From fe614c6069e8569048778ce79bad82a5ffd0e282 Mon Sep 17 00:00:00 2001
From: Stefan Weil <sw@weilnetz.de>
Date: Wed, 3 Mar 2021 22:56:07 +0100
Subject: [PATCH] Enable less FP exceptions for clang compiler when running
 tesseract

Signed-off-by: Stefan Weil <sw@weilnetz.de>
---
 src/api/tesseractmain.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/api/tesseractmain.cpp b/src/api/tesseractmain.cpp
index 543d59938..edf6637e1 100644
--- a/src/api/tesseractmain.cpp
+++ b/src/api/tesseractmain.cpp
@@ -622,7 +622,12 @@ static void PreloadRenderers(
 int main(int argc, char** argv) {
 #if defined(__USE_GNU)
   // Raise SIGFPE.
+#if defined(__clang__)
+  // clang creates code which causes some FP exceptions, so don't enable those.
+  feenableexcept(FE_DIVBYZERO);
+#else
   feenableexcept(FE_DIVBYZERO | FE_OVERFLOW | FE_INVALID);
+#endif
 #endif
   const char* lang = nullptr;
   const char* image = nullptr;