use gexpr instead expr

This commit is contained in:
orignal 2024-09-04 13:28:34 -04:00
parent 2ee5af0c06
commit cab671e177

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@ -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