

Glynn Clements <glynn at gclements.plus.com>

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