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1a7727a254
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/ |
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| .. | ||
| bash-completion | ||
| benchmark | ||
| client | ||
| compressor | ||
| copier | ||
| diagnostics | ||
| disks | ||
| extract-from-config | ||
| format | ||
| git-import | ||
| install | ||
| keeper | ||
| keeper-converter | ||
| library-bridge | ||
| local | ||
| obfuscator | ||
| odbc-bridge | ||
| self-extracting | ||
| server | ||
| static-files-disk-uploader | ||
| su | ||
| clickhouse-split-helper | ||
| CMakeLists.txt | ||
| config_tools.h.in | ||
| embed_binary.S.in | ||
| main.cpp | ||