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hackney c_src CMake FindErlang.cmake
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c_src/CMake/FindErlang.cmake

# Find Erlang installation for NIF compilation
# Sets:
# ERLANG_RUNTIME - path to erl
# ERLANG_COMPILE - path to erlc
# ERLANG_EI_PATH - path to erl_interface
# ERLANG_ERTS_PATH - path to erts
# ERLANG_EI_INCLUDE_PATH - include path for erl_interface
# ERLANG_EI_LIBRARY_PATH - library path for erl_interface
# ERLANG_ERTS_INCLUDE_PATH - include path for erts (contains erl_nif.h)
# ERLANG_ERTS_LIBRARY_PATH - library path for erts
SET(ERLANG_BIN_PATH
$ENV{ERLANG_HOME}/bin
/opt/bin
/sw/bin
/usr/bin
/usr/local/bin
/opt/local/bin
/opt/homebrew/bin
)
FIND_PROGRAM(ERLANG_RUNTIME
NAMES erl
PATHS ${ERLANG_BIN_PATH}
)
FIND_PROGRAM(ERLANG_COMPILE
NAMES erlc
PATHS ${ERLANG_BIN_PATH}
)
EXECUTE_PROCESS(COMMAND
erl -noshell -eval "io:format(\"~s\", [code:lib_dir()])" -s erlang halt
OUTPUT_VARIABLE ERLANG_OTP_LIB_DIR)
EXECUTE_PROCESS(COMMAND
erl -noshell -eval "io:format(\"~s\", [code:root_dir()])" -s erlang halt
OUTPUT_VARIABLE ERLANG_OTP_ROOT_DIR)
MESSAGE(STATUS "Using OTP lib: ${ERLANG_OTP_LIB_DIR}")
EXECUTE_PROCESS(COMMAND
erl -noshell -eval "io:format(\"~s\",[filename:basename(code:lib_dir('erl_interface'))])" -s erlang halt
OUTPUT_VARIABLE ERLANG_EI_DIR)
EXECUTE_PROCESS(COMMAND
erl -noshell -eval "io:format(\"~s\",[filename:basename(code:lib_dir('erts'))])" -s erlang halt
OUTPUT_VARIABLE ERLANG_ERTS_DIR)
MESSAGE(STATUS "Using erl_interface version: ${ERLANG_EI_DIR}")
MESSAGE(STATUS "Using erts version: ${ERLANG_ERTS_DIR}")
SET(ERLANG_EI_PATH ${ERLANG_OTP_LIB_DIR}/${ERLANG_EI_DIR})
SET(ERLANG_EI_INCLUDE_PATH ${ERLANG_OTP_LIB_DIR}/${ERLANG_EI_DIR}/include)
SET(ERLANG_EI_LIBRARY_PATH ${ERLANG_OTP_LIB_DIR}/${ERLANG_EI_DIR}/lib)
SET(ERLANG_ERTS_PATH ${ERLANG_OTP_ROOT_DIR}/${ERLANG_ERTS_DIR})
SET(ERLANG_ERTS_INCLUDE_PATH ${ERLANG_OTP_ROOT_DIR}/${ERLANG_ERTS_DIR}/include)
SET(ERLANG_ERTS_LIBRARY_PATH ${ERLANG_OTP_ROOT_DIR}/${ERLANG_ERTS_DIR}/lib)
MARK_AS_ADVANCED(
ERLANG_RUNTIME
ERLANG_COMPILE
ERLANG_EI_PATH
ERLANG_EI_INCLUDE_PATH
ERLANG_EI_LIBRARY_PATH
)