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https://github.com/GerbilSoft/rom-properties.git
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6b01883f1a
NETTLE_FOUND may be used to determine if libnettle should be
linked to other libraries and/or executables.
This fixes a regression from commit 22189ea4db.
([cmake] CheckNettle2or3.cmake: Convert the macro to a function.)
29 lines
1.2 KiB
CMake
29 lines
1.2 KiB
CMake
# Check for Nettle v2 or v3.
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# If either version is found, HAVE_NETTLE will be set.
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# If Nettle v3 is found, HAVE_NETTLE_3 will be set.
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FUNCTION(CHECK_NETTLE_2_OR_3)
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FIND_PACKAGE(NETTLE)
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SET(HAVE_NETTLE ${NETTLE_FOUND})
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SET(HAVE_NETTLE ${NETTLE_FOUND} PARENT_SCOPE)
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SET(NETTLE_FOUND ${NETTLE_FOUND} PARENT_SCOPE)
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IF(HAVE_NETTLE)
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# Check if this is Nettle 3.x.
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# Nettle 3.1 added version.h, which isn't available
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# in older verisons, so we can't simply check that.
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INCLUDE(CheckSymbolExists)
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SET(CMAKE_REQUIRED_INCLUDES ${NETTLE_INCLUDE_DIRS})
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SET(CMAKE_REQUIRED_LIBRARIES ${NETTLE_LIBRARY})
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CHECK_SYMBOL_EXISTS(aes128_set_decrypt_key "nettle/aes.h" HAVE_NETTLE_3)
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IF(HAVE_NETTLE_3)
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# Check for Nettle versioning symbols.
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# Nettle 3.1 added version.h.
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CHECK_SYMBOL_EXISTS(NETTLE_VERSION_MAJOR "nettle/version.h" HAVE_NETTLE_VERSION_H)
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CHECK_SYMBOL_EXISTS(nettle_version_major "nettle/version.h" HAVE_NETTLE_VERSION_FUNCTIONS)
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ENDIF(HAVE_NETTLE_3)
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ELSE(HAVE_NETTLE)
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# Disable decryption.
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SET(ENABLE_DECRYPTION OFF CACHE INTERNAL "Enable decryption for newer ROM and disc images." FORCE)
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ENDIF(HAVE_NETTLE)
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ENDFUNCTION(CHECK_NETTLE_2_OR_3)
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