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# - Try to find readline include dirs and libraries
#
# Usage of this module as follows:
#
# find_package(Readline)
#
# Variables used by this module, they can change the default behaviour and need
# to be set before calling find_package:
#
# Readline_ROOT_DIR Set this variable to the root installation of
# readline if the module has problems finding the
# proper installation path.
#
# Variables defined by this module:
#
# READLINE_FOUND System has readline, include and lib dirs found
# Readline_INCLUDE_DIR The readline include directories.
# Readline_LIBRARY The readline library.
find_path(Readline_ROOT_DIR
NAMES include/readline/readline.h
)
find_path(Readline_INCLUDE_DIR
NAMES readline/readline.h
HINTS ${Readline_ROOT_DIR}/include
)
find_library(Readline_LIBRARY
NAMES readline
HINTS ${Readline_ROOT_DIR}/lib
)
set(Readline_VERSION Readline_VERSION-NOTFOUND)
if (Readline_INCLUDE_DIR)
if(EXISTS "${Readline_INCLUDE_DIR}/readline/readline.h")
file(STRINGS "${Readline_INCLUDE_DIR}/readline/readline.h" _Readline_HEADER_CONTENTS REGEX "#define RL_VERSION_[A-Z]+")
string(REGEX REPLACE ".*#define RL_VERSION_MAJOR[ \t]+([0-9]+).*" "\\1" Readline_VERSION_MAJOR "${_Readline_HEADER_CONTENTS}")
string(REGEX REPLACE ".*#define RL_VERSION_MINOR[ \t]+([0-9]+).*" "\\1" Readline_VERSION_MINOR "${_Readline_HEADER_CONTENTS}")
set(Readline_VERSION ${Readline_VERSION_MAJOR}.${Readline_VERSION_MINOR})
unset(_Readline_HEADER_CONTENTS)
endif()
endif()
find_package_handle_standard_args(Readline FOUND_VAR Readline_FOUND
REQUIRED_VARS Readline_LIBRARY Readline_INCLUDE_DIR Readline_ROOT_DIR
VERSION_VAR Readline_VERSION)
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