From 0efe2864048439507ddceda1d82d2159ad171f0d Mon Sep 17 00:00:00 2001
From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Thu, 7 Apr 2022 18:51:20 -0700
Subject: [PATCH] gvcolor: remove open coded 'fmax'

---
 cmd/tools/CMakeLists.txt | 1 +
 cmd/tools/gvcolor.c      | 4 ++--
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/cmd/tools/CMakeLists.txt b/cmd/tools/CMakeLists.txt
index 170835e8c..7726e67af 100644
--- a/cmd/tools/CMakeLists.txt
+++ b/cmd/tools/CMakeLists.txt
@@ -227,6 +227,7 @@ target_include_directories(gvcolor SYSTEM PRIVATE
 target_link_libraries(gvcolor
   cgraph
   ingraphs
+  ${MATH_LIB}
 )
 
 tool_defaults(gvcolor)
diff --git a/cmd/tools/gvcolor.c b/cmd/tools/gvcolor.c
index 5e1e1e696..263e406f3 100644
--- a/cmd/tools/gvcolor.c
+++ b/cmd/tools/gvcolor.c
@@ -22,6 +22,7 @@
 #include <assert.h>
 #include <cgraph/cgraph.h>
 #include <cgraph/exit.h>
+#include <math.h>
 #include <stdlib.h>
 typedef struct Agnodeinfo_t {
     Agrec_t h;
@@ -155,8 +156,7 @@ static void color(Agraph_t * g)
 	p = agget(n, "pos");
 	sscanf(p, "%lf,%lf", &x, &y);
 	ND_relrank(n) = (LR ? x : y);
-	if (maxrank < ND_relrank(n))
-	    maxrank = ND_relrank(n);
+	maxrank = fmax(maxrank, ND_relrank(n));
     }
     if (LR != Forward)
 	for (i = 0; i < nnodes; i++) {
-- 
2.40.0