Commit Graph

7 Commits

Author SHA1 Message Date
Robert Schulze
1a7727a254
Prefix overridden add_executable() command with "clickhouse_"
A simple HelloWorld program with zero includes except iostream triggers
a build of ca. 2000 source files. The reason is that ClickHouse's
top-level CMakeLists.txt overrides "add_executable()" to link all
binaries against "clickhouse_new_delete". This links against
"clickhouse_common_io", which in turn has lots of 3rd party library
dependencies ... Without linking "clickhouse_new_delete", the number of
compiled files for "HelloWorld" goes down to ca. 70.

As an example, the self-extracting-executable needs none of its current
dependencies but other programs may also benefit.

In order to restore access to the original "add_executable()", the
overriding version is now prefixed. There is precedence for a
"clickhouse_" prefix (as opposed to "ch_"), for example
"clickhouse_split_debug_symbols". In general prefixing makes sense also
because overriding CMake commands relies on undocumented behavior and is
considered not-so-great practice (*).

(*) https://crascit.com/2018/09/14/do-not-redefine-cmake-commands/
2022-07-11 19:36:18 +02:00
Ivan
47ad338cb2
Refactor CMake build files (#11390)
* Get rid of lib_name.cmake
* Refactor Boost and HyperScan libraries
* Refactor lz4
* Fix build with xxHash
2020-06-09 13:54:49 +03:00
Alexey Milovidov
8abe0990b2 Remove "clickhouse_compression" library because it is not a library (cyclic dependency via IDataType) 2019-07-10 00:43:04 +03:00
proller
0c78ef8573 Fix cyclic lib depend (make clickhouse_compression lib) 2018-12-28 20:27:53 +03:00
proller
1d40c2c871 Better link and deps (#3631)
* try fix 1

* Better deps

* fix

* fix

* fix

* Update CMakeLists.txt

* Update CMakeLists.txt

* fix

* fix

* fix

* disable old

* Update find_odbc.cmake
2018-11-21 22:20:27 +03:00
proller
6ff1968196 Compile and likk optimize and fixes 2017-11-24 21:08:01 +03:00
Alexey Milovidov
e154af029d Added a tool to check correctness of .mrk file [#CLICKHOUSE-2841]. 2017-02-17 00:38:25 +03:00