buildroot/package/foot/0001-box-drawings-handle-architecture-with-soft-float.patch

From 9443ac7e2937bb4f26cf44c73bb8150860c5df45 Mon Sep 17 00:00:00 2001
From: Thomas Bonnefille <thomas.bonnefille@bootlin.com>
Date: Tue, 4 Feb 2025 09:48:13 +0100
Subject: [PATCH] box-drawings: handle architecture with soft-float

Currently, architecture using soft-floats doesn't support instructions
FE_INVALID, FE_DIVBYZERO, FE_OVERFLOW and FE_UNDERFLOW and so building
on those architectures results with a build error.
As the sqrt math function should set errno to EDOM if an error occurs,
fetestexcept shouldn't be mandatory.

This commit removes the float environment error handling.

Upstream: https://codeberg.org/dnkl/foot/commit/9443ac7e2937bb4f26cf44c73bb8150860c5df45
Signed-off-by: Thomas Bonnefille <thomas.bonnefille@bootlin.com>
---
 box-drawing.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/box-drawing.c b/box-drawing.c
index 1c613051..421ff54d 100644
--- a/box-drawing.c
+++ b/box-drawing.c
@@ -1462,14 +1462,12 @@ draw_box_drawings_light_arc(struct buf *buf, char32_t wc)
      */
     for (double i = y_min*16; i <= y_max*16; i++) {
         errno = 0;
-        feclearexcept(FE_ALL_EXCEPT);
 
         double y = i / 16.;
         double x = circle_hemisphere * sqrt(c_r2 - (y - c_y) * (y - c_y)) + c_x;
 
         /* See math_error(7) */
-        if (errno != 0 ||
-            fetestexcept(FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW))
+        if (errno != 0)
         {
             continue;
         }
-- 
2.48.1