Fix test failures of awamicmp1 and awamicmp2.

Debian bug report:

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=855814

Patch adapted from upstream source repository:

https://github.com/silnrsi/graphite/commit/f7bbdd87d510d587c872e314d6458160c0069c65

From f7bbdd87d510d587c872e314d6458160c0069c65 Mon Sep 17 00:00:00 2001
From: Martin Hosken <martin_hosken@sil.org>
Date: Tue, 14 Feb 2017 17:00:03 +0000
Subject: [PATCH] try -ffloat-store for fp stability. Remove nested const to
 work around VS bug

---
 src/CMakeLists.txt    | 2 +-
 src/inc/locale2lcid.h | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 4f1e7e5..5b61b5c 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -108,7 +108,7 @@ set_target_properties(graphite2 PROPERTIES  PUBLIC_HEADER "${GRAPHITE_HEADERS}"
 
 if  (${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
     set_target_properties(graphite2 PROPERTIES 
-        COMPILE_FLAGS   "-Wall -Wextra -Wno-unknown-pragmas -Wendif-labels -Wshadow -Wctor-dtor-privacy -Wnon-virtual-dtor -fno-rtti -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden -fno-stack-protector"
+        COMPILE_FLAGS   "-Wall -Wextra -Wno-unknown-pragmas -Wendif-labels -Wshadow -Wctor-dtor-privacy -Wnon-virtual-dtor -fno-rtti -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden -fno-stack-protector -ffloat-store"
         LINK_FLAGS      "-nodefaultlibs ${GRAPHITE_LINK_FLAGS}" 
         LINKER_LANGUAGE C)
     if (CMAKE_COMPILER_IS_GNUCXX)
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<tr><td><span title='2017-06-20 07:18:01 +0200'>2017-06-20</span></td><td><a href='/guix/commit/gnu/packages/rust.scm?id=5f3d46ce670824bce69425864a8ab99b2e59e9e4'>gnu: rustc: Enable tests.</a><span class='msg-avail'>...</span></td><td>Danny Milosavljevic</td></tr>
<tr><td><span title='2017-04-21 10:18:23 +0200'>2017-04-21</span></td><td><a href='/guix/commit/gnu/packages/rust.scm?id=f0eb0a4bb13bb11f6660a22f3acc2f45567c0dc0'>gnu: cargo: Simplify unpacking.</a><span class='msg-avail'>...</span></td><td>Danny Milosavljevic</td></tr>
<tr><td><span title='2017-04-10 09:01:13 +0200'>2017-04-10</span></td><td><a href='/guix/commit/gnu/packages/rust.scm?id=9ea0cdaf7f60823c861868e210add3d1b3af11fd'>gnu: rustc: Update to 1.16.0. gnu: cargo: Update to 0.17.0.</a><span class='msg-avail'>...</span></td><td>Danny Milosavljevic</td></tr>
<tr><td><span title='2017-03-23 19:36:10 +0100'>2017-03-23</span></td><td><a href='/guix/commit/gnu/packages/rust.scm?id=42c127e876a3fd056bfe981c8b68aea15da9ea4a'>gnu: rustc: Simplify configure phase.</a><span class='msg-avail'>...</span></td><td>Danny Milosavljevic</td></tr>
<tr><td><span title='2017-03-22 17:41:44 +0100'>2017-03-22</span></td><td><a href='/guix/commit/gnu/packages/rust.scm?id=9b7a9580d46e7c2840e7cbd9bb0bfa2fb9dd654f'>gnu: rustc: Honor max line length.</a><span class='msg-avail'>...</span></td><td>Danny Milosavljevic</td></tr>
<tr><td><span title='2017-03-22 12:59:32 +0100'>2017-03-22</span></td><td><a href='/guix/commit/gnu/packages/rust.scm?id=326249bab8e525b8c71f862fb1f2569d703a3e84'>gnu: rustc: End resultless phases in #t.</a><span class='msg-avail'>...</span></td><td>Danny Milosavljevic</td></tr>
<tr><td><span title='2017-03-18 10:37:02 +0100'>2017-03-18</span></td><td><a href='/guix/commit/gnu/packages/rust.scm?id=84aac61c819cf2c82d8d4b54cdf53ed9e713a82f'>gnu: rustc: Fix process test.</a><span class='msg-avail'>...</span></td><td>Danny Milosavljevic</td></tr>
<tr><td><span title='2017-03-17 16:48:08 +0100'>2017-03-17</span></td><td><a href='/guix/commit/gnu/packages/rust.scm?id=893bc3f402588654121499738c1ec42da8a15841'>gnu: cargo: Use upstream cargo.</a><span class='msg-avail'>...</span></td><td>Danny Milosavljevic</td></tr>
<tr><td><span title='2017-03-17 16:48:06 +0100'>2017-03-17</span></td><td><a href='/guix/commit/gnu/packages/rust.scm?id=b0dcb529af5f0e25f95ec033b3c8b681a81ce970'>gnu: rust: Update to 1.15.0.</a><span class='msg-avail'>...</span></td><td>Danny Milosavljevic</td></tr>
<tr><td><span title='2017-02-10 21:54:31 +1000'>2017-02-10</span></td><td><a href='/guix/commit/gnu/packages/rust.scm?id=fa73a7c1b3d9b56395152a0284e10171b4fefaed'>gnu: rustc: Add native-search-paths.</a><span class='msg-avail'>...</span></td><td>Ben Woodcroft</td></tr>
<tr><td><span title='2017-01-09 18:01:52 +0100'>2017-01-09</span></td><td><a href='/guix/commit/gnu/packages/rust.scm?id=5d18d776d269ab9a6c44e049936389df3454ba30'>gnu: rustc: Retain binutils.</a><span class='msg-avail'>...</span></td><td>David Craven</td></tr>
<tr><td><span title='2017-01-04 11:29:15 +0100'>2017-01-04</span></td><td><a href='/guix/commit/gnu/packages/rust.scm?id=3b7ccbe94c3e15a04f1809c5acc894799426235e'>build-system: cargo: Use correct cargo.</a><span class='msg-avail'>...</span></td><td>David Craven</td></tr>
<tr><td><span title='2017-01-04 11:29:14 +0100'>2017-01-04</span></td><td><a href='/guix/commit/gnu/packages/rust.scm?id=b5a09649dbe441bd2959a386f685105b90160ef9'>gnu: Add cargo.</a><span class='msg-avail'>...</span></td><td>David Craven</td></tr>
<tr><td><span title='2016-12-29 12:38:23 +0100'>2016-12-29</span></td><td><a href='/guix/commit/gnu/packages/rust.scm?id=b9542563375fbd5f25bb77fd476b762916b63bd1'>gnu: rustc: Update to 1.14.0.</a><span class='msg-avail'>...</span></td><td>ng0</td></tr>
<tr><td><span title='2016-12-14 16:30:43 +0100'>2016-12-14</span></td><td><a href='/guix/commit/gnu/packages/rust.scm?id=ecee21473bbe8cfff91b5cec2e4626d850de67b2'>gnu: Add rustc.</a><span class='msg-avail'>...</span></td><td>David Craven</td></tr>
<tr><td><span title='2016-12-14 16:30:42 +0100'>2016-12-14</span></td><td><a href='/guix/commit/gnu/packages/rust.scm?id=423f9e4494859d1320aca171c1c61f204737c6bb'>gnu: Add rust bootstrap binaries.</a><span class='msg-avail'>...</span></td><td>David Craven</td></tr>