ClickHouse/cmake/find_readline_edit.cmake

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CMake
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include (CMakePushCheckState)
cmake_push_check_state ()
option (ENABLE_READLINE "Enable readline" 1)
if (ENABLE_READLINE)
set (READLINE_PATHS "/usr/local/opt/readline/lib")
# First try find custom lib for macos users (default lib without history support)
find_library (READLINE_LIB NAMES readline PATHS ${READLINE_PATHS} NO_DEFAULT_PATH)
if (NOT READLINE_LIB)
find_library (READLINE_LIB NAMES readline PATHS ${READLINE_PATHS})
endif ()
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list(APPEND CMAKE_FIND_LIBRARY_SUFFIXES .so.2)
find_library (EDIT_LIB NAMES edit)
set(READLINE_INCLUDE_PATHS "/usr/local/opt/readline/include")
if (READLINE_LIB AND TERMCAP_LIBRARY)
find_path (READLINE_INCLUDE_DIR NAMES readline/readline.h PATHS ${READLINE_INCLUDE_PATHS} NO_DEFAULT_PATH)
if (NOT READLINE_INCLUDE_DIR)
find_path (READLINE_INCLUDE_DIR NAMES readline/readline.h PATHS ${READLINE_INCLUDE_PATHS})
endif ()
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if (READLINE_INCLUDE_DIR AND READLINE_LIB)
set (USE_READLINE 1)
set (LINE_EDITING_LIBS ${READLINE_LIB} ${TERMCAP_LIBRARY})
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message (STATUS "Using line editing libraries (readline): ${READLINE_INCLUDE_DIR} : ${LINE_EDITING_LIBS}")
endif ()
elseif (EDIT_LIB AND TERMCAP_LIBRARY)
find_library (CURSES_LIB NAMES curses)
find_path (READLINE_INCLUDE_DIR NAMES editline/readline.h PATHS ${READLINE_INCLUDE_PATHS})
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if (CURSES_LIB AND READLINE_INCLUDE_DIR)
set (USE_LIBEDIT 1)
set (LINE_EDITING_LIBS ${EDIT_LIB} ${CURSES_LIB} ${TERMCAP_LIBRARY})
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message (STATUS "Using line editing libraries (edit): ${READLINE_INCLUDE_DIR} : ${LINE_EDITING_LIBS}")
endif ()
endif ()
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endif ()
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if (LINE_EDITING_LIBS AND READLINE_INCLUDE_DIR)
include (CheckCXXSourceRuns)
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set (CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${LINE_EDITING_LIBS})
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set (CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES} ${READLINE_INCLUDE_DIR})
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check_cxx_source_runs ("
#include <stdio.h>
#include <readline/readline.h>
#include <readline/history.h>
int main() {
add_history(NULL);
append_history(1,NULL);
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return 0;
}
" HAVE_READLINE_HISTORY)
else ()
message (STATUS "Not using any library for line editing.")
endif ()
cmake_pop_check_state ()