Merge version 6.3.0-14+rpi1 and 6.3.0-18 to produce 6.3.0-18+rpi1

diff --cc debian/changelog
index 17096392243706c69f2b1d148e8ad295fccbcfd8,847bfd33006cf264b59b6ddec5d694da53d31bf9..635ded4d42b4702528ca9d06929e716c1aba6264
--- 1/debian/changelog
--- 2/debian/changelog
+++ b/debian/changelog
@@@ -1,9 -1,56 +1,63 @@@
- gcc-6 (6.3.0-14+rpi1) stretch-staging; urgency=medium
++gcc-6 (6.3.0-18+rpi1) stretch-staging; urgency=medium
 +
 +  [changes brought forward from 6.1.1-1+rpi1 by Peter Michael Green <plugwash@raspbian.org> at Wed, 11 May 2016 20:56:09 +0000]
 +  * Disable testsuite.
 +
-  -- Raspbian forward porter <root@raspbian.org>  Wed, 26 Apr 2017 14:32:36 +0000
++ -- Raspbian forward porter <root@raspbian.org>  Thu, 01 Jun 2017 13:33:01 +0000
++
+ gcc-6 (6.3.0-18) unstable; urgency=medium
+ 
+   * Update to SVN 20170516 (r248076) from the gcc-6-branch.
+     - Revert fix for PR middle-end/80222.
+     - Fix PR target/80090 (PA), PR target/79027 (PA), PR go/64238,
+       PR fortran/80752.
+   * Install crtfastmath.o and re-add unwind support on kfreebsd-amd64 (James
+     Clarke). Closes: #833829.
+   * Work around #814977 (gnat calling gcc-6-6) by providing a gcc-6-6
+     symlink.
+ 
+  -- Matthias Klose <doko@debian.org>  Tue, 16 May 2017 08:59:32 -0700
+ 
+ gcc-6 (6.3.0-17) unstable; urgency=medium
+ 
+   * Update to SVN 20170510 (r247831) from the gcc-6-branch.
+     - Fix PR target/77728 (ARM), PR target/68491 (x86), PR fortran/80392,
+       PR libgomp/80394, PR c/79940, PR c++/79572, PR c++/79641, PR c/80097,
+       PR c++/79512, PR rtl-optimization/80501, PR sanitizer/80349,
+       PR rtl-optimization/80385, PR libgomp/80394, PR c++/80297, PR debug/80321,
+       PR target/80286 (x86), PR debug/79255, PR debug/80025, PR sanitizer/80168,
+       PR rtl-optimization/80112, PR c++/80129, PR sanitizer/79944,
+       PR target/79932 (x86), PR target/79932 (x86), PR c/79940,
+       PR rtl-optimization/79901, PR target/79807 (x86), PR c++/79681,
+       PR target/79729 (x86), PR middle-end/79396, PR target/79570,
+       PR target/79494 (x86), PR target/79568 (x86), PR target/79559 (x86),
+       PR c++/80363, PR c++/80176, PR c++/79572, PR c++/80141, PR c++/79896,
+       PR c++/79664, PR c++/79639, PR c++/79512, PR middle-end/80075,
+       PR plugin/80094, PR tree-optimization/80113, PR tree-optimization/80122,
+       PR tree-optimization/80167, PR tree-optimization/80170,
+       PR middle-end/80171, PR middle-end/80222, PR tree-optimization/80262,
+       PR tree-optimization/80275, PR tree-optimization/80334,
+       PR middle-end/80362, PR tree-optimization/80492, PR middle-end/80539,
+       PR middle-end/71310, PR bootstrap/71510.
+   * Fix dependency on gcc-base package for rtlibs stage build (Helmut Grohne).
+   * Remove libquadmath/gdtoa license from debian/copyright (files removed).
+   * Build libgo when not building common libs.
+   * Fix PR rtl-optimization/60818, taken from the trunk (Adrian Glaubitz).
+     Closes: #861945.
+   * Fix building libgfortran, libgphobos and libmpx when building without
+     common libs.
+ 
+  -- Matthias Klose <doko@debian.org>  Wed, 10 May 2017 13:13:01 +0200
+ 
+ gcc-6 (6.3.0-16) unstable; urgency=medium
+ 
+   * Update to SVN 20170425 (r247223) from the gcc-6-branch.
+     - Fix PR tree-optimization/80426, PR target/80462 (AVR),
+       PR target/79453 (AVR), PR fortran/80361.
+   * libstdc++6: add Breaks: libsigc++-2.0-0c2a (<= 2.4.1-1+b1). Closes: #861060.
+   * Fix PR middle-end/80533 (wrong code), taken from the trunk. LP: #1685385.
+ 
+  -- Matthias Klose <doko@debian.org>  Sun, 30 Apr 2017 15:47:47 +0700
  
  gcc-6 (6.3.0-14) unstable; urgency=medium
  

diff --cc debian/rules.defs
Simple merge