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build: Honor $SOURCE_DATE_EPOCH for the recorded timestamp.

Reported by Jan Nieuwenhuizen <janneke@gnu.org>
at <https://debbugs.gnu.org/cgi/bugreport.cgi?bug=20272#36>.

* libguile/Makefile.am (libpath.h): Honor 'SOURCE_DATE_EPOCH'.
This commit is contained in:
Ludovic Courtès 2016-12-14 17:20:00 +01:00
parent 2fbde7f02a
commit 54b43451ef

View file

@ -1,7 +1,7 @@
## Process this file with Automake to create Makefile.in
##
## Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2006, 2007,
## 2008, 2009, 2010, 2011, 2012, 2013, 2014 Free Software Foundation, Inc.
## 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2016 Free Software Foundation, Inc.
##
## This file is part of GUILE.
##
@ -721,7 +721,8 @@ libpath.h: $(srcdir)/Makefile.in $(top_builddir)/config.status
>> libpath.tmp
@echo ' { "LIBS", "@GUILE_LIBS@" }, \' >> libpath.tmp
@echo ' { "CFLAGS", "@GUILE_CFLAGS@" }, \' >> libpath.tmp
@echo ' { "buildstamp", "'`date -u +'%Y-%m-%d %T'`'" }, \' >> libpath.tmp
@BUILD_DATE="$${SOURCE_DATE_EPOCH:-`date '+%s'`}" ; \
echo ' { "buildstamp", "'`date -u +'%Y-%m-%d %T' -d @$$BUILD_DATE`'" }, \' >> libpath.tmp
@echo '}' >> libpath.tmp
$(AM_V_GEN)mv libpath.tmp libpath.h