bug#27563: [PATCH v4 2/3] gnu: ghostscript: Make XMP UUID headers optional, depending on environment variable.

[ludo@gnu.org (Ludovic Courtès)]

Danny Milosavljevic <dannym@scratchpost.org> skribis:

> * gnu/packages/patches/ghostscript-no-header-uuid.patch: New file.
> * gnu/local.mk (dist_patch_DATA): Add it.
> * gnu/packages/ghostscript.scm (ghostscript): Use it.

[...]

> --- /dev/null
> +++ b/gnu/packages/patches/ghostscript-no-header-uuid.patch
> @@ -0,0 +1,43 @@
> +This patch makes the UUIDs in the XMP header optional, depending on the
> +setting of the environment variable GS_GENERATE_UUIDS.
> +
> +diff -ur orig/gnu-ghostscript-9.14.0/devices/vector/gdevpdfe.c aa/gnu-ghostscript-9.14.0/devices/vector/gdevpdfe.

Does this also apply to ‘core-updates’?

> +--- orig/gnu-ghostscript-9.14.0/devices/vector/gdevpdfe.c	2017-07-09 23:30:28.960479189 +0200
> ++++ gnu-ghostscript-9.14.0/devices/vector/gdevpdfe.c	2017-07-10 01:04:12.252478276 +0200
> +@@ -617,7 +617,7 @@
> +         return code;
> + 
> +     /* PDF/A XMP reference recommends setting UUID to empty. If not empty must be a URI */
> +-    if (pdev->PDFA != 0)
> ++    if (pdev->PDFA != 0 || (getenv("GS_GENERATE_UUIDS") && (strcmp(getenv("GS_GENERATE_UUIDS"), "0") == 0 || strcmp(getenv("GS_GENERATE_UUIDS"), "no") == 0)))

Rather ‘strcasecmp’ for the last one.

If the resulting ps2pdf works, OK for ‘core-updates’!

Ludo’.