From 8941516ed69145557a90794a2fb1253e373c3661 Mon Sep 17 00:00:00 2001
From: Jili Dong <Jili.Dong@noaa.gov>
Date: Tue, 19 Dec 2023 00:31:25 +0000
Subject: [PATCH] fix compiling error for gnu

---
 physics/clm_lake.f90 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/physics/clm_lake.f90 b/physics/clm_lake.f90
index 64c458a36..f58da2fa3 100644
--- a/physics/clm_lake.f90
+++ b/physics/clm_lake.f90
@@ -757,7 +757,7 @@ SUBROUTINE clm_lake_run( &
                   snowd(i)      = snodi(c)                  ! surface_snow_thickness_water_equivalent_over_ice
 
 
-                  if (icy(i) .eq. .false.) then
+                  if (.not. icy(i)) then
                      lake_freeze(i)=.true.
                   end if