From 09d36a63ef38f0aa4501998f01ae8faf118f6bd6 Mon Sep 17 00:00:00 2001 From: Carlo Wood Date: Wed, 2 Nov 2016 12:29:23 +0100 Subject: [PATCH] Revert to using __builtin_isfinite for QuRT. See discussion in https://github.com/PX4/Firmware/issues/5756 --- src/platforms/px4_defines.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/src/platforms/px4_defines.h b/src/platforms/px4_defines.h index 56081e8d38..4da7914403 100644 --- a/src/platforms/px4_defines.h +++ b/src/platforms/px4_defines.h @@ -180,9 +180,11 @@ using ::isfinite; # define PX4_TICKS_PER_SEC 1000L # define SIOCDEVPRIVATE 999999 -// HEXAGON defines isfinite() erroneously as a macro even for C++. +// HEXAGON's isfinite() is erroneously defined as a macro even for C++, +// using std::isfinite (using ::isfinite) which is a function, but which +// appears to be broken because of undefined symbols (ie, _Dtest (C linkage)). # undef PX4_ISFINITE -# define PX4_ISFINITE(x) isfinite(x) +# define PX4_ISFINITE(x) __builtin_isfinite(x) #else // __PX4_QURT