Fixes failed distcheck

tests/tests-c-compiler/check-assembly.sh

@@ -70,7 +70,7 @@ AUTOGENERATED="# This file is autogenerated by $0 ${source_full} ${AFLAGS}"
 # Create a common Makefile for the project
 cat <<END_MAKEFILE > "${testdir}/Makefile"
 ${AUTOGENERATED}
-COMMON_FLAGS= -I. -I${abs_top_srcdir}
+COMMON_FLAGS= -I. -I${abs_top_builddir}
 CFLAGS = \${COMMON_FLAGS} ${CFLAGS:-} ${DEFS} -g -O1
 CFLAGS += -DSRCDIR=../${srcdir}
 CXXFLAGS = \${CFLAGS} ${CXXFLAGS}