WebInsert a new-line in a Makefile $(foreach ) loop. As already mentioned in Jonathan Wakely's answer, the straightforward answer is. define newline endef . Interestingly enough, for all chars except newline there is an easier way to get non-printable characters into variables with some help from the shell, e.g.: WebThe variable value is unset if no != or $(shell ...) function has been invoked. * The $(file ...) function can now read from a file with $(file

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Web[email protected]:~$ cat Makefile MY_VAR := $(shell echo whatever) all: @echo MY_VAR IS $(MY_VAR) Wrapping the assignment in an eval is working for me. # dependency on .PHONY prevents Make from # thinking there's `nothing to be done` set_opts: .PHONY $(eval DOCKER_OPTS = -v $(shell mktemp -d -p /scratch):/output) WebJul 4, 2024 · Makefile - Passing arguments. # makefile # shell. I have not known this🥺. # Makefile DEFAULT=fuga test: @echo $ (DEFAULT) team guineo racing

Makefile中的基本if else语句 - IT宝库

Web我试图在makefile中执行简单的语句:check:if [ -z $(APP_NAME) ]; then \\echo Empty \\else \\echo Not empty \\fi当我执行make check时，我会收到以下错误:if ... 将其置于极端，在shell脚本文件中可以使用以下内容，因为 newline 用作命令评估(就像在终端击中Enter中一样输入命令): if [ 0 ] ... WebVariables and functions in all parts of a makefile are expanded when read, except for the shell commands in rules, the right-hand sides of variable definitions using `=', and the … Web将首先展开makefile变量$(VAR1)（在POSIX make中，反斜杠没有任何特殊之处;它们只是一个字符，就像任何其他字符一样），因此如果VAR1的值为DATA.SUBVOL，则扩展的结果将是： @echo "DUPW \DATA.SUBVOL.FILE*" 如果你想在输出中放入一个文字$，你可以通过写$$来从make中转义它。 team gun games free online