bring back ___environ symbol (3 underscores)

its existence doesn't hurt anything, and dynamic-linked binaries using
previous versions of musl were wrongly binding to it instead of
__environ.

diff --git a/src/env/__environ.c b/src/env/__environ.c
index 0a2786fdeb3f7a037ea95ad8ae2397e1a7c3be28..51dba83bd151be2d6a4a06f531d0104551d662ec 100644 (file)
--- a/src/env/__environ.c
+++ b/src/env/__environ.c
@@ -2,5 +2,6 @@
 
 #undef environ
 char **__environ = 0;
+weak_alias(__environ, ___environ);
 weak_alias(__environ, _environ);
 weak_alias(__environ, environ);