From: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Date: Tue, 25 Nov 2025 23:32:54 +0000 (+0100)
Subject: tree-wide: Fix constness issues with newer glibc (#39896)
X-Git-Tag: v259-rc2~15
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1d26bac43f4c0db2e677ca2707e88d11e370f1bf;p=thirdparty%2Fsystemd.git

tree-wide: Fix constness issues with newer glibc (#39896)

Latest glibc uses _Generic to have strstr() and other functions return
const char* or char* based on whether the input is a const char* or a
char*. This causes build failures as we previously always expected a
char*.

Let's fix the compilation failures and add our own macros similar to
glibc's to have string functions that return a mutable or const pointer
depending on the input.
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1d26bac43f4c0db2e677ca2707e88d11e370f1bf