我不能再运行任何 Makefile 了。我得到:
./Makefile: line 1: sorter:: command not found
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Makefile的内容:
sorter: sorter.o
gcc sorter.o -o sorter
sorter.o: sorter.c
gcc -c sorter.c
test:
./run_test
check:
c_style_check sorter.c
clean:
rm -f sorter *.o
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令人惊讶的是,就在昨天,我所有的 Makefile 过去都运行良好。我不知道发生了什么,我想我的 Lubuntu 有更新,但就是这样。
发生错误是因为您希望 shell 理解并运行该文件。
Makefile 并不意味着可执行 - 它们作为make
命令的输入提供,例如make -f Makefile
- 或只是make
,因为它将在当前目录中搜索具有默认名称的文件,例如Makefile
, makefile
。
来自man make
:
To prepare to use make, you must write a file called the makefile that
describes the relationships among files in your program, and the states
the commands for updating each file. In a program, typically the exe?
cutable file is updated from object files, which are in turn made by
compiling source files.
Once a suitable makefile exists, each time you change some source
files, this simple shell command:
make
suffices to perform all necessary recompilations. The make program
uses the makefile description and the last-modification times of the
files to decide which of the files need to be updated. For each of
those files, it issues the commands recorded in the makefile.
make executes commands in the makefile to update one or more target
names, where name is typically a program. If no -f option is present,
make will look for the makefiles GNUmakefile, makefile, and Makefile,
in that order.
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