From 3fbf31290eefc459dcfee379d60d63cc3aef443c Mon Sep 17 00:00:00 2001
From: Vito Caputo <vcaputo@pengaru.com>
Date: Sun, 11 Jun 2023 14:30:22 -0700
Subject: build: move -D_GNU_SOURCE to CFLAGS

drm_fb.c did this locally for asprintf() but since then rand_r
and open_memstream have entered the picture as well...

this hasn't been a problem on gnu/linux builds but let's just
globally go _GNU_SOURCE for now.  In mingw land I suspect
open_memstream in particular is going to be a PITA and require
replacement, judging from search results anyways
---
 configure.ac | 2 +-
 src/drm_fb.c | 1 -
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index f523ece..e16ab97 100644
--- a/configure.ac
+++ b/configure.ac
@@ -22,7 +22,7 @@ PKG_CHECK_MODULES(SDL, sdl2,
 AM_CONDITIONAL(ENABLE_ROTOTILLER, [test "x$build_rototiller" = xtrue])
 
 LIBS="$DRM_LIBS $SDL_LIBS $LIBS"
-CFLAGS="$DRM_CFLAGS $SDL_CFLAGS $CFLAGS"
+CFLAGS="$DRM_CFLAGS $SDL_CFLAGS $CFLAGS -D_GNU_SOURCE"
 
 AX_PTHREAD
 LIBS="$PTHREAD_LIBS $LIBS"
diff --git a/src/drm_fb.c b/src/drm_fb.c
index fe2fefd..7c0aadc 100644
--- a/src/drm_fb.c
+++ b/src/drm_fb.c
@@ -1,4 +1,3 @@
-#define _GNU_SOURCE	/* for asprintf() */
 #include <assert.h>
 #include <fcntl.h>
 #include <inttypes.h>
-- 
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