File gprolog-1.5.0-use-source_date_epoch.patch of Package gprolog

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File gprolog-1.5.0-use-source_date_epoch.patch of Package gprolog (Revision 6b7f14dec8fd7d0cd3310d0e3f85363d)

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From c74ba44e1e6ee5e0cb1dda9d1eabf97b725c0a7e Mon Sep 17 00:00:00 2001
From: Antoine Belvire <antoine.belvire@opensuse.org>
Date: Sat, 4 Sep 2021 21:11:38 +0200
Subject: [PATCH] Use SOURCE_DATE_EPOCH for reproducible builds

---
 src/configure    | 8 ++++++--
 src/configure.in | 9 +++++++--
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/src/configure b/src/configure
index 4d448bd0..fe5ca063 100755
--- a/src/configure
+++ b/src/configure
@@ -2459,15 +2459,19 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
 
+_date()
+{
+    LC_ALL=C date --date "@${SOURCE_DATE_EPOCH:-$(date +%s)}" "$@"
+}
 
 pl_date()
 {
-    LC_ALL=C date '+%b %e %Y'
+    _date '+%b %e %Y'
 }
 
 pl_year()
 {
-    LC_ALL=C date '+%Y'
+    _date '+%Y'
 }
 
 PROLOG_NAME='GNU Prolog'
diff --git a/src/configure.in b/src/configure.in
index 31072573..08b3d9de 100644
--- a/src/configure.in
+++ b/src/configure.in
@@ -11,14 +11,19 @@ dnl ***************************
 dnl * initial variable values *
 dnl ***************************
 
+_date()
+{
+    LC_ALL=C date --date "@${SOURCE_DATE_EPOCH:-$(date +%s)}" "$@"
+}
+
 pl_date()
 {
-    LC_ALL=C date '+%b %e %Y'
+    _date '+%b %e %Y'
 }
 
 pl_year()
 {
-    LC_ALL=C date '+%Y'
+    _date '+%Y'
 }
 
 PROLOG_NAME='GNU Prolog'
-- 
2.33.0

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File gprolog-1.5.0-use-source_date_epoch.patch of Package gprolog (Revision 6b7f14dec8fd7d0cd3310d0e3f85363d)

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