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From: | John Calcote |
Subject: | Re: finding the value of a preprocessor symbol |
Date: | Thu, 21 Jan 2010 16:58:46 -0700 |
User-agent: | Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.7) Gecko/20100111 Thunderbird/3.0.1 |
Hi David, On 1/21/2010 4:38 PM, David Byron wrote:
Let's say I have a header file named foo.h that contains: #define FOO an_interesting_value (I think) I'm looking for a macro like this: AC_GET_VALUE([foo.h],[FOO]) that populates ac_cv_value_of_FOO with an_interesting_value
This is totally not portable, but... $ cpp -dM foo.h | grep FOO #define FOO an_interesting_value A little string manipulation will put the value in a shell variable. John
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