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Diffstat (limited to 'makefiles/compiler.mk')
-rw-r--r-- | makefiles/compiler.mk | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/makefiles/compiler.mk b/makefiles/compiler.mk new file mode 100644 index 0000000..a0176a5 --- /dev/null +++ b/makefiles/compiler.mk @@ -0,0 +1,174 @@ +# sets compiler settings +# +# requires: +# - INCLUDE_DIRS +# +# provides: +# - BIN_OBJS: the object files we need for the binaries (containing the main) +# + +# TODO: sort out if we need so many flags :-) +# TODO: why don't specify the CFLAGS directly :-) +# - TODO: handle also -g -O2 +# -DTRACEDEBUG "$(DEBUGLEVEL)" "TRACE +# -DDEBUG $(DEBUGLEVEL)" "DEBUG" +# when nothing is defined, define -DNDEBUG (release) +# TODO: do we use precompiled header files feature of gcc (also -Winvalid-pch) + +# debug/tracing flags +ifeq "$(DEBUGLEVEL)" "TRACE" +DEBUGLEVELFLAGS=-DTRACEDEBUG -DDEBUG +else +ifeq "$(DEBUGLEVEL)" "DEBUG" +DEBUGLEVELFLAGS=-DDEBUG +else +DEBUGLEVELFLAGS=-DNDEBUG +endif +endif + +# -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) + +# compilation flags and compilers +COMMON_COMPILE_FLAGS = \ + -g -O2 -D_REENTRANT \ + -fstrict-aliasing \ + -pedantic -Wall -Werror \ + -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 -Waggregate-return \ + -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 = +LIBS = $(LIBS_DL) $(LIBS_SSP) +LINK = $(CC) +CCPP_LINK = $(CCPP) + +%.o : %.c + $(CC) -c -o $@ $(CFLAGS) $< + +%.o : %.cc + $(CCPP) -c -o $@ $(CCPPFLAGS) $< + +%$(EXE): %.o $(OBJS) + $(LINK) -o $@ $(LIBS) $(OBJS) $< + +%.sho : %.c + $(CC) -c -o $@ -fPIC -DSHARED $(CFLAGS) $< + +%$(SO) : %.sho $(OBJS) + $(LINK) -shared -o $@ $(LDFLAGS) $(LIBS) $(OBJS) $< + +%.sho++ : %.cc + $(CCPP) -c -o $@ -fPIC -DSHARED $(CCPPFLAGS) $< + +%$(SO) : %.sho++ $(OBJS) $(CPPOBJS) + $(CCPP_LINK) -shared -o $@ $(LDFLAGS) $(LIBS) $(OBJS) $(CPPOBJS) $< + +BIN_OBJS = $(BINS:$(EXE)=.o) + |