#------------------------------------------------------------------------------
# NetHack 3.7  compiler.2020 $NHDT-Date: 1597332785 2020/08/13 15:33:05 $  $NHDT-Branch: NetHack-3.7 $

# compiler flags:  CCFLAGS is used to construct a value for CFLAGS with
#	various -I, -D, and -W settings appended below;
#	these are the settings of most interest for an end-user build
#	(clang doesn't support '-Og', gcc needs 4.x or later)
CCFLAGS = -g
#CCFLAGS = -g -Og
#CCFLAGS = -O2
#	Note: this is not the usual 'CFLAGS' which is used in default
#	rules for compiling C code; specifying a value for that on the
#	'make' command line should be avoided.

CCISCLANG := $(shell echo `$(CC) --version` | grep clang)
ifeq "$(CCISCLANG)" ""
CXX=g++ -std=gnu++11
else
CXX=clang++ -std=gnu++11
endif
# if you want to override the compiler detection just carried out
# uncomment one of the following pairs as desired.
#CC= gcc
#CXX= g++ -std-gnu++11
#
#CC= clang
#CXX=clang++ -std=gnu++11

CFLAGS=$(CCFLAGS) -I../include -DNOTPARMDECL

ifndef WANT_WIN_QT
ifndef WANT_LIBNH
#	these are normally used when compiling nethack's core
#	but -ansi forces -std=c90 for C or -std=c++98 for C++;
#	win/Qt/qt_*.cpp compiled with C++98 semantics trigger
#In file included from .../qt5/include/QtCore/qglobal.h:105:
#.../qt5/include/QtCore/qcompilerdetection.h:561:6:
#  error Qt requires a C++11 compiler and yours does not seem to be that.
#	so we suppress -ansi when the build includes Qt
#CFLAGS+=-ansi -Wno-long-long
#CFLAGS+=-std=c99
#
#LIBNH's winshim requires C99 for the way it is currently coded
endif
endif

CFLAGS+=-Wall -Wextra -Wno-missing-field-initializers -Wimplicit \
	-Wreturn-type -Wunused -Wformat -Wswitch -Wshadow -Wwrite-strings
CFLAGS+=-pedantic
CFLAGS+=-DGCC_WARN
CFLAGS+=-Wimplicit-function-declaration
CFLAGS+=-Wimplicit-int
CFLAGS+=-Wmissing-declarations
CFLAGS+=-Wmissing-prototypes
ifeq "$(CCISCLANG)" ""
#gcc-specific here
CFLAGS+=-Wmissing-parameter-type
# get the version of gcc
GCCGTEQ9 := $(shell expr `$(CC) -dumpversion | cut -f1 -d.` \>= 9)
ifeq "$(GCCGTEQ9)" "1"
# flags present in gcc version greater than or equal to 9 can go here
#CFLAGS+=-Wno-format-overflow
endif  #gcc version greater than or equal to 9
else   # clang
# clang-specific here
endif  # clang
# As of LLVM build 2336.1.00, this gives dozens of spurious messages, so
# leave it out by default.
#CFLAGS+=-Wunreachable-code
#
# Can't use these; NetHack uses old-style-definitions
#CFLAGS+=-Wold-style-definition
#CFLAGS+=-Wstrict-prototypes

#end of compiler.2020
#------------------------------------------------------------------------------