> In a few spots in ggobi, there is a "#line 0" directive. This builds on
> gcc, but clang throws an error because it doesn't consider 0 to be a
> positive integer:

> "ggobi-renderer.c:54:7: error: #line directive requires a positive integer
> argument"

> I'm unsure of exactly what the #line directive does, but ggobi does appear
> to build and run fine with clang and gcc if all instances of "#line 0" are
> changed to "#line 1".

> See also:
> https://github.com/mxcl/homebrew/pull/13423 (Homebrew bug report)
> http://lists.freebsd.org/pipermail/freebsd-ports/2011-June/068362.htm... bug report)

> The following patch fixes the issue:

> diff --git a/src/ggobi-data.c b/src/ggobi-data.c
> index ccb52dc..fbd756e 100644
> --- a/src/ggobi-data.c
> +++ b/src/ggobi-data.c
> @@ -42,7 +42,7 @@ typedef GGobiDataClass SelfClass;
>  /* here are local prototypes */
>  static void ___object_set_property (GObject *object, guint property_id,
> const GValue *value, GParamSpec *pspec);
>  static void ___object_get_property (GObject *object, guint property_id,
> GValue *value, GParamSpec *pspec);
> -#line 0 "data.gob"
> +#line 1 "data.gob"
>  static void ggobi_data_class_init (GGobiDataClass * c) G_GNUC_UNUSED;
>  #line 48 "ggobi-data.c"
>  #line 191 "data.gob"
> diff --git a/src/ggobi-renderer-cairo.c b/src/ggobi-renderer-cairo.c
> index 0b51ab6..12a47cf 100644
> --- a/src/ggobi-renderer-cairo.c
> +++ b/src/ggobi-renderer-cairo.c
> @@ -57,10 +57,10 @@ struct _GGobiRendererCairoPrivate {
>  /* here are local prototypes */
>  static void ___object_set_property (GObject *object, guint property_id,
> const GValue *value, GParamSpec *pspec);
>  static void ___object_get_property (GObject *object, guint property_id,
> GValue *value, GParamSpec *pspec);
> -#line 0 "renderer-cairo.gob"
> +#line 1 "renderer-cairo.gob"
>  static void ggobi_renderer_cairo_init (GGobiRendererCairo * o)
> G_GNUC_UNUSED;
>  #line 63 "ggobi-renderer-cairo.c"
> -#line 0 "renderer-cairo.gob"
> +#line 1 "renderer-cairo.gob"
>  static void ggobi_renderer_cairo_class_init (GGobiRendererCairoClass * c)
> G_GNUC_UNUSED;
>  #line 66 "ggobi-renderer-cairo.c"
>  #line 36 "renderer-cairo.gob"
> diff --git a/src/ggobi-renderer-factory.c b/src/ggobi-renderer-factory.c
> index ee1c93e..5be74bf 100644
> --- a/src/ggobi-renderer-factory.c
> +++ b/src/ggobi-renderer-factory.c
> @@ -44,10 +44,10 @@ typedef GGobiRendererFactory Self;
>  typedef GGobiRendererFactoryClass SelfClass;

>  /* here are local prototypes */
> -#line 0 "renderer-factory.gob"
> +#line 1 "renderer-factory.gob"
>  static void ggobi_renderer_factory_init (GGobiRendererFactory * o)
> G_GNUC_UNUSED;
>  #line 50 "ggobi-renderer-factory.c"
> -#line 0 "renderer-factory.gob"
> +#line 1 "renderer-factory.gob"
>  static void ggobi_renderer_factory_class_init (GGobiRendererFactoryClass
> * c) G_GNUC_UNUSED;
>  #line 53 "ggobi-renderer-factory.c"
>  static GGobiRenderer * ___real_ggobi_renderer_factory_create
> (GGobiRendererFactory * self, GdkDrawable * parent);
> diff --git a/src/ggobi-renderer.c b/src/ggobi-renderer.c
> index 1231145..7174c13 100644
> --- a/src/ggobi-renderer.c
> +++ b/src/ggobi-renderer.c
> @@ -51,7 +51,7 @@ struct _GGobiRendererPrivate {
>  /* here are local prototypes */
>  static void ___object_set_property (GObject *object, guint property_id,
> const GValue *value, GParamSpec *pspec);
>  static void ___object_get_property (GObject *object, guint property_id,
> GValue *value, GParamSpec *pspec);
> -#line 0 "renderer.gob"
> +#line 1 "renderer.gob"
>  static void ggobi_renderer_init (GGobiRenderer * o) G_GNUC_UNUSED;
>  #line 57 "ggobi-renderer.c"
>  static GdkDrawable * ___real_ggobi_renderer_create_target (GGobiRenderer
> * self, GdkDrawable * parent);

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