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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2021-05-26 02:44:29 +0300
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2021-05-26 14:52:56 +0300
commit9fd172f496ddf3794dda45e8b7c3f713418be970 (patch)
treeb6588b770b3e48e8ee4d63e195d2f4416700987b /src/android/camera3_hal.cpp
parentbdee8833e2775c4f0968c19312650e1e889f812c (diff)
android: Fix file system library usage on gcc 7 and 8
On gcc versions older than 9, the file system library, used by the Android camera HAL configuration file parser, is implemented in a separate static library. Furthermore, on gcc 7, it's provided in the std::experimental namespace. This breaks compilation of the HAL on gcc 7, and linking on gcc 8. Fix the compilation issue by conditionally including <experimental/filesystem> and creating a namespace alias in std, and the link issue by linking to libstdc++fs on gcc versions older than 9. The inclusion of <experimental/filesystem> is a bit of a hack, and when we'll start using the file system library in another compilation unit, we should then move all this to an internal helper to abstract the compiler version. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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