Makefile是一种用于自动化构建和管理软件项目的文件。它通常包含了一系列规则和指令,用于描述项目中的文件依赖关系和构建过程。 对特定文件使用`ifeq`测试的Makefile是指在Makefil...
NODEPS := clean INCLUDE = $(filter $(NODEPS),$(MAKECMDGOALS)) .PHONY : all clean ifndef $(MAKECMDGOALS) @echo "$$(MAKECMDGOALS) is not defined" else @echo "$(MAKECMDGOALS) is defined" endif ifneq (0, $(words $(INCLUDE))) @echo "INCLUDE = $(INCLUDE) != 0" else @echo "INCLUDE ...
# 输出; makefile:9: c value: 这里并没有像文档中所说的能够输出一个shell的输出. 但是另外一种使用shell函数是可以的. var := $(shell find . -name "*.c") $(warning $(var)) # makefile:19: ./main.c 这个特性不推荐使用. 可以参考:what-is-the-difference-between-the-gnu-makefile-variabl...
我把这个放在我的Makefile里 VERSION=0.10.2 SED=sed www/Makefile: www/Makefile.in Makefile .$(VERSION) test -d www && $(SED) -e "s/{{VERSION}}/$(VERSION)/g" www/Makefile.in > www/Makefile || true 要在www目录中更新Makefile,但是我在github上的repo没有这个目录,它只在我的本...
filter X, A B will return those of A,B that are equal to X. Note, while this is not relevant in the above example, this is a XOR operation. I.e. if you instead have something like: ifeq (4, $(filter 4, $(VAR1) $(VAR2))) And then do e.g. make VAR1=4 VAR2=4, th...
match rules, since filter matches entire words whereas findstring matches substrings. There are two ways to go. One, you can use the old "multiple inclusion guard" trick from the C preprocessor; define a variable in each makefile and test for it to avoid multiple inclusion. This would be ...
Snippet from Makefile.xu, which use eval and if: xubuild_check_objects: $(eval RESULT = $(call xu-obj_func-valid,$(xu-src-c-y))) @echo 'echo nothing (dummy)' >/dev/null $(if $(filter n,$(RESULT)), \ $(error XUbuild: error: xubuild_check_objects: xu-obj->xu-src-c-y...