[dpkg] 36/192: build: Add new gcc-7 warnings

[Ximin Luo]

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infinity0 pushed a commit to branch pu/reproducible_builds
in repository dpkg.

commit 449adb2959642f8a10729a0cbf6eedf0cc4441b2
Author: Guillem Jover <guillem at debian.org>
Date:   Wed Feb 22 22:49:18 2017 +0100

    build: Add new gcc-7 warnings
---
 debian/changelog    | 2 ++
 m4/dpkg-compiler.m4 | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/debian/changelog b/debian/changelog
index a1507a3..c988db6 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -5,6 +5,8 @@ dpkg (1.19.0) UNRELEASED; urgency=medium
       new required Perl contains the needed functions.
   * Build system:
     - Require Perl 5.20.2, the version in Debian oldstable (jessie).
+    - Use new gcc-7 -Wrestrict and -Wshift-negative-value warnings if
+      available.
 
  -- Guillem Jover <guillem at debian.org>  Thu, 18 May 2017 05:27:31 +0200
 
diff --git a/m4/dpkg-compiler.m4 b/m4/dpkg-compiler.m4
index ad11c19..8acd399 100644
--- a/m4/dpkg-compiler.m4
+++ b/m4/dpkg-compiler.m4
@@ -62,7 +62,9 @@ AC_DEFUN([DPKG_CHECK_COMPILER_WARNINGS], [
   DPKG_CHECK_COMPILER_FLAG([-Winit-self])
   DPKG_CHECK_COMPILER_FLAG([-Wwrite-strings])
   DPKG_CHECK_COMPILER_FLAG([-Wcast-align])
+  DPKG_CHECK_COMPILER_FLAG([-Wrestrict])
   DPKG_CHECK_COMPILER_FLAG([-Wshadow])
+  DPKG_CHECK_COMPILER_FLAG([-Wshift-negative-value])
   DPKG_CHECK_COMPILER_FLAG([-Wduplicated-cond])
   DPKG_CHECK_COMPILER_FLAG([-Wnull-dereference])
 

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