467552234d
With Microblaze gcc version <= 9.x, the build of flannel fails due to gcc bug 68485: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68485. To avoid this, the flann package has a !BR2_microblaze dependency. However, gcc bug 68485 only triggers when optimization is enabled, so we can work around the issue by passing -O0, which is what we do in other Buildroot packages to work around this bug. So, this commit passes -O0 when BR2_TOOLCHAIN_HAS_GCC_BUG_68485, and re-enables flann on Microblaze. Note that the comment was talking about gcc bug 69401, but this gcc bug is a duplicate of 68485. Since all Buildroot packages now use the reference to gcc bug 68485 and the option is named BR2_TOOLCHAIN_HAS_GCC_BUG_68485, we use this naming as well for flann. Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
26 lines
724 B
Plaintext
26 lines
724 B
Plaintext
config BR2_PACKAGE_FLANN
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bool "flann"
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depends on BR2_INSTALL_LIBSTDCPP
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depends on !BR2_STATIC_LIBS
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help
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FLANN is a library for performing fast approximate nearest
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neighbor searches in high dimensional spaces. It contains a
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collection of algorithms we found to work best for nearest
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neighbor search and a system for automatically choosing the
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best algorithm and optimum parameters depending on the
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dataset.
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http://www.cs.ubc.ca/research/flann/
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if BR2_PACKAGE_FLANN
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config BR2_PACKAGE_FLANN_EXAMPLES
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bool "flann examples"
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help
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Build and install flann example applications.
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endif
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comment "flann needs a toolchain w/ C++, dynamic library"
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depends on !BR2_INSTALL_LIBSTDCPP || BR2_STATIC_LIBS
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