--- configure.ac.orig	2025-12-18 18:16:59 UTC
+++ configure.ac
@@ -87,7 +87,11 @@ fi
 	DRM_MODE=no
 fi
 
-PKG_CHECK_MODULES([PCIACCESS], [pciaccess >= 0.10])
+PKG_CHECK_MODULES([PCIACCESS], [pciaccess >= 0.10.0], [LIBPCIACCESS=yes], [LIBPCIACCESS=no])
+if test "x$LIBPCIACCESS" = xyes; then
+	AC_DEFINE(HAVE_PCI_DEVICE_IS_BOOT_DISPLAY, 1, [libpciaccess support])
+	CFLAGS="-DHAVE_PCI_DEVICE_IS_BOOT_DISPLAY=1 $CFLAGS"
+fi
 
 save_CFLAGS="$CFLAGS"
 CFLAGS="$DRM_CFLAGS $CFLAGS"