Supplying CONFIGURE_ARGS that have package-specific variables

[Louis Guillaume <louis%zabrico.com@localhost>]

Hi - I'm trying again on AIX to get a build of perl (this time 5.40.0nb1).

Looking at an RPM Spec that produced a working version of 5.38.x with 
GCC, I see these options:

export LDDLFLAGS3264="-G -bI:\$(PERL_INC)/perl.exp -bE:\$(BASEEXT).exp 
-bnoentry -lc -lm"


Now those LDDLFLAGS3264 get stuffed into LDDLFLAGS and then used in the 
configure statement:

... -Dlddlflags="$LDDLFLAGS" \


That's all understandable, but if I set this up in mk.conf like this:

CONFIGURE_ARGS+=  "-Dlddlflags=-G -bI:$(PERL_INC)/perl.exp 
-bE:$(BASEEXT).exp -bnoentry -lc -lm"

then bmake appears to expand the PERL_INC and BASEEXT macros and their 
values are blank. Escaping the `$' with varying numbers of backslashes 
either breaks the `configure' or results in blank values for those 
variables.

What's the proper way to get these variable references into the 
CONFIGURE_ARGS without bmake expanding them?

--
Louis