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gnu: ghostscript: Make "/CreationDate", "/ModDate" optional, depending on environment variable.

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* gnu/packages/patches/ghostscript-no-header-creationdate.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/ghostscript.scm (ghostscript): Use it.
This commit is contained in:
Danny Milosavljevic 2017-07-10 01:28:34 +02:00
parent 63eb4a2a91
commit ad22c71853
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3 changed files with 25 additions and 8 deletions
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22
gnu/packages/patches/ghostscript-no-header-creationdate.patch Normal file
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@ -0,0 +1,22 @@
This patch makes emission of /CreationDate and /ModDate headers optional.
If the environment variable GS_GENERATE_UUIDS is set to "0" or "no", it will
not write out the "/ID" field (if that's permissible).
Upstream does not want to do this.
See: https://bugs.ghostscript.com/show_bug.cgi?id=698208
diff --git a/orig/gnu-ghostscript-9.14.0/devices/vector/gdevpdf.c b/bb/gnu-ghostscript-9.14.0/devices/vector/gdevpdf.c
index 0fb067e..b342e2c 100644
--- orig/gnu-ghostscript-9.14.0/devices/vector/gdevpdf.c
+++ gnu-ghostscript-9.14.0/devices/vector/gdevpdf.c
@@ -305,6 +305,9 @@ pdf_initialize_ids(gx_device_pdf * pdev)
* date and time, rather than (for example) %%CreationDate from the
* PostScript file. We think this is wrong, but we do the same.
*/
+ if (!getenv("GS_GENERATE_UUIDS") ||
+ (strcasecmp(getenv("GS_GENERATE_UUIDS"), "0") != 0 &&
+ strcasecmp(getenv("GS_GENERATE_UUIDS"), "no") != 0))
{
struct tm tms;
time_t t;