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Ubuntu 14.04 has miniupnpc 1.6.3 REGEX was failing because the string was empty, causing cmake to error and not generate a Makefile. This allows systems with older versions of miniupnpc to fall back to the statically linked version in externals.
19 lines
1,000 B
CMake
19 lines
1,000 B
CMake
# This file only works for MiniUPnPc 1.7 or later (it requires MINIUPNPC_API_VERSION).
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# TODO Find out if any distribution still ships with /usr/include/miniupnpc.h (i.e. not in a separate directory).
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find_path(MINIUPNPC_INCLUDE_DIR miniupnpc.h PATH_SUFFIXES miniupnpc)
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find_library(MINIUPNPC_LIBRARY miniupnpc)
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if(MINIUPNPC_INCLUDE_DIR)
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file(STRINGS "${MINIUPNPC_INCLUDE_DIR}/miniupnpc.h" MINIUPNPC_API_VERSION_STR REGEX "^#define[\t ]+MINIUPNPC_API_VERSION[\t ]+[0-9]+")
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if(MINIUPNPC_API_VERSION_STR)
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string(REGEX REPLACE "^#define[\t ]+MINIUPNPC_API_VERSION[\t ]+([0-9]+)" "\\1" MINIUPNPC_API_VERSION ${MINIUPNPC_API_VERSION_STR})
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endif()
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endif()
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(MINIUPNPC DEFAULT_MSG MINIUPNPC_INCLUDE_DIR MINIUPNPC_LIBRARY MINIUPNPC_API_VERSION)
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set(MINIUPNPC_LIBRARIES ${MINIUPNPC_LIBRARY})
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set(MINIUPNPC_INCLUDE_DIRS ${MINIUPNPC_INCLUDE_DIR})
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mark_as_advanced(MINIUPNPC_INCLUDE_DIR MINIUPNPC_LIBRARY MINIUPNPC_API_VERSION_STR)
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