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Basic questions about makefile, e.g. what does @- mean
From: |
Marco |
Subject: |
Basic questions about makefile, e.g. what does @- mean |
Date: |
Mon, 7 Feb 2011 19:21:30 +0100 |
Hi,
I have some questions considering makefiles. My makefile is as follows:
###########################################################
program_NAME := prog
program_C_SRCS := $(wildcard *.c)
program_CXX_SRCS := $(wildcard *.cpp)
program_C_OBJS := ${program_C_SRCS:.c=.o}
program_CXX_OBJS := ${program_CXX_SRCS:.cpp=.o}
program_OBJS := $(program_C_OBJS) $(program_CXX_OBJS)
program_INCLUDE_DIRS :=
program_LIBRARY_DIRS :=
program_LIBRARIES :=
CPPFLAGS += $(foreach includedir,$(program_INCLUDE_DIRS),-I$(includedir))
LDFLAGS += $(foreach librarydir,$(program_LIBRARY_DIRS),-L$(librarydir))
LDFLAGS += $(foreach library,$(program_LIBRARIES),-l$(library))
.PHONY: all clean distclean
all: $(program_NAME)
$(program_NAME): $(program_OBJS)
$(LINK.cc) $(program_OBJS) -o $(program_NAME)
clean:
@- $(RM) $(program_NAME)
@- $(RM) $(program_OBJS)
distclean: clean
###########################################################
I think the linking takes place on the following line:
$(program_NAME): $(program_OBJS)
$(LINK.cc) $(program_OBJS) -o $(program_NAME)
Correct me if I'm wrong. Where does the compiling take place?
What does the @- mean? @ means silent output as far as I know, but @-?
Where can I specify compiling options, such as -Wall or -pedantic?
Regards
Marco
- Basic questions about makefile, e.g. what does @- mean,
Marco <=