如何修复这个 Makefile

发布于 2024-09-01 11:07:34 字数 702 浏览 4 评论 0原文

它所做的不是可执行代码，而是创建不执行任何操作的文件，即使这些文件是可执行的。

TARGETS = load list show add delete btree
all: $(TARGETS)
%: %.cpp
    g++ $< -g -o $@ -MM -MF [email protected]
    sed "s/$@\.o:/$@:/" [email protected] > [email protected]
    -@rm [email protected]

DEPS=$(TARGETS:%=%.d)
-include $(DEPS)

原文

Instead of executable code all it does is create files that don't do anything, even if the files are made executable.

TARGETS = load list show add delete btree
all: $(TARGETS)
%: %.cpp
    g++ 
lt; -g -o $@ -MM -MF [email protected]
    sed "s/$@\.o:/$@:/" [email protected] > [email protected]
    -@rm [email protected]

DEPS=$(TARGETS:%=%.d)
-include $(DEPS)

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药祭#氼 2024-09-08 11:07:34

您正在使用 -MM 选项运行 g++，以创建依赖项文件。但此选项会导致 g++ 写入依赖文件而不是二进制文件。

试试这个：

TARGETS = load list show add delete btree
all: $(TARGETS)
%: %.cpp
    g++ lt; -g -o $@
    g++ 
lt; -g -MM -MF [email protected]
    sed "s/$@\.o:/$@:/" [email protected] > [email protected]
    -@rm [email protected]

DEPS=$(TARGETS:%=%.d)
-include $(DEPS)

You are running g++ with the -MM option, to create the dependency file. But this option causes g++ to write a dependency file instead of a binary.

Try this:

TARGETS = load list show add delete btree
all: $(TARGETS)
%: %.cpp
    g++ lt; -g -o $@
    g++ 
lt; -g -MM -MF [email protected]
    sed "s/$@\.o:/$@:/" [email protected] > [email protected]
    -@rm [email protected]

DEPS=$(TARGETS:%=%.d)
-include $(DEPS)

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