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# sets compiler settings
#
# requires:
# - INCLUDE_DIRS
#
# provides:
# - BIN_OBJS: the object files we need for the binaries (containing the main)
#
# -Wswitch-default: not good for switches with enums
# -Wsystem-headers: bad idea, as header files are usually happily broken :-)
# -Wtraditional: we don't want to program tradition K&R C anymore!
# -Wunsafe-loop-optimizations: ??
# -Wno-attributes, -Wmissing-format-attribute: ?? later
# -Wpacked -Wpadded: ?? very questionable
# -Wunreachable-code: doesn't work
# -Wno-div-by-zero: we get NaN and friend over macros, so need for funny tricks :-)
# -Wstrict-overflow=5 is relatively new, later maybe
# -fstack-protector or -fstack-protector-all: should be used, but U
# have currently big problems to get it around compiler gcc and -lssl
# probing! FIXME later
# -fstack-protector-all: does something funny to the shared objects..
# -Wstack-protector makes no sense without SSP
# everything implied by -Wall is not explicitly specified (gcc 4.2.3)
# -Waggregate-return: is for K&R code and mostly useless nowadays
#-Werror
# compilation flags and compilers
COMMON_COMPILE_FLAGS = \
-g -D_REENTRANT \
-fstrict-aliasing \
-pedantic -Wall \
-Wunused -Wno-import \
-Wformat -Wformat-y2k -Wformat-nonliteral -Wformat-security -Wformat-y2k \
-Wswitch-enum -Wunknown-pragmas -Wfloat-equal \
-Wundef -Wshadow -Wpointer-arith \
-Wcast-qual -Wcast-align \
-Wwrite-strings -Wconversion \
-Wmissing-noreturn \
-Wno-multichar -Wparentheses -Wredundant-decls \
-Winline \
-Wdisabled-optimization \
$(INCLUDE_DIRS)
ifeq "$(GCC_MAJOR_VERSION)" "4"
COMMON_COMPILE_FLAGS += \
-Wfatal-errors -Wmissing-include-dirs -Wvariadic-macros \
-Wvolatile-register-var \
-Wstrict-aliasing=2 -Wextra -Winit-self
endif
ifeq "$(GCC_MAJOR_VERSION)" "3"
# gcc 3.3, testend on OpenBSD 4.2
ifeq "$(GCC_MINOR_VERSION)" "3"
COMMON_COMPILE_FLAGS += \
-W
endif
# gcc 3.4, not tested yet
ifeq "$(GCC_MINOR_VERSION)" "4"
COMMON_COMPILE_FLAGS += \
-Wstrict-aliasing=2 -Wextra -Winit-self
endif
endif
COMPILE_FLAGS = \
$(COMMON_COMPILE_FLAGS) \
-std=c99 \
-Wnonnull \
-Wbad-function-cast -Wstrict-prototypes \
-Wmissing-prototypes -Wmissing-declarations \
-Wnested-externs
# gcc 4.x
ifeq "$(GCC_MAJOR_VERSION)" "4"
COMPILE_FLAGS += \
-Wc++-compat -Wdeclaration-after-statement -Wold-style-definition
endif
ifeq "$(GCC_MAJOR_VERSION)" "3"
# gcc 3.4, not tested yet
ifeq "$(GCC_MINOR_VERSION)" "4"
COMPILE_FLAGS += \
-Wdeclaration-after-statement -Wold-style-definition
endif
# gcc 3.3, testend on OpenBSD 4.2
ifeq "$(GCC_MINOR_VERSION)" "3"
#COMPILE_FLAGS += \
# -Wdeclaration-after-statement
endif
endif
CCPP_COMPILE_FLAGS = \
$(COMMON_COMPILE_FLAGS) \
-std=c++98
# gcc 4.x
ifeq "$(GCC_MAJOR_VERSION)" "4"
CCPP_COMPILE_FLAGS += \
-Wno-invalid-offsetof
endif
ifeq "$(GCC_MAJOR_VERSION)" "3"
# gcc 3.4, not tested yet
ifeq "$(GCC_MINOR_VERSION)" "4"
CCPP_COMPILE_FLAGS += \
-Wno-invalid-offsetof
endif
# gcc 3.3, testend on OpenBSD 4.2
ifeq "$(GCC_MINOR_VERSION)" "3"
#CCPP_COMPILE_FLAGS += \
# -Wdeclaration-after-statement
endif
endif
CFLAGS = $(COMPILE_FLAGS) $(PLATFORM_COMPILE_FLAGS) $(DEBUGLEVELFLAGS)
CCPPFLAGS = $(CCPP_COMPILE_FLAGS) $(PLATFORM_COMPILE_FLAGS) $(DEBUGLEVELFLAGS)
CC = gcc
CCPP = g++
LDFLAGS = $(LDFLAGS_DIR)
LIBS = $(LIBS_DL) $(LIBS_SSP) $(LIBS_DIR)
LINK = $(CC)
CCPP_LINK = $(CCPP)
%.o : %.c
$(CC) -c -o $@ $(CFLAGS) $<
%.o : %.cpp
$(CCPP) -c -o $@ $(CCPPFLAGS) $<
%$(EXE): %.o $(OBJS)
$(LINK) -o $@ $(OBJS) $< $(LIBS)
%.sho : %.c
$(CC) -c -o $@ -fPIC -DSHARED $(CFLAGS) $<
%$(SO) : %.sho $(OBJS)
$(LINK) -shared -o $@ $(LDFLAGS) $(LIBS) $(OBJS) $<
%.sho++ : %.cpp
$(CCPP) -c -o $@ -fPIC -DSHARED $(CCPPFLAGS) $<
%$(SO) : %.sho++ $(OBJS) $(CPPOBJS)
$(CCPP_LINK) -shared -o $@ $(LDFLAGS) $(LIBS) $(OBJS) $(CPPOBJS) $<
BIN_OBJS = $(BINS:$(EXE)=.o)
CPP_BIN_OBJS = $(CPP_BINS:$(EXE)=.o)
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