debian/changelog

+mesa (18.2.5-3) unstable; urgency=medium
+
+  [ Michael Biebl ]
+  * Force compilation against gcc-7, gcc-8 miscompiles mesa
+    See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87859
+    (Closes: #914267).
+
+ -- Andreas Boll <aboll@debian.org>  Thu, 22 Nov 2018 21:18:39 +0100
+
 mesa (18.2.5-2) unstable; urgency=medium
 
   * Move KHR/khrplatform.h from libegl1-mesa-dev to mesa-common-dev

debian/control

@@ -6,6 +6,9 @@ Uploaders: Andreas Boll <aboll@debian.org>
 Standards-Version: 4.1.4
 Build-Depends:
  debhelper (>= 11),
+ gcc-7,
+ g++-7,
+ cpp-7,
  quilt (>= 0.63-8.2~),
  pkg-config,
  libdrm-dev (>= 2.4.92) [!hurd-any],

debian/rules

@@ -10,6 +10,9 @@ DEB_HOST_ARCH      ?= $(shell dpkg-architecture -qDEB_HOST_ARCH)
 DEB_HOST_ARCH_OS   ?= $(shell dpkg-architecture -qDEB_HOST_ARCH_OS)
 DEB_HOST_ARCH_CPU  ?= $(shell dpkg-architecture -qDEB_HOST_ARCH_CPU)
 
+export CC = gcc-7
+export CXX = g++-7
+
 ifeq (,$(filter $(DEB_HOST_ARCH), armhf sh3 sh4))
 buildflags = \
 	$(shell DEB_CFLAGS_MAINT_APPEND=-Wall DEB_CXXFLAGS_MAINT_APPEND=-Wall dpkg-buildflags --export=configure)