Notes for ectrans - reproducible builds result

Version annotated: 1.1.0-2
Identified issues:
Identifier: records_build_flags
Description Records $CFLAGS, which vary intentionally due to the «-fdebug-prefix-map=${BUILDPATH}=.»,
«-ffile-prefix-map=${BUILDPATH}=.» or «-fmacro-prefix-map=${BUILDPATH}=.» flags.
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We have a patch pending to GCC to fix this issue centrally:
.
https://gcc.gnu.org/ml/gcc-patches/2016-11/msg00182.html
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Though the patch is currently unlikely to be merged. If/when this
is accepted, this issue should be fixed for all packages and you
should not need to fix it specifically in your package.
.
There is also a work-in-progress patch to dpkg that could address this issue:
.
https://bugs.debian.org/985553
.
For more background information see:
.
• https://alioth-lists.debian.net/pipermail/reproducible-builds/Week-of-Mon-20160822/006788.html
• https://alioth-lists.debian.net/pipermail/reproducible-builds/Week-of-Mon-20160905/006984.html
• https://alioth-lists.debian.net/pipermail/reproducible-builds/Week-of-Mon-20160912/007076.html
Identifier: captures_kernel_version_via_CMAKE_SYSTEM
Description Uses CMAKE_SYSTEM, which embeds `uname -sr` output; the -r (version) varies.
.
Instead, use CMAKE_SYSTEM_NAME (`uname -s`), which shouldn't vary.
.
May also be triggered by use of CMAKE_HOST_SYSTEM,
CMAKE_HOST_SYSTEM_VERSION or CMAKE_SYSTEM_VERSION.
.
Parent issue: captures_kernel_version
Comments: src/programs/ectrans.in embeds the timestamp, kernel version, and CFLAGS
 

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