I guess your solution (and Fakeconfig from Anonymous) will eliminate the pain to clean the config string in an m4 macro (as I am using Gnu Autotools to generate the Makefile for the project). Of course I do not know what I want, I know what I do not want! I do not want "-O*", so I will filter that out inside the Perl one liner calling Config to tell me the CFLAGS. Thanks for the idea.

I have updated my question so as mention an m4 macro which can be used by Autotools to get CFLAGS when compiling C programs having an embeded Perl.

In reply to Re^2: Config sets optimisation compilation flags (-O/-g)! by bliako
in thread Config sets optimisation compilation flags (-O/-g)! by bliako

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