Bug#1039619: wcc: reproducible-builds: embedded build path in various binaries

[Vagrant Cascadian]

Source: wcc
Severity: normal
Tags: patch
User: reproducible-builds at lists.alioth.debian.org
Usertags: timestamps
X-Debbugs-Cc: reproducible-bugs at lists.alioth.debian.org

The build path is embedded in various binaries:

  https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/diffoscope-results/wcc.html

  /usr/bin/wcc

  /build/1st/wcc-0.0.2+dfsg/src/wcc/wcc.c:3989
  vs.
  /build/2/wcc-0.0.2+dfsg/2nd/src/wcc/wcc.c:3989

The attached patches fix this by appending EXTRA_CFLAGS to CFLAGS in the
upstream Makefile, and the second patch passes CFLAGS via EXTRA_CFLAGS
in debian/rules. The Default CFLAGS include -ffile-prefix-map to avoid
embedding the build path.

According to my local tests, with these patches applied, wcc should
build reproducibly on tests.reproducible-builds.org!

Thanks for maintaining wcc!

live well,
  vagrant
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