diff --git a/cmake/arch.cmake b/cmake/arch.cmake
index f61bac96ab0..ba446d95676 100644
--- a/cmake/arch.cmake
+++ b/cmake/arch.cmake
@@ -22,6 +22,10 @@ if (NOT MSVC)
     set (NOT_MSVC 1)
 endif ()
 
+if (NOT APPLE)
+    set (NOT_APPLE 1)
+endif ()
+
 if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
     set (COMPILER_GCC 1)
 elseif (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
diff --git a/cmake/find_llvm.cmake b/cmake/find_llvm.cmake
index 618eaadf41a..8a8ad33a38c 100644
--- a/cmake/find_llvm.cmake
+++ b/cmake/find_llvm.cmake
@@ -1,4 +1,4 @@
-option (ENABLE_EMBEDDED_COMPILER "Set to TRUE to enable support for 'compile' option for query execution" 1)
+option (ENABLE_EMBEDDED_COMPILER "Set to TRUE to enable support for 'compile' option for query execution" ${NOT_APPLE})
 
 if (ENABLE_EMBEDDED_COMPILER)
     # Based on source code of YT.
diff --git a/contrib/libsparsehash/sparsehash/sparsetable b/contrib/libsparsehash/sparsehash/sparsetable
index efbeaac0a69..d162623a5f5 100644
--- a/contrib/libsparsehash/sparsehash/sparsetable
+++ b/contrib/libsparsehash/sparsehash/sparsetable
@@ -1088,7 +1088,7 @@ class sparsegroup {
     // This is equivalent to memmove(), but faster on my Intel P4,
     // at least with gcc4.1 -O2 / glibc 2.3.6.
     for (size_type i = settings.num_buckets; i > offset; --i)
-      memcpy(group + i, group + i-1, sizeof(*group));
+      memcpy(static_cast<void*>(group + i), group + i-1, sizeof(*group));
   }
 
   // Create space at group[offset], without special assumptions about value_type
@@ -1154,7 +1154,7 @@ class sparsegroup {
     // at lesat with gcc4.1 -O2 / glibc 2.3.6.
     assert(settings.num_buckets > 0);
     for (size_type i = offset; i < settings.num_buckets-1; ++i)
-      memcpy(group + i, group + i+1, sizeof(*group));  // hopefully inlined!
+      memcpy(static_cast<void*>(group + i), group + i+1, sizeof(*group));  // hopefully inlined!
     group = settings.realloc_or_die(group, settings.num_buckets-1);
   }
 
diff --git a/dbms/src/Common/HashTable/HashTable.h b/dbms/src/Common/HashTable/HashTable.h
index b04d3444f93..9fe446ccb8f 100644
--- a/dbms/src/Common/HashTable/HashTable.h
+++ b/dbms/src/Common/HashTable/HashTable.h
@@ -408,7 +408,7 @@ protected:
 
         /// Copy to a new location and zero the old one.
         x.setHash(hash_value);
-        memcpy(&buf[place_value], &x, sizeof(x));
+        memcpy(static_cast<void*>(&buf[place_value]), &x, sizeof(x));
         x.setZero();
 
         /// Then the elements that previously were in collision with this can move to the old place.
@@ -726,7 +726,7 @@ public:
     {
         size_t place_value = findEmptyCell(grower.place(hash_value));
 
-        memcpy(&buf[place_value], cell, sizeof(*cell));
+        memcpy(static_cast<void*>(&buf[place_value]), cell, sizeof(*cell));
         ++m_size;
 
         if (unlikely(grower.overflow(m_size)))
@@ -897,7 +897,7 @@ public:
         this->clearHasZero();
         m_size = 0;
 
-        memset(buf, 0, grower.bufSize() * sizeof(*buf));
+        memset(static_cast<void*>(buf), 0, grower.bufSize() * sizeof(*buf));
     }
 
     /// After executing this function, the table can only be destroyed,
diff --git a/dbms/src/Common/StringSearcher.h b/dbms/src/Common/StringSearcher.h
index f43fe6c717c..7392e08ea25 100644
--- a/dbms/src/Common/StringSearcher.h
+++ b/dbms/src/Common/StringSearcher.h
@@ -86,8 +86,8 @@ public:
         if (*needle < 0x80u)
         {
             first_needle_symbol_is_ascii = true;
-            l = static_cast<const UInt8>(std::tolower(*needle));
-            u = static_cast<const UInt8>(std::toupper(*needle));
+            l = std::tolower(*needle);
+            u = std::toupper(*needle);
         }
         else
         {
diff --git a/dbms/src/DataStreams/CollapsingFinalBlockInputStream.h b/dbms/src/DataStreams/CollapsingFinalBlockInputStream.h
index db06a2aa9d3..607149bbcd2 100644
--- a/dbms/src/DataStreams/CollapsingFinalBlockInputStream.h
+++ b/dbms/src/DataStreams/CollapsingFinalBlockInputStream.h
@@ -150,7 +150,7 @@ private:
                 --ptr->refcount;
                 if (!ptr->refcount)
                 {
-                    if (std::uncaught_exception())
+                    if (std::uncaught_exceptions())
                         delete ptr;
                     else
                         ptr->output_blocks->push_back(ptr);
diff --git a/dbms/src/Storages/MergeTree/MergeTreeBaseBlockInputStream.cpp b/dbms/src/Storages/MergeTree/MergeTreeBaseBlockInputStream.cpp
index 9f8525d2092..a405620e7d8 100644
--- a/dbms/src/Storages/MergeTree/MergeTreeBaseBlockInputStream.cpp
+++ b/dbms/src/Storages/MergeTree/MergeTreeBaseBlockInputStream.cpp
@@ -147,8 +147,12 @@ Block MergeTreeBaseBlockInputStream::readFromPart()
     }
 
     size_t recommended_rows = estimateNumRows(*task, task->range_reader);
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wignored-qualifiers"
     size_t rows_to_read = std::max(static_cast<decltype(max_block_size_rows)>(1),
                                    std::min(max_block_size_rows, recommended_rows));
+#pragma GCC diagnostic pop
 
     auto read_result = task->range_reader.read(rows_to_read, task->mark_ranges);
 
diff --git a/dbms/src/Storages/MergeTree/checkDataPart.cpp b/dbms/src/Storages/MergeTree/checkDataPart.cpp
index 1c25112ca39..ff36619756b 100644
--- a/dbms/src/Storages/MergeTree/checkDataPart.cpp
+++ b/dbms/src/Storages/MergeTree/checkDataPart.cpp
@@ -69,8 +69,8 @@ public:
         readIntBinary(mrk_mark.offset_in_decompressed_block, mrk_hashing_buf);
 
         bool has_alternative_mark = false;
-        MarkInCompressedFile alternative_data_mark;
-        MarkInCompressedFile data_mark;
+        MarkInCompressedFile alternative_data_mark = {};
+        MarkInCompressedFile data_mark = {};
 
         /// If the mark should be exactly at the border of blocks, we can also use a mark pointing to the end of previous block,
         ///  and the beginning of next.
diff --git a/dbms/tests/server-test.xml b/dbms/tests/server-test.xml
index 9e4480cb0d3..9c392d0e518 100644
--- a/dbms/tests/server-test.xml
+++ b/dbms/tests/server-test.xml
@@ -71,6 +71,7 @@
             </shard>
         </test_shard_localhost_secure>
     </remote_servers>
+    <include_from/>
     <zookeeper incl="zookeeper-servers" optional="true" />
     <macros incl="macros" optional="true" />
     <builtin_dictionaries_reload_interval>3600</builtin_dictionaries_reload_interval>
diff --git a/debian/.pbuilderrc b/debian/.pbuilderrc
index 82c88b6bece..9edf5f91239 100644
--- a/debian/.pbuilderrc
+++ b/debian/.pbuilderrc
@@ -173,9 +173,12 @@ else
     export CMAKE_FLAGS="-DENABLE_EMBEDDED_COMPILER=0 $CMAKE_FLAGS"
 fi
 
-# will test symbols
+# Will test symbols
 #EXTRAPACKAGES+=" gdb "
 
+# For killall in pbuilder-hooks:
+EXTRAPACKAGES+=" psmisc "
+
 [[ $CCACHE_PREFIX == 'distcc' ]] && EXTRAPACKAGES+=" $CCACHE_PREFIX "
 
 export DEB_BUILD_OPTIONS=parallel=`nproc`
diff --git a/docker/builder/build.sh b/docker/builder/build.sh
index a392638a319..f63dbb65558 100644
--- a/docker/builder/build.sh
+++ b/docker/builder/build.sh
@@ -2,6 +2,6 @@
 
 mkdir -p /server/build_docker
 cd /server/build_docker
-cmake /server -DENABLE_EMBEDDED_COMPILER=1 -DENABLE_TESTS=0
+cmake /server -DENABLE_TESTS=0
 make -j $(nproc || grep -c ^processor /proc/cpuinfo)
 #ctest -V -j $(nproc || grep -c ^processor /proc/cpuinfo)
diff --git a/libs/libcommon/include/ext/bit_cast.h b/libs/libcommon/include/ext/bit_cast.h
index 49c48493d68..7bc70edcfe0 100644
--- a/libs/libcommon/include/ext/bit_cast.h
+++ b/libs/libcommon/include/ext/bit_cast.h
@@ -14,7 +14,7 @@ namespace ext
     std::decay_t<To> bit_cast(const From & from)
     {
         To res {};
-        memcpy(&res, &from, std::min(sizeof(res), sizeof(from)));
+        memcpy(static_cast<void*>(&res), &from, std::min(sizeof(res), sizeof(from)));
         return res;
     };
 
diff --git a/release b/release
index 831c38daff7..cfc81791657 100755
--- a/release
+++ b/release
@@ -6,7 +6,7 @@
 # Clang6 build:
 # env DIST=bionic EXTRAPACKAGES="clang-6.0 libstdc++-8-dev lld-6.0 liblld-6.0-dev libclang-6.0-dev liblld-6.0" DEB_CC=clang-6.0 DEB_CXX=clang++-6.0 CMAKE_FLAGS=" -DLLVM_VERSION_POSTFIX=-6.0 -DNO_WERROR=1 " ./release
 # Clang7 build:
-# env DIST=unstable EXTRAPACKAGES="clang-7 libstdc++-8-dev lld-7 liblld-7-dev libclang-7-dev llvm-7-dev liblld-7" DEB_CC=clang-7 DEB_CXX=clang++-7 CMAKE_FLAGS=" -DLLVM_VERSION_POSTFIX=-7 -DNO_WERROR=1 " ./release
+# env DIST=unstable EXTRAPACKAGES="clang-7 libstdc++-8-dev lld-7 liblld-7-dev libclang-7-dev liblld-7" DEB_CC=clang-7 DEB_CXX=clang++-7 CMAKE_FLAGS=" -DLLVM_VERSION_POSTFIX=-7 -DNO_WERROR=1 " ./release
 # Clang6 without internal compiler (for low memory arm64):
 # env DIST=bionic DISABLE_PARALLEL=1 EXTRAPACKAGES="clang-6.0 libstdc++-8-dev" DEB_CC=clang-6.0 DEB_CXX=clang++-6.0 CMAKE_FLAGS=" -DNO_WERROR=1 " ./release
 
@@ -33,7 +33,7 @@ while [[ $1 == --* ]]
 do
     if [[ $1 == '--test' ]]; then
         TEST='yes'
-        VERSION_POSTFIX+=-test
+        VERSION_POSTFIX+=+test
         shift
     elif [[ $1 == '--check-build-dependencies' ]]; then
         DEBUILD_NODEPS_OPTIONS=""
@@ -66,7 +66,7 @@ done
 if [ -n "$SANITIZER" ]
 then
     CMAKE_BUILD_TYPE=$SANITIZER
-    VERSION_POSTFIX+=-${SANITIZER,,}
+    VERSION_POSTFIX+=+${SANITIZER,,}
     # todo: нужно ли отключить libtcmalloc?
     LIBTCMALLOC_OPTS="-DENABLE_TCMALLOC=0"
     # GLIBC_COMPATIBILITY отключен по умолчанию
@@ -75,14 +75,14 @@ then
     EXTRAPACKAGES="$EXTRAPACKAGES clang-5.0 lld-5.0"
 elif [[ $BUILD_TYPE == 'valgrind' ]]; then
     LIBTCMALLOC_OPTS="-DENABLE_TCMALLOC=0"
-    VERSION_POSTFIX+=-$BUILD_TYPE
+    VERSION_POSTFIX+=+$BUILD_TYPE
 elif [[ $BUILD_TYPE == 'debug' ]]; then
     CMAKE_BUILD_TYPE=Debug
     LIBTCMALLOC_OPTS="-DDEBUG_TCMALLOC=1"
-    VERSION_POSTFIX+=-$BUILD_TYPE
+    VERSION_POSTFIX+=+$BUILD_TYPE
 fi
 
-CMAKE_FLAGS=" $LIBTCMALLOC_OPTS -DCMAKE_BUILD_TYPE=$CMAKE_BUILD_TYPE -DENABLE_EMBEDDED_COMPILER=1 $CMAKE_FLAGS"
+CMAKE_FLAGS=" $LIBTCMALLOC_OPTS -DCMAKE_BUILD_TYPE=$CMAKE_BUILD_TYPE $CMAKE_FLAGS"
 export CMAKE_FLAGS
 export EXTRAPACKAGES
 
diff --git a/utils/travis/pbuilder.sh b/utils/travis/pbuilder.sh
index 613ecd61e0a..f5a3ee6c14a 100755
--- a/utils/travis/pbuilder.sh
+++ b/utils/travis/pbuilder.sh
@@ -24,7 +24,7 @@ env TEST_RUN=${TEST_RUN=1} \
     DEB_CC=${DEB_CC=$CC} DEB_CXX=${DEB_CXX=$CXX} \
     CCACHE_SIZE=${CCACHE_SIZE:=4G} \
     `# Disable all features` \
-    CMAKE_FLAGS="-DCMAKE_BUILD_TYPE=Debug -DUNBUNDLED=1 -DENABLE_UNWIND=0 -DENABLE_MYSQL=0 -DENABLE_CAPNP=0 -DENABLE_RDKAFKA=0 -DENABLE_EMBEDDED_COMPILER=1 -DCMAKE_C_FLAGS_ADD='-O0 -g0' -DCMAKE_CXX_FLAGS_ADD='-O0 -g0' $CMAKE_FLAGS" \
+    CMAKE_FLAGS="-DCMAKE_BUILD_TYPE=Debug -DUNBUNDLED=1 -DENABLE_UNWIND=0 -DENABLE_MYSQL=0 -DENABLE_CAPNP=0 -DENABLE_RDKAFKA=0 -DCMAKE_C_FLAGS_ADD='-O0 -g0' -DCMAKE_CXX_FLAGS_ADD='-O0 -g0' $CMAKE_FLAGS" \
     `# Use all possible contrib libs from system` \
     `# psmisc - killall` \
     EXTRAPACKAGES="psmisc clang-5.0 lld-5.0 liblld-5.0-dev libclang-5.0-dev liblld-5.0 libc++abi-dev libc++-dev libboost-program-options-dev libboost-system-dev libboost-filesystem-dev libboost-thread-dev zlib1g-dev liblz4-dev libdouble-conversion-dev libsparsehash-dev librdkafka-dev libpoco-dev libsparsehash-dev libgoogle-perftools-dev libzstd-dev libre2-dev $EXTRAPACKAGES" \