Question

I need to find the text ‘ifeq ($(Param1)’ using grep. I try to assign search result to make variable. The problem is that single quotes don’t escape text in make so when I try:

GrepResult:= $(shell grep 'ifeq ($$(Param1)' TextFile)

I get:

Makefile:214: *** unterminated call to function `shell': missing `)'.  Stop.

The $ can be escaped with $$ but how do I escape parentheses in make?
Thanks.

NB: $GrepResult is used in $(error) function, not in a rule command.

Answer 1

Do you really need to use $(shell) ?

GrepResult:= `grep 'ifeq (\$$(Param1)' TextFile`

all:
  echo ${GrepResult}

Tested with GNU Make 3.81.