guix-more/ocamlgraph-honor-source-date-epoch.patch

ocamlgraph-honor-source-date-epoch.patch

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From 354ef78aac0b887fae3c10b28eb2b0d83f66bdfe Mon Sep 17 00:00:00 2001
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From: Julien Lepiller <julien@lepiller.eu>
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Date: Mon, 2 Jan 2017 17:05:24 +0100
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Subject: [PATCH] Honor SOURCE_DATE_EPOCH
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---
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 Makefile.in | 7 ++++++-
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 1 file changed, 6 insertions(+), 1 deletion(-)
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diff --git a/Makefile.in b/Makefile.in
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index a32b4b8..ef4c174 100644
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--- a/Makefile.in
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+++ b/Makefile.in
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@@ -113,11 +113,16 @@ graph.cmx: $(CMI) $(CMX)
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	$(OCAMLOPT) $(INCLUDES) -pack -o $@ $^
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 VERSION=1.8.7
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+ifdef SOURCE_DATE_EPOCH
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+BUILD_DATE=$(shell date -u -d "@$(SOURCE_DATE_EPOCH)" 2>/dev/null || date -u -r "$(SOURCE_DATE_EPOCH)" 2>/dev/null || date)
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+else
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+BUILD_DATE=$(shell date)
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+endif
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 src/version.ml: Makefile
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	rm -f $@
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	echo "let version = \""$(VERSION)"\"" > $@
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-	echo "let date = \""`date`"\"" >> $@
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+	echo "let date = \""$(BUILD_DATE)"\"" >> $@
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 # gtk2 graph editor
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 ###################
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-- 
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2.11.0
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