Commit fa293c4d62 for openssl.org

commit fa293c4d62628d434ed46392a9cbea0b91d73671
Author: Beat Bolli <dev@drbeat.li>
Date:   Thu Feb 26 22:20:32 2026 +0100

    remove OPENSSL_BUILDING_OPENSSL from the config

    Commit 262cda1cda ("Remove some safestack things that are no longer
    needed", 2020-09-03) removed the last usage on this macro.  Remove it in
    the configuration as well.

    Reviewed-by: Frederik Wedel-Heinen <fwh.openssl@gmail.com>
    Reviewed-by: Paul Dale <paul.dale@oracle.com>
    Reviewed-by: Tomas Mraz <tomas@openssl.org>
    MergeDate: Wed Mar  4 10:21:38 2026
    (Merged from https://github.com/openssl/openssl/pull/30199)

diff --git a/Configurations/00-base-templates.conf b/Configurations/00-base-templates.conf
index 86287c3a25..09295bf846 100644
--- a/Configurations/00-base-templates.conf
+++ b/Configurations/00-base-templates.conf
@@ -47,7 +47,7 @@ my %targets=(

 	defines		=>
 	    sub {
-                my @defs = ( 'OPENSSL_BUILDING_OPENSSL' );
+                my @defs = ();
                 push @defs, "BROTLI" unless $disabled{brotli};
                 push @defs, "BROTLI_SHARED" unless $disabled{"brotli-dynamic"};
                 push @defs, "ZLIB" unless $disabled{zlib};