Issue #1048

This commit is adding support of data compression.
LZF was choosen because it small and fast and Redis server uses it.
Since [pecl package](https://pecl.php.net/package/lzf) doesn't provide
lzf.h file after installing, LZF library was added as submodule.
Another algorythms may be easely added by analogy with serializers.
TODO: unit-tests for different data types.

1 files changed, 13 insertions, 4 deletions

diff --git a/config.m4 b/config.m4
index 3a80badf..93d57322 100755
--- a/config.m4
+++ b/config.m4
@@ -3,14 +3,16 @@ dnl config.m4 for extension redis
 
 PHP_ARG_ENABLE(redis, whether to enable redis support,
 dnl Make sure that the comment is aligned:
-[  --enable-redis           Enable redis support])
+[  --enable-redis          Enable redis support])
 
 PHP_ARG_ENABLE(redis-session, whether to enable sessions,
-[  --disable-redis-session      Disable session support], yes, no)
+[  --disable-redis-session Disable session support], yes, no)
 
 PHP_ARG_ENABLE(redis-igbinary, whether to enable igbinary serializer support,
-[  --enable-redis-igbinary      Enable igbinary serializer support], no, no)
+[  --enable-redis-igbinary Enable igbinary serializer support], no, no)
 
+PHP_ARG_ENABLE(redis-lzf, whether to enable lzf compression,
+[  --enable-redis-lzf      Enable lzf compression support], no, no)
 
 if test "$PHP_REDIS" != "no"; then
 
@@ -60,6 +62,13 @@ dnl Check for igbinary
     AC_MSG_RESULT([disabled])
   fi
 
+  if test "$PHP_REDIS_LZF" != "no"; then
+    PHP_ADD_INCLUDE(liblzf)
+    PHP_ADD_BUILD_DIR(liblzf)
+    lzf_sources="liblzf/lzf_c.c liblzf/lzf_d.c"
+    AC_DEFINE(HAVE_REDIS_LZF, 1, [ ])
+  fi
+
   dnl # --with-redis -> check with-path
   dnl SEARCH_PATH="/usr/local /usr"     # you might want to change this
   dnl SEARCH_FOR="/include/redis.h"  # you most likely want to change this
@@ -99,5 +108,5 @@ dnl Check for igbinary
   dnl
   dnl PHP_SUBST(REDIS_SHARED_LIBADD)
 
-  PHP_NEW_EXTENSION(redis, redis.c redis_commands.c library.c redis_session.c redis_array.c redis_array_impl.c redis_cluster.c cluster_library.c, $ext_shared)
+  PHP_NEW_EXTENSION(redis, redis.c redis_commands.c library.c redis_session.c redis_array.c redis_array_impl.c redis_cluster.c cluster_library.c $lzf_sources, $ext_shared)
 fi