From 74fb936dbd49c61bf3352febd1c57a68888100d0 Mon Sep 17 00:00:00 2001
From: MinetaS <skdty87@gmail.com>
Date: Tue, 6 Dec 2022 21:32:42 +0900
Subject: [PATCH] Invoke .depend only on build targets

Add a constraint so that the dependency build only occurs when users
actually run build tasks.

This fixes a bug on some systems where gcc/g++ is not available.

closes https://github.com/official-stockfish/Stockfish/pull/4255

No functional change
---
 src/Makefile | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/Makefile b/src/Makefile
index 917bd5c0..0c98391b 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -512,7 +512,7 @@ endif
 
 ### Sometimes gcc is really clang
 ifeq ($(COMP),gcc)
-	gccversion = $(shell $(CXX) --version)
+	gccversion = $(shell $(CXX) --version 2>/dev/null)
 	gccisclang = $(findstring clang,$(gccversion))
 	ifneq ($(gccisclang),)
 		profile_make = clang-profile-make
@@ -1006,4 +1006,6 @@ icc-profile-use:
 .depend: $(SRCS)
 	-@$(CXX) $(DEPENDFLAGS) -MM $(SRCS) > $@ 2> /dev/null
 
+ifneq (, $(filter $(MAKECMDGOALS), build profile-build))
 -include .depend
+endif