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-rw-r--r--gnu/packages/patches/perl-no-build-time.patch26
1 files changed, 26 insertions, 0 deletions
diff --git a/gnu/packages/patches/perl-no-build-time.patch b/gnu/packages/patches/perl-no-build-time.patch
new file mode 100644
index 0000000000..5d78e8f462
--- /dev/null
+++ b/gnu/packages/patches/perl-no-build-time.patch
@@ -0,0 +1,26 @@
+Do not record the configuration and build time so that builds can be
+reproduced bit-for-bit.
+
+--- perl-5.22.0/Configure	1970-01-01 01:00:00.000000000 +0100
++++ perl-5.22.0/Configure	2015-12-13 00:14:43.148165080 +0100
+@@ -3834,6 +3817,7 @@ esac
+ 
+ : who configured the system
+ cf_time=`LC_ALL=C; LANGUAGE=C; export LC_ALL; export LANGUAGE; $date 2>&1`
++cf_time='Thu Jan  1 00:00:01 UTC 1970'
+ case "$cf_by" in
+ "")
+ 	cf_by=`(logname) 2>/dev/null`
+
+--- perl-5.22.0/perl.c	2015-12-13 00:25:30.269156627 +0100
++++ perl-5.22.0/perl.c	2015-12-13 00:25:38.265218175 +0100
+@@ -1795,7 +1795,7 @@ S_Internals_V(pTHX_ CV *cv)
+     PUSHs(Perl_newSVpvn_flags(aTHX_ non_bincompat_options,
+ 			      sizeof(non_bincompat_options) - 1, SVs_TEMP));
+ 
+-#ifdef __DATE__
++#if 0
+ #  ifdef __TIME__
+     PUSHs(Perl_newSVpvn_flags(aTHX_
+ 			      STR_WITH_LEN("Compiled at " __DATE__ " " __TIME__),
+