25 lines
1,010 B
Text
25 lines
1,010 B
Text
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abseil-cpp>=20230115.0 used by libphonenumber fails unless C++17 is used.
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CMAKE_REQUIRED_FLAGS must not be passed globally as it effects all targets,
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including C files.
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Index: cmake/modules/FindPhonenumber.cmake
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--- cmake/modules/FindPhonenumber.cmake.orig
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+++ cmake/modules/FindPhonenumber.cmake
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@@ -53,6 +53,7 @@ unset(optupper)
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set(CMAKE_REQUIRED_DEFINITIONS ${PHONENUMBER_DEFINITIONS})
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set(CMAKE_REQUIRED_INCLUDES ${PHONENUMBER_INCLUDE_DIRS})
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+set(CMAKE_REQUIRED_FLAGS "-std=gnu++17")
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foreach(lib boost_thread-mt boost_thread)
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set(CMAKE_REQUIRED_LIBRARIES ${PHONENUMBER_LDFLAGS} -l${lib})
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CHECK_CXX_SOURCE_COMPILES("#include <phonenumbers/phonenumberutil.h>
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@@ -67,6 +68,7 @@ foreach(lib boost_thread-mt boost_thread)
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break()
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endif(phone_number_with_${lib})
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endforeach(lib)
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+unset(CMAKE_REQUIRED_FLAGS)
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if(NOT ENABLE_PHONENUMBER)
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message(FATAL_ERROR "libphonenumber cannot be used. Use -DWITH_PHONENUMBER=PATH to specify the library prefix, or -DWITH_PHONENUMBER=OFF to disable it.")
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