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From: | Victor Porton |
Subject: | Should I define _GNU_SOURCE? |
Date: | Mon, 22 Jan 2018 17:55:50 +0200 |
I am writing a software for Linux/Unix which could benefit from execvpe() C function. But this function is defined only when -D_GNU_SOURCE. Question 1: Should I ALWAYS use -D_GNU_SOURCE for compiler options no matter what are user options? Question 2: Should I check existence of execvpe() by checking #if _GNU_SOURCE or with AC_CHECK_FUNC(execvpe)? Question 3: Other advice?
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