libcryfs/vendor/scrypt/CMakeLists.txt

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include(ExternalProject)
project (scrypt C)
# This builds the original scrypt source using configure & make. We don't use their build result,
# but we use the config.h it creates somewhere on the way (see target_compile_options below).
string(TOUPPER "${CMAKE_BUILD_TYPE}" BUILDTYPE)
set(SCRYPT_CFLAGS "${CMAKE_C_FLAGS} ${CMAKE_C_FLAGS_${BUILDTYPE}}")
# Add a default location for homebrew-installed openssl on Mac OS X to include search path
if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
set(SCRYPT_CFLAGS "${SCRYPT_CFLAGS} -I/usr/local/opt/openssl/include")
endif(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
ExternalProject_Add(scrypt_original
SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/scrypt-1.2.0/scrypt
CONFIGURE_COMMAND /usr/bin/env CC=${CMAKE_C_COMPILER} CFLAGS=${SCRYPT_CFLAGS} ${CMAKE_CURRENT_SOURCE_DIR}/scrypt-1.2.0/scrypt/configure --prefix=${CMAKE_BINARY_DIR}/vendor/scrypt/
PREFIX ${CMAKE_BINARY_DIR}/vendor/scrypt/
BUILD_COMMAND ${MAKE}
)
add_library(${PROJECT_NAME} STATIC
${CMAKE_CURRENT_SOURCE_DIR}/scrypt-1.2.0/scrypt/lib/crypto/crypto_scrypt.c
${CMAKE_CURRENT_SOURCE_DIR}/scrypt-1.2.0/scrypt/lib/crypto/crypto_scrypt_smix.c
${CMAKE_CURRENT_SOURCE_DIR}/scrypt-1.2.0/scrypt/libcperciva/util/warnp.c
${CMAKE_CURRENT_SOURCE_DIR}/scrypt-1.2.0/scrypt/libcperciva/util/insecure_memzero.c
${CMAKE_CURRENT_SOURCE_DIR}/scrypt-1.2.0/scrypt/libcperciva/alg/sha256.c
${CMAKE_CURRENT_SOURCE_DIR}/scrypt-1.2.0/scrypt/libcperciva/cpusupport/cpusupport_x86_aesni.c
${CMAKE_CURRENT_SOURCE_DIR}/scrypt-1.2.0/scrypt/libcperciva/cpusupport/cpusupport_x86_sse2.c
)
target_link_libraries(${PROJECT_NAME}
${CMAKE_CURRENT_BINARY_DIR}/src/scrypt_original-build/libscrypt_sse2.a
${CMAKE_CURRENT_BINARY_DIR}/src/scrypt_original-build/libcperciva_aesni.a
)
target_include_directories(${PROJECT_NAME} PRIVATE
${CMAKE_CURRENT_SOURCE_DIR}/scrypt-1.2.0/scrypt
${CMAKE_CURRENT_SOURCE_DIR}/scrypt-1.2.0/scrypt/libcperciva/cpusupport
${CMAKE_CURRENT_SOURCE_DIR}/scrypt-1.2.0/scrypt/libcperciva/alg
${CMAKE_CURRENT_SOURCE_DIR}/scrypt-1.2.0/scrypt/libcperciva/util
)
target_compile_options(${PROJECT_NAME} PRIVATE
-DCONFIG_H_FILE=\"${CMAKE_CURRENT_BINARY_DIR}/src/scrypt_original-build/config.h\"
-DCPUSUPPORT_CONFIG_FILE=\"${CMAKE_CURRENT_BINARY_DIR}/src/scrypt_original-build/cpusupport-config.h\"
)
add_dependencies(${PROJECT_NAME} scrypt_original)
target_include_directories(${PROJECT_NAME} SYSTEM INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/scrypt-1.2.0)