d949b4e26b
Move supported host architectures under BR2_PACKAGE_HOST_PROTOBUF_ARCH_SUPPORTS and propagate the reverse dependency. Add additional supported host architectures based on current src/google/protobuf/stubs/platform_macros.h Signed-off-by: James Hilliard <james.hilliard1@gmail.com> Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
60 lines
2.2 KiB
Plaintext
60 lines
2.2 KiB
Plaintext
# See src/google/protobuf/stubs/platform_macros.h for supported archs.
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#
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# On PowerPC, the __atomic_*() built-ins for 1-byte, 2-byte and 4-byte
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# types are available built-in. However, the __atomic_*() built-ins for
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# 8-byte types is implemented via libatomic, so only available since gcc
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# 4.8.
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#
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# In Buildroot, to simplify things, we've decided to simply require gcc
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# 4.8 as soon as the architectures has at least one __atomic_*() built-in
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# variant that requires libatomic.
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#
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# Since protobuf most likely only uses the 1, 2 and 4-byte variants, it
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# *could* technically build with gcc 4.7. This is probably not a big deal,
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# and we can live with requiring gcc 4.8 on PowerPC to build protobuf.
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#
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# host-protobuf only builds on certain architectures
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config BR2_PACKAGE_HOST_PROTOBUF_ARCH_SUPPORTS
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bool
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default y if BR2_HOSTARCH = "aarch64"
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default y if BR2_HOSTARCH = "arm"
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default y if BR2_HOSTARCH = "mips"
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default y if BR2_HOSTARCH = "mipsel"
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default y if BR2_HOSTARCH = "powerpc"
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default y if BR2_HOSTARCH = "powerpc64"
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default y if BR2_HOSTARCH = "powerpc64le"
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default y if BR2_HOSTARCH = "sparc"
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default y if BR2_HOSTARCH = "sparc64"
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default y if BR2_HOSTARCH = "x86"
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default y if BR2_HOSTARCH = "x86_64"
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config BR2_PACKAGE_PROTOBUF_ARCH_SUPPORTS
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bool
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default y if BR2_arm
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default y if BR2_i386
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default y if BR2_mipsel
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default y if BR2_x86_64
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default y if BR2_sparc64
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default y if BR2_TOOLCHAIN_HAS_ATOMIC
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depends on BR2_PACKAGE_HOST_PROTOBUF_ARCH_SUPPORTS
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depends on BR2_USE_MMU # fork()
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config BR2_PACKAGE_PROTOBUF
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bool "protobuf"
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depends on BR2_INSTALL_LIBSTDCPP
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depends on BR2_TOOLCHAIN_HAS_THREADS
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depends on BR2_PACKAGE_PROTOBUF_ARCH_SUPPORTS
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depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_8 # C++11
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depends on !BR2_STATIC_LIBS
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help
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Protocol buffers are Google's language-neutral,
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platform-neutral, extensible mechanism for serializing
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structured data.
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https://developers.google.com/protocol-buffers
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comment "protobuf needs a toolchain w/ C++, threads, dynamic library, gcc >= 4.8"
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depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS \
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|| BR2_STATIC_LIBS || !BR2_TOOLCHAIN_GCC_AT_LEAST_4_8
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depends on BR2_PACKAGE_PROTOBUF_ARCH_SUPPORTS
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