Bug#1053356: rtpengine: please make the build reproducible

Chris Lamb lamby at debian.org
Mon Oct 2 14:10:46 BST 2023


Source: rtpengine
Version: 11.5.1.3-2
Severity: wishlist
Tags: patch
User: reproducible-builds at lists.alioth.debian.org
Usertags: timestamps
X-Debbugs-Cc: reproducible-bugs at lists.alioth.debian.org

Hi,

Whilst working on the Reproducible Builds effort [0], we noticed that
rtpengine could not be built reproducibly.

This is because the manpages generated by pandoc contained the current
build date.

An (upstreamable) patch is attached that uses the value from the
SOURCE_DATE_EPOCH environment variable if available.

 [0] https://reproducible-builds.org/


Regards,

-- 
      ,''`.
     : :'  :     Chris Lamb
     `. `'`      lamby at debian.org / chris-lamb.co.uk
       `-
-------------- next part --------------
--- a/debian/patches/reproducible-build.patch	1970-01-01 01:00:00.000000000 +0100
--- b/debian/patches/reproducible-build.patch	2023-10-02 15:02:34.238412892 +0200
@@ -0,0 +1,28 @@
+Description: Make the build reproducible
+Author: Chris Lamb <lamby at debian.org>
+Last-Update: 2023-10-02
+
+--- rtpengine-11.5.1.3.orig/lib/common.Makefile
++++ rtpengine-11.5.1.3/lib/common.Makefile
+@@ -38,7 +38,7 @@ $(DAEMONSRCS) $(HASHSRCS):	$(patsubst %,
+ 	cat "$<" | sed '/^# /d; s/^##/#/' | \
+ 		pandoc -s -t man \
+ 			-M "footer:$(RTPENGINE_VERSION)" \
+-			-M "date:$(shell date -I)" \
++			-M "date:$(BUILD_DATE)" \
+ 			-o "$@"
+ 
+ resample.c codeclib.strhash.c mix.c packet.c:	fix_frame_channel_layout.h
+--- rtpengine-11.5.1.3.orig/lib/lib.Makefile
++++ rtpengine-11.5.1.3/lib/lib.Makefile
+@@ -64,3 +64,10 @@ ifneq ($(DBG),yes)
+     endif
+   endif
+ endif
++
++DATE_FMT = +%Y-%m-%d
++ifdef SOURCE_DATE_EPOCH
++    BUILD_DATE ?= $(shell date -u -d "@$(SOURCE_DATE_EPOCH)" "$(DATE_FMT)" 2>/dev/null || date -u -r "$(SOURCE_DATE_EPOCH)" "$(DATE_FMT)" 2>/dev/null || date -u "$(DATE_FMT)")
++else
++    BUILD_DATE ?= $(shell date "$(DATE_FMT)")
++endif
--- a/debian/patches/series	1970-01-01 01:00:00.000000000 +0100
--- b/debian/patches/series	2023-10-02 15:02:31.666403496 +0200
@@ -0,0 +1 @@
+reproducible-build.patch


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