From 92274cf65470be8926dbd6ff3bfa264dbf8fc309 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Piotr=20Ma=C5=9Blanka?= <piotr.maslanka@dronehub.ai>
Date: Thu, 3 Jun 2021 19:17:53 +0200
Subject: [PATCH] Update triangulation.h

Since on POWER the input of abs() is promoted to an integer, this condition always holds. This is a fix that hopefully makes it work on ppc64le.
---
 opensfm/src/geometry/triangulation.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/opensfm/src/geometry/triangulation.h b/opensfm/src/geometry/triangulation.h
index 013ad4c2a..fa4cf3632 100644
--- a/opensfm/src/geometry/triangulation.h
+++ b/opensfm/src/geometry/triangulation.h
@@ -68,7 +68,7 @@ std::pair<bool, Eigen::Matrix<T, 3, 1>> TriangulateTwoBearingsMidpointSolve(
 
   const T eps = T(1e-30);
   const T det = A.determinant();
-  if (abs(det) < eps) {
+  if ((det < eps) && (det > -eps)) {
     return std::make_pair(false, Eigen::Matrix<T, 3, 1>());
   }
   const auto lambdas = A.inverse() * b;