On Dec 23, 2008, at 6:04, Mayuresh <[email protected]> wrote:
On 12/22/08, Mayuresh <[email protected]> wrote:
I am not able to find the right way to escape bracket in
particular in
the arguments of a function. See example below:
LIST=a b c
LISTP=$(addprefix "\(", $(LIST))
all:
echo $(LISTP)
I get the error:
makefile:2: *** unterminated call to function `addprefix': missing
`)'.
Stop.
I can work around this by defining bracket as a variable and then
using
it in
place of actual bracket, though it will be nicer if I could escape
the
bracket directly. Can someone help?
Mayuresh.
Saying something along the lines of ...
PAREN :=(
LIST :=a b c
LISTP := $(addprefix $(PAREN), $(LIST))
all:
echo "$(LISTP)"
... is probably what you want.
1. Most special characters in GNU Make have to be parametrized and
often times $(subst)'ed in place of existing variables.
Wonder why some special characters are allowed to be escaped while
some others
are not. For example, I can easily escape # like this:
LIST=a b c
LISTP=$(addprefix "\#", $(LIST))
all:
echo $(LISTP)
2. Not inserting quotes around the echo string will result in shell
syntax failures because `(' is a delimiter in bourne shell.
Cheers,
-Garrett
It's no doubt an issue with how variables and functions are expanded.
I'm sure Paul could better explain this phenomena.
HTH,
-Garrett
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