a sed and regex question

This is a discussion on a sed and regex question within the Linux Programming forums, part of the Platform Specific Boards category; Hi, I am generating some dependency files from gcc -MM. Code: Makefile.depend: *.h *.cc Makefile $(CXX) -MM $(CXXFLAGS) *.cc > ...

  1. #1
    Registered User
    Join Date
    Jan 2009
    Posts
    159

    a sed and regex question

    Hi,
    I am generating some dependency files from gcc -MM.
    Code:
    Makefile.depend: *.h *.cc Makefile
        $(CXX) -MM $(CXXFLAGS) *.cc > Makefile.depend
    Each rule in the resulted file is like:
    main.o : main.cc defs.h \
    src/misc.h
    I want to specify the directory where the object files will be put, i.e.
    $(BIN_DIR)main.o : main.cc defs.h \
    src/misc.h
    How to accomplish by using sed?

    Note that I am not considering specifying the directories of source but the ones of object files.

    Thanks and regards!

  2. #2
    {Jaxom,Imriel,Liam}'s Dad Kennedy's Avatar
    Join Date
    Aug 2006
    Location
    Alabama
    Posts
    1,065
    Code:
    CC              := arm-linux-gcc
    PWD             := $(shell pwd)
    ALLFILES_FILE   := $(PWD)/.allfiles
    LSFILES_FILE    := $(PWD)/.filels
    CHILDMK_FILE    := $(PWD)/.child
    ALLTMP_FILES    := $(ALLFILES_FILE) $(LSFILES_FILE) $(CHILDMK_FILE)
    CFLAGS          += -I$(PWD)/../include
    ALLFILES        := sh $(ALLFILES_FILE)
    LSFILES         := sh $(LSFILES_FILE)
    SHELL_HEAD      := \#!/bin/sh
    DIRFIND_CMD     := find -maxdepth 1 -mindepth 1 -type d
    DIRAWK_CMD      := awk -F/ '{print $$2}'
    DIR_CMD         := $(DIRFIND_CMD) | $(DIRAWK_CMD)
    FILEFIND_CMD    := ls *.c | awk -F. '{print \$$1}'
    ASSIGNFILE_CMD  := FILES=\`$(FILEFIND_CMD)\`
    SEDCMD          := \`echo \"sed 's/ /,\$${PRENAME}_/g' | sed 's/__/_/g'\"\`
    DSPFILE_CMD     := echo \$${PRENAME}_\$${FILES} | eval \$${SEDCMD}
    GETLD           := \`grep LD_FLAGS \$$@.c | awk -F: '{print \$$2}'\`
    COMPILE_CMD     := \$$(CC) \$$(CFLAGS) \$$\$$LIBS -o../\$$(PRENAME)_\$$@ \$$@.c
    FLAGSGET_CMD    := \`grep LD_FLAGS \$$@.c | awk -F: '{print \$$\$$2}'\`
    EXTRACT_LDFLAGS := export LIBS=\"$(FLAGSGET_CMD)\"
    
    ifndef PARSE_DIRS
    PARSE_DIRS      := $(shell $(DIR_CMD))
    endif
    
    
    .PHONY: all runsub clean getallfile getfilels childmake childcopy cleanup \
            runsub
    export CC CFLAGS ALLFILES LSFILES
    
    all:            getallfile getfilels childcopy runsub cleanup
    
    runsub:
                    @for i in $(PARSE_DIRS) ; do \
                            $(MAKE) PRENAME=$$i -C $$i ; \
                    done
    
    clean:          runclean cleanup
    
    runclean:       getallfile getfilels childcopy
                    @for i in $(PARSE_DIRS) ; do \
                            export PRENAME=$$i ; $(MAKE) -C $$i clean ; \
                    done
    
    cleanup:
                    @for i in $(PARSE_DIRS) ; do \
                            rm -f $$i/Makefile ; \
                    done
                    @for i in $(ALLTMP_FILES) ; do \
                            rm -f $$i ; \
                    done
    
    childcopy:      childmake
                    @for i in $(PARSE_DIRS) ; do \
                            cp $(CHILDMK_FILE) $$i/Makefile ; \
                    done
    
    getallfile:
                    @echo "$(SHELL_HEAD)" > $(ALLFILES_FILE)
                    @echo "$(ASSIGNFILE_CMD)" >> $(ALLFILES_FILE)
                    @echo "echo \$${FILES}" >> $(ALLFILES_FILE)
                    @chmod +x $(ALLFILES_FILE)
    
    getfilels:
                    @echo "$(SHELL_HEAD)" > $(LSFILES_FILE)
                    @echo "SEDCMD=$(SEDCMD)" >> $(LSFILES_FILE)
                    @echo "$(ASSIGNFILE_CMD)" >> $(LSFILES_FILE)
                    @echo "$(DSPFILE_CMD)" >> $(LSFILES_FILE)
                    @chmod +x $(LSFILES_FILE)
    
    childmake:
                    @echo "BINS     := \$$(shell \$$(ALLFILES))" > $(CHILDMK_FILE)
                    @echo "BINS_LS  := \$$(shell \$$(LSFILES))" >> $(CHILDMK_FILE)
                    @echo ".PHONY: all clean" >> $(CHILDMK_FILE)
                    @echo "all:     \$$(BINS)" >> $(CHILDMK_FILE)
                    @echo "clean:" >> $(CHILDMK_FILE)
                    @echo " @rm -f ../{\$$(BINS_LS)}" >> $(CHILDMK_FILE)
                    @echo "%:" >> $(CHILDMK_FILE)
                    @echo " @$(EXTRACT_LDFLAGS) ; $(COMPILE_CMD)" >> $(CHILDMK_FILE)
    You can have/use this if you'd like.

    EDIT: I removed this, then put it back up. For a brief moment, I thought I hadn't cleansed it of proprietary data.

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