Bug#1020719: chibicc: reproducible-builds: Embedded build path in /usr/bin/chibicc

[Vagrant Cascadian]

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

The build path is embedded in /usr/bin/chibicc:

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

  /build/1st/chibicc-0+git20220719+ds/codegen.c:18
  vs.
  /build/2/chibicc-0+git20220719+ds/2nd/codegen.c:18

The attached patch fixes this in debian/rules by adding a dh_auto_build
override which passes the default CFLAGS.

With this patch applied chibicc should build reproducibly on
tests.reproducible-builds.org!

Thanks for maintaining chibicc!

live well,
  vagrant
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