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if(NOT READLINE_INCLUDE_DIR OR NOT READLINE_LIBRARY)
find_path(READLINE_INCLUDE_DIR readline/readline.h)
find_library(READLINE_LIBRARY NAMES readline)
endif()
if(APPLE)
# look in homebrew paths
execute_process(COMMAND brew --prefix readline OUTPUT_VARIABLE READLINE_BREW_PREFIX)
if (READLINE_BREW_PREFIX)
string(STRIP ${READLINE_BREW_PREFIX} READLINE_BREW_PREFIX)
message(STATUS "Found a homebrew install of readline ${READLINE_BREW_PREFIX}")
set(READLINE_INCLUDE_DIR ${READLINE_BREW_PREFIX}/include)
set(READLINE_LIBRARY ${READLINE_BREW_PREFIX}/lib/libreadline.dylib)
endif()
endif()
if(WIN32)
find_path(READLINE_INCLUDE_DIR
NAMES readline/readline.h
HINTS "${CMAKE_SOURCE_DIR}/../${CMAKE_LIBRARY_ARCHITECTURE}/readline/include"
"$ENV{ProgramW6432}/GnuWin32/include"
"$ENV{ProgramFiles}/GnuWin32/include"
)
find_library(READLINE_LIBRARY
NAMES readline6 readline5 readline libreadline6 libreadline5 libreadline
HINTS "${CMAKE_SOURCE_DIR}/../${CMAKE_LIBRARY_ARCHITECTURE}/readline/lib"
"${CMAKE_SOURCE_DIR}/../${CMAKE_LIBRARY_ARCHITECTURE}/readline/bin"
"$ENV{ProgramW6432}/GnuWin32/lib"
"$ENV{ProgramW6432}/GnuWin32/bin"
"$ENV{ProgramFiles}/GnuWin32/lib"
"$ENV{ProgramFiles}/GnuWin32/bin"
)
find_path(READLINE_LIBRARY_DIR
NAMES readline5.dll libreadline5.dll readline6.dll libreadline6.dll readline.dll libreadline.dll
HINTS "${CMAKE_SOURCE_DIR}/../${CMAKE_LIBRARY_ARCHITECTURE}/readline/bin"
"$ENV{ProgramW6432}/GnuWin32/bin"
"$ENV{ProgramFiles}/GnuWin32/bin"
PATH_SUFFIXES "bin"
)
endif()
if (READLINE_INCLUDE_DIR AND READLINE_LIBRARY)
set(READLINE_FOUND TRUE)
endif()
if (READLINE_INCLUDE_DIR AND EXISTS "${READLINE_INCLUDE_DIR}/readline/readline.h")
file(STRINGS "${READLINE_INCLUDE_DIR}/readline/readline.h"
READLINE_MAJOR_VERSION
REGEX "^#define RL_VERSION_MAJOR.*$")
file(STRINGS "${READLINE_INCLUDE_DIR}/readline/readline.h"
READLINE_MINOR_VERSION
REGEX "^#define RL_VERSION_MINOR.*$")
string(REGEX REPLACE "^.*RL_VERSION_MAJOR.*([0-9]+).*$"
"\\1"
READLINE_MAJOR_VERSION
"${READLINE_MAJOR_VERSION}")
string(REGEX REPLACE "^.*RL_VERSION_MINOR.*([0-9]+).*$"
"\\1"
READLINE_MINOR_VERSION
"${READLINE_MINOR_VERSION}")
if(READLINE_MAJOR_VERSION)
set(READLINE_VERSION "${READLINE_MAJOR_VERSION}.${READLINE_MINOR_VERSION}")
else()
set(READLINE_VERSION "(unknown)")
endif()
endif ()
if (READLINE_FOUND)
if (Readline_FIND_VERSION VERSION_GREATER READLINE_VERSION)
message(STATUS "Found version ${READLINE_VERSION} of GNU Readline at ${READLINE_LIBRARY}, but version ${Readline_FIND_VERSION} required")
unset(READLINE_FOUND)
else()
if (NOT READLINE_FIND_QUIETLY)
message(STATUS "Found GNU Readline version ${READLINE_VERSION}: ${READLINE_LIBRARY}")
endif ()
endif ()
else ()
if (READLINE_FIND_REQUIRED)
message(FATAL_ERROR "Could not find GNU Readline")
endif ()
endif ()
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