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CMake

# - Find libcrypt
# Find the libcrypt includes and the libcrypt libraries
# This module defines
# LIBCRYPT_INCLUDE_DIR, root crypt include dir. Include crypt with crypt.h
# LIBCRYPT_LIBRARY, the path to libcrypt
# LIBCRYPT_FOUND, whether libcrypt was found
if( CMAKE_SYSTEM MATCHES "FreeBSD" )
# FreeBSD has crypt(3) declared in unistd.h, which lives in
# libc; the libcrypt found here is not used.
find_path( CRYPT_INCLUDE_DIR NAMES unistd.h )
add_definitions( -DNO_CRYPT_H )
else()
find_path( CRYPT_INCLUDE_DIR
NAMES crypt.h
HINTS
${CMAKE_INSTALL_INCLUDEDIR}
NO_CACHE
)
endif()
find_library( CRYPT_LIBRARIES
NAMES crypt
HINTS
${CMAKE_INSTALL_LIBDIR}
)
include( FindPackageHandleStandardArgs )
find_package_handle_standard_args(
Crypt
REQUIRED_VARS CRYPT_LIBRARIES CRYPT_INCLUDE_DIR
)
mark_as_advanced( CRYPT_INCLUDE_DIR CRYPT_LIBRARIES )