#------------------------------------------------------------------------------
# NetHack 3.7  compiler.370 $NHDT-Date: 1637992237 2021/11/27 05:50:37 $  $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.

#If you want to force use of one particular set of compilers, do it
#here, ahead of the detection, so that the detection will match your
#choice and set variables CCISCLANG, GCCGTEQ, CLANGPPGTEQ9 etc.
#accordingly.
#
#CC= gcc
#CXX= g++ -std-gnu++11
#
#CC= clang
#CXX=clang++ -std=gnu++11

#detection
CCISCLANG := $(shell echo `$(CC) --version` | grep clang)
ifeq "$(CCISCLANG)" ""
ifdef WANT_WIN_QT6
CXX=g++ -std=c++17
else
CXX=g++ -std=gnu++11
endif
else
ifdef WANT_WIN_QT6
CXX=clang++ -std=c++17
else
CXX=clang++ -std=gnu++11
endif
endif   # clang

# If you want to override the compiler detection just carried out
# uncomment one of the following pairs. Note, however, that
# doing this after the detection above will likely result in
# mismatched variable values for CCISCLANG, GCCGTEQ, CLANGPPGTEQ9 etc.
#
#CC= gcc
#CXX= g++ -std-gnu++11
#
#CC= clang
#CXX=clang++ -std=gnu++11

CFLAGS=$(CCFLAGS) -I../include -DNOTPARMDECL
CFLAGS+=-Wall -Wextra -Wno-missing-field-initializers \
	-Wreturn-type -Wunused -Wformat -Wswitch -Wshadow -Wwrite-strings
CFLAGS+=-pedantic
CFLAGS+=-Wmissing-declarations
CFLAGS+=-Wunreachable-code
CFLAGS+=-Wformat-nonliteral
#
# the following are not allowed in C++
CFLAGS+=-Wimplicit
CFLAGS+=-Wimplicit-function-declaration
CFLAGS+=-Wimplicit-int
CFLAGS+=-Wmissing-prototypes
CFLAGS+=-Wold-style-definition
CFLAGS+=-Wstrict-prototypes

CCXXFLAGS = -g -I../include -DNOTPARMDECL
CCXXFLAGS+=-Wall -Wextra -Wno-missing-field-initializers \
        -Wreturn-type -Wunused -Wformat -Wswitch -Wshadow -Wwrite-strings
CCXXFLAGS+=-pedantic
CCXXFLAGS+=-Wmissing-declarations

ifeq "$(CCISCLANG)" ""
# gcc-specific follows
CFLAGS+=-Wmissing-parameter-type
ifdef WANT_WIN_QT
CCXXFLAGS+= -Wno-deprecated-copy
endif  # WANT_WIN_QT
# get the version of gcc
GCCGTEQ9 := $(shell expr `$(CC) -dumpversion | cut -f1 -d.` \>= 9)
GCCGTEQ11 := $(shell expr `$(CC) -dumpversion | cut -f1 -d.` \>= 11)
GCCGTEQ12 := $(shell expr `$(CC) -dumpversion | cut -f1 -d.` \>= 12)
ifeq "$(GCCGTEQ9)" "1"
# flags present in gcc version greater than or equal to 9 can go here
CFLAGS+=-Wformat-overflow
endif  #gcc version greater than or equal to 9
#still in gcc-specific section here
# get the version of g++
GPPGTEQ9 := $(shell expr `$(CXX) -dumpversion | cut -f1 -d.` \>= 9)
GPPGTEQ11 := $(shell expr `$(CC) -dumpversion | cut -f1 -d.` \>= 11)
GPPGTEQ12 := $(shell expr `$(CC) -dumpversion | cut -f1 -d.` \>= 12)
ifeq "$(GPPGTEQ9)" "1"
CCXXFLAGS+=-Wformat-overflow
ifdef WANT_WIN_QT
CCXXFLAGS+=-Wno-deprecated-copy
CCXXFLAGS+=-Wno-deprecated-declarations
endif  # WANT_WIN_QT
endif  # g++ version greater than or equal to 9
ifeq "$(GPPGTEQ11)" "1"
#the g++ linker will have trouble linker if the following isn't included
#when compiling the C files.
ifdef WANT_WIN_QT
CFLAGS+=-fPIC
endif  # WANT_WIN_QT
endif  # g++ version greater than or equal to 11
ifeq "$(GPPGTEQ12)" "1"
ifdef WANT_WIN_QT6
CXX=g++ -std=c++20
endif  # WANT_WIN_QT6
endif  # g++ version greater than or equal to 12
# end of gcc-specific

else   # clang-specific follows

# get the version of clang++
CLANGPPGTEQ9 := $(shell expr `$(CXX) -dumpversion | cut -f1 -d.` \>= 9)
CLANGPPGTEQ14 := $(shell expr `$(CXX) -dumpversion | cut -f1 -d.` \>= 14)
ifeq "$(CLANGPPGTEQ9)" "1"
ifdef WANT_WIN_QT
CCXXFLAGS+=-Wno-deprecated-copy
endif  # WANT_WIN_QT
endif  #clang++ greater than or equal to 9

ifdef WANT_WIN_QT
ifeq "$(CLANGPPGTEQ14)" "1"
# The clang++ linker seems to have trouble linker if the following isn't
# included when compiling the C files by clang..
CFLAGS+=-fPIC
endif  # clang++ greater than or equal to 14
CCXXFLAGS+=-Wno-deprecated-declarations
endif  # WANT_WIN_QT
endif  # clang-specific ends here

# enable some optional code in various NetHack source files
CFLAGS+=-DGCC_WARN
CCXXFLAGS+=-DGCC_WARN

ifdef MAKEFILE_SRC
ifdef WANT_WIN_QT
# when switching from Qt5 to Qt6 or vice versa, any old .moc files will be
# incompatible; get rid of them in case user hasn't run 'make spotless';
# object files are incompatable with Qt library, so get rid of them too;
# Qt*.h-t are empty timestamp files and at most one should exist
QTany_H = Qt*.h-t
ifdef WANT_WIN_QT6
# Qt 6 builds and runs (with a couple of warnings) but needs more testing
QTn_H = Qt6.h-t
else
# Qt 5 is currently the default version for nethack 3.7.x's Qt interface
QTn_H = Qt5.h-t
endif
$(QTn_H) ::
	@if test ! -f $@; then ( rm -f $(QTany_H) *.moc qt_*.o; touch $@ ); fi;
endif #WANT_WIN_QT
endif #MAKFILE_SRC

#end of compiler.370
#------------------------------------------------------------------------------