Remove unbundled bzip2 support

CMakeLists.txt

@@ -533,7 +533,6 @@ include (cmake/find/nuraft.cmake)
 include (cmake/find/yaml-cpp.cmake)
 include (cmake/find/s2geometry.cmake)
 include (cmake/find/nlp.cmake)
-include (cmake/find/bzip2.cmake)
 include (cmake/find/filelog.cmake)
 
 if(NOT USE_INTERNAL_PARQUET_LIBRARY)

cmake/find/bzip2.cmake

@@ -1,19 +0,0 @@
-option(ENABLE_BZIP2 "Enable bzip2 compression support" ${ENABLE_LIBRARIES})
-
-if (NOT ENABLE_BZIP2)
-    message (STATUS "bzip2 compression disabled")
-    return()
-endif()
-
-if (NOT EXISTS "${ClickHouse_SOURCE_DIR}/contrib/bzip2/bzlib.h")
-    message (WARNING "submodule contrib/bzip2 is missing. to fix try run: \n git submodule update --init")
-    message (${RECONFIGURE_MESSAGE_LEVEL} "Can't find internal bzip2 library")
-    set (USE_NLP 0)
-    return()
-endif ()
-
-set (USE_BZIP2 1)
-set (BZIP2_INCLUDE_DIR "${ClickHouse_SOURCE_DIR}/contrib/bzip2")
-set (BZIP2_LIBRARY bzip2)
-
-message (STATUS "Using bzip2=${USE_BZIP2}: ${BZIP2_INCLUDE_DIR} : ${BZIP2_LIBRARY}")

cmake/find/parquet.cmake

@@ -86,7 +86,7 @@ if(NOT USE_INTERNAL_PARQUET_LIBRARY)
             add_library(imported_arrow_deps STATIC ${ARROW_OTHER_OBJS})
 
             set(ARROW_LIBRARY ${ARROW_STATIC_LIB}
-                imported_arrow_deps ${THRIFT_LIBRARY} ${UTF8_PROC_LIBRARY} ${BZIP2_LIBRARIES} ${SNAPPY_LIBRARY})
+                imported_arrow_deps ${THRIFT_LIBRARY} ${UTF8_PROC_LIBRARY} bzip2 ${SNAPPY_LIBRARY})
         else()
             message(WARNING "Using external static Arrow does not always work. "
                     "Could not find arrow_bundled_dependencies.a. If compilation fails, "
@@ -100,7 +100,7 @@ if(NOT USE_INTERNAL_PARQUET_LIBRARY)
         set(PARQUET_LIBRARY ${PARQUET_SHARED_LIB})
     endif()
 
-    if(ARROW_INCLUDE_DIR AND ARROW_LIBRARY AND PARQUET_INCLUDE_DIR AND PARQUET_LIBRARY AND THRIFT_LIBRARY AND UTF8_PROC_LIBRARY AND BZIP2_FOUND)
+    if(ARROW_INCLUDE_DIR AND ARROW_LIBRARY AND PARQUET_INCLUDE_DIR AND PARQUET_LIBRARY AND THRIFT_LIBRARY AND UTF8_PROC_LIBRARY)
         set(USE_PARQUET 1)
         set(EXTERNAL_PARQUET_FOUND 1)
     else()

contrib/CMakeLists.txt

@@ -59,6 +59,7 @@ add_subdirectory (croaring-cmake)
 add_subdirectory (zstd-cmake)
 add_subdirectory (zlib-ng-cmake)
 add_subdirectory (rocksdb-cmake)
+add_subdirectory (bzip2-cmake)
 
 # TODO: refactor the contrib libraries below this comment.
 
@@ -277,10 +278,6 @@ if (USE_NLP)
     add_subdirectory(lemmagen-c-cmake)
 endif()
 
-if (USE_BZIP2)
-    add_subdirectory(bzip2-cmake)
-endif()
-
 if (USE_SQLITE)
     add_subdirectory(sqlite-cmake)
 endif()

contrib/bzip2-cmake/CMakeLists.txt

@@ -1,3 +1,9 @@
+option(ENABLE_BZIP2 "Enable bzip2 compression support" ${ENABLE_LIBRARIES})
+if (NOT ENABLE_BZIP2)
+    message (STATUS "bzip2 compression disabled")
+    return()
+endif()
+
 set(BZIP2_SOURCE_DIR "${ClickHouse_SOURCE_DIR}/contrib/bzip2")
 set(BZIP2_BINARY_DIR "${ClickHouse_BINARY_DIR}/contrib/bzip2")
 
@@ -18,6 +24,10 @@ configure_file (
     "${BZIP2_BINARY_DIR}/bz_version.h"
 )
 
-add_library(bzip2 ${SRCS})
-
-target_include_directories(bzip2 PUBLIC "${BZIP2_SOURCE_DIR}" "${BZIP2_BINARY_DIR}")
+add_library(_bzip2 ${SRCS})
+add_library(ch_contrib::bzip2 ALIAS _bzip2)
+# To avoid -Wreserved-id-macro we use SYSTEM:
+#
+#     clickhouse/contrib/bzip2/bzlib.h:23:9: error: macro name is a reserved identifier [-Werror,-Wreserved-id-macro]
+#     #define _BZLIB_H
+target_include_directories(_bzip2 SYSTEM BEFORE PUBLIC "${BZIP2_SOURCE_DIR}" "${BZIP2_BINARY_DIR}")

src/CMakeLists.txt

@@ -534,9 +534,8 @@ if (USE_NLP)
     dbms_target_link_libraries (PUBLIC lemmagen)
 endif()
 
-if (USE_BZIP2)
-    target_link_libraries (clickhouse_common_io PRIVATE ${BZIP2_LIBRARY})
-    target_include_directories (clickhouse_common_io SYSTEM BEFORE PRIVATE ${BZIP2_INCLUDE_DIR})
+if (TARGET ch_contrib::bzip2)
+    target_link_libraries (clickhouse_common_io PRIVATE ch_contrib::bzip2)
 endif()
 
 if(USE_SIMDJSON)

src/configure_config.cmake

@@ -1,3 +1,6 @@
 if (TARGET ch_contrib::rocksdb)
     set(USE_ROCKSDB 1)
 endif()
+if (TARGET ch_contrib::bzip2)
+    set(USE_BZIP2 1)
+endif()