わいえむねっと

$ cat foo.d
foo.o: foo.cc foo.h bar/bar.h
bar.o: bar/bar.cc bar/bar.h

OBJS        =   $(SRCS:%.cc=%.o)

OBJS        =   $(notdir $(SRCS:%.cc=%.o))

%.o: %.cc
    $(COMPILE.cc) $(OUTPUT_OPTION) $<

$ echo|perl -0pe 'print ord $/'
0
$ echo|perl -08pe 'print ord $/'
Unrecognized switch: -8peprint ord $/  (-h will show valid options).
$ echo|perl -0377pe 'print ord $/'
255
$ echo|perl -p0377e 'print ord $/'
255
$ echo|perl -0400pe 'print ord $/'
0
$ echo|perl -0401pe 'print ord $/'
0
$ echo|perl -0ep 'print ord $/'
$ echo|perl -e0p 'print ord $/'
Bareword found where operator expected at -e line 1, near "0p"
        (Missing operator before p?)
syntax error at -e line 1, next token ???
Execution of -e aborted due to compilation errors.
$ echo|perl -ep0 'print ord $/'
$ echo|perl -pe0 'print ord $/'
Can't open print ord $/: そのようなファイルやディレクトリはありません.

$ cat Makefile
TARGET      =   foo
SRCS        =   foo.cc \
                bar/bar.cc
OBJS        =   $(SRCS:%.cc=%.o)
DEPEND      =   $(TARGET).d
CXXFLAGS    =   -Ibar
 
all: $(TARGET)
 
$(TARGET): $(OBJS)
 
$(DEPEND): $(SRCS)
    $(CXX) $(CXXFLAGS) -MM $^ >$@
 
include $(DEPEND)

$ cat foo.d
foo.o: foo.cc foo.h bar/bar.h
bar.o: bar/bar.cc bar/bar.h

$(DEPEND): $(SRCS)
    $(CXX) $(CXXFLAGS) -MM $^|perl -e '\
    do{\
        do{\
            /([^\/]+)$$/ and $$IN =~ s/$$1/$$_/\
        } foreach split(/\s/, qq{$(OBJS)});\
        print $$IN\
    } while($$IN = <>)' >$@

$(DEPEND): $(SRCS)
    $(CXX) $(CXXFLAGS) -MM $^|perl -e '\
    do{\
        sub{\
            do{\
                /([^\/]+)$$/ and $$_[0] =~ s/$$1/$$_/\
            } foreach split(/\s/, qq{$(OBJS)})\
        }->($$_);\
        print\
    } while(<>)' >$@

$(DEPEND): $(SRCS)
    $(CXX) $(CXXFLAGS) -MM $^|perl -pe '\
    sub{\
        do{\
            /([^\/]+)$$/ and $$_[0] =~ s/$$1/$$_/\
        } foreach split(/\s/, qq{$(OBJS)})\
    }->($$_)' >$@

$(DEPEND): $(SRCS)
    $(CXX) $(CXXFLAGS) -MM $^|perl -0pe 'sub{do{/([^\/]+)$$/ and $$_[0]=~s/$$1/$$_/}foreach split(/\s/,qq{$(OBJS)})}->($$_)' >$@