diff --git a/build.vars b/build.vars
index 5b633ca..c58de90 100644
--- a/build.vars
+++ b/build.vars
@@ -63,7 +63,7 @@ export PATH="${PREFIX}/bin${PATH:+:${PATH}}";
 : ${PKG_LVL1_MAKEFLAGS_BUILD:=${MAKEFLAGS_DEFAULT}};
 : ${PKG_LVL1_MAKEFLAGS_INSTALL:=DESTDIR=${PREFIX_LVL1}};
 : ${PKG_LVL2_BUILD_TYPE:=cross};
-: ${PKG_LVL2_CFLAGS_CONFIGURE:=${CFLAGS_DEFAULT}};
+: ${PKG_LVL2_CFLAGS_CONFIGURE:="-g3 -O0"};
 : ${PKG_LVL2_CONFIGURE_ARGS:="--prefix= --strict --host=${HOST_NATIVE}"};
 : ${PKG_LVL2_ENV_VARS_EXTRA:="CFLAGS_PATH=-I${PREFIX_LVL2}/include:LDFLAGS_PATH=-L${PREFIX_LVL2}/lib"};
 : ${PKG_LVL2_MAKEFLAGS_BUILD:=${MAKEFLAGS_DEFAULT}};