CXX = clang++
CXXFLAGS ?= ${CXX_DEBUG} -Wall -Wextra -Wno-unused-parameter -pedantic -Wno-misleading-indentation
DEFINES = -D_GLIBCXX_USE_NANOSLEEP=1
INCFLAGS = -I/usr/include/ -I/usr/local/include/
LDFLAGS = ${LD_DEBUG} -Wl,-rpath,/usr/local/lib -L/usr/local/lib
LDLIBS = -lcrypto -lssl -lz -lpthread -lboost_system -lboost_program_options

## NOTE: NEEDED_CXXFLAGS is here so that custom CXXFLAGS can be specified at build time
## **without** overwriting the CXXFLAGS which we need in order to build.
## For example, when adding 'hardening flags' to the build
## (e.g. -fstack-protector-strong -Wformat -Werror=format-security), we do not want to remove
## -std=c++11. If you want to remove this variable please do so in a way that allows setting
## custom FLAGS to work at build-time.
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
	NEEDED_CXXFLAGS = -std=c++20
else
	NEEDED_CXXFLAGS = -std=c++17
endif