development/snappy: Fix build with gtest installed.

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

development/snappy/73.patch

@@ -0,0 +1,23 @@
+From 89342ecf34894461cc64c9cbe3f8bc0d18df5073 Mon Sep 17 00:00:00 2001
+From: "liangyukun.lyk" <lyk19961210@gmail.com>
+Date: Mon, 27 Aug 2018 18:08:46 +0800
+Subject: [PATCH] fix cmake build error
+
+---
+ CMakeLists.txt | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 41a2124..2a822dd 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -145,6 +145,9 @@ if(SNAPPY_BUILD_TESTS)
+   target_compile_definitions(snappy_unittest PRIVATE -DHAVE_CONFIG_H)
+   target_link_libraries(snappy_unittest snappy ${GFLAGS_LIBRARIES})
+ 
++  if(HAVE_GTEST)
++    target_link_libraries(snappy_unittest gtest)
++  endif(HAVE_GTEST)
+   if(HAVE_LIBZ)
+     target_link_libraries(snappy_unittest z)
+   endif(HAVE_LIBZ)

development/snappy/snappy.SlackBuild

@@ -5,7 +5,7 @@
 
 PRGNAM=snappy
 VERSION=${VERSION:-1.1.8}
-BUILD=${BUILD:-1}
+BUILD=${BUILD:-2}
 TAG=${TAG:-_SBo}
 
 if [ -z "$ARCH" ]; then
@@ -52,6 +52,9 @@ find -L . \
  \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
 
+# Fix build with gtest installed
+patch -p1 < $CWD/73.patch
+
 mkdir -p build
 cd build
 cmake \