这个简单的Makefile有什么问题
这是输出:这个简单的Makefile有什么问题,makefile,Makefile,这是输出: SRC_VAR = test string for variable manipulation. TEST1_VAR = $(subset for,foo,${SRC_VAR}) all: @echo original str: ${SRC_VAR} @echo substitution: ${TEST1_VAR} 输出应为: original str: test string for variable manipulation. substitution:
SRC_VAR = test string for variable manipulation.
TEST1_VAR = $(subset for,foo,${SRC_VAR})
all:
@echo original str: ${SRC_VAR}
@echo substitution: ${TEST1_VAR}
输出应为:
original str: test string for variable manipulation.
substitution:
替换命令是
subst
,而不是subset
替换命令是subst
,而不是subset
original str: My test string for variable manipulation.
substitution: My test string foo variable manipulation.