From cab671e177d27b5e60541d571f5bbbf21ad0077d Mon Sep 17 00:00:00 2001
From: orignal <i2porignal@yandex.ru>
Date: Wed, 4 Sep 2024 13:28:34 -0400
Subject: [PATCH] use gexpr instead expr

---
 Makefile.bsd | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile.bsd b/Makefile.bsd
index eb528799..c97527b4 100644
--- a/Makefile.bsd
+++ b/Makefile.bsd
@@ -14,7 +14,7 @@ LDLIBS = -lcrypto -lssl -lz -lpthread -lboost_system -lboost_program_options
 CXXVER := $(shell $(CXX) -dumpversion)
 ifeq (${CXXVER}, "4.2.1") # older clang always returned 4.2.1
 	$(error Compiler too old)
-else ifeq ($(shell expr match ${CXXVER} "1[6-9]"),2) # clang 16 - 19
+else ifeq ($(shell gexpr match ${CXXVER} "1[6-9]"),2) # clang 16 - 19
 	NEEDED_CXXFLAGS = -std=c++20
 else
 	NEEDED_CXXFLAGS = -std=c++17