__USE_GNU is a glibc-internal symbol.
AC_USE_SYSTEM_EXTENSIONS is the proper autoconf
way to enable extensions.
Gbp-Pq: Name no-use-gnu.patch
AM_INIT_AUTOMAKE([tar-ustar subdir-objects])
AC_LANG([C])
+ AC_USE_SYSTEM_EXTENSIONS
LT_INIT
PKG_PROG_PKG_CONFIG
#define DBG_PERF
#endif
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE
-#endif
-
-#define __USE_GNU
-
#if defined(__clang_analyzer__)
/* clang analyzer acts as DEBUG_VALIDATION in some places, so
* force this so #ifdef DEBUG_VALIDATION code gets included */