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-rw-r--r--gnu/packages/ghostscript.scm10
-rw-r--r--gnu/packages/patches/ghostscript-no-header-creationdate.patch22
2 files changed, 24 insertions, 8 deletions
diff --git a/gnu/packages/ghostscript.scm b/gnu/packages/ghostscript.scm
index 3a84db3e44..b15b032a72 100644
--- a/gnu/packages/ghostscript.scm
+++ b/gnu/packages/ghostscript.scm
@@ -144,6 +144,7 @@ printing, and psresize, for adjusting page sizes.")
"0lyhjcrkmd5fcmh8h56bs4xr9k4jasmikv5vsix1hd4ai0ad1q9b"))
(patches (search-patches "ghostscript-runpath.patch"
"ghostscript-CVE-2017-8291.patch"
+ "ghostscript-no-header-creationdate.patch"
"ghostscript-no-header-id.patch"
"ghostscript-no-header-uuid.patch"))
(modules '((guix build utils)))
@@ -154,14 +155,7 @@ printing, and psresize, for adjusting page sizes.")
'(begin
(for-each delete-file-recursively '("freetype" "jbig2dec" "jpeg"
"lcms2" "libpng"
- "tiff" "zlib"))
- ;; Get rid of timestamps (remove /CreationDate and /ModDate).
- (substitute* "devices/vector/gdevpdf.c"
- ((", but we do the same")
- (string-append "*/ "
- "if (!getenv(\"GS_GENERATE_UUIDS\") || "
- "(strcmp(getenv(\"GS_GENERATE_UUIDS\"), \"0\") != 0 && "
- "strcmp(getenv(\"GS_GENERATE_UUIDS\"), \"no\") != 0)) /*")))))))
+ "tiff" "zlib"))))))
(build-system gnu-build-system)
(outputs '("out" "doc")) ;19 MiB of HTML/PS doc + examples
(arguments
diff --git a/gnu/packages/patches/ghostscript-no-header-creationdate.patch b/gnu/packages/patches/ghostscript-no-header-creationdate.patch
new file mode 100644
index 0000000000..92ddbdade0
--- /dev/null
+++ b/gnu/packages/patches/ghostscript-no-header-creationdate.patch
@@ -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;