AC_MSG_ERROR([unable to find the dlopen() function])
])
+
+# Check for -fstack-protector
+ssp_cc=yes
+if test "X$CC-cc" != "X"; then
+ AC_MSG_CHECKING([whether ${CC-cc} accepts -fstack-protector])
+ ssp_old_cflags="$CFLAGS"
+ CFLAGS="$CFLAGS -fstack-protector"
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[alloca(100);]])], [], [ssp_cc=no])
+ AC_MSG_RESULT([$ssp_cc])
+ if test "X$ssp_cc" = "Xno"; then
+ CFLAGS="$ssp_old_cflags"
+ else
+ AC_DEFINE([ENABLE_SSP_CC], 1, [Define if SSP C support is enabled.])
+ fi
+fi
+AM_CONDITIONAL(USE_SSP, test "$ssp_cc" = "yes")
+
dnl Check for recent enough DRM
LIBDRM_VERSION=libdrm_version
PKG_CHECK_MODULES([DRM], [libdrm >= $LIBDRM_VERSION libdrm_intel])