--if ${CC} ${CFLAGS} _libversion.c -o _libversion > /dev/null 2>&1 && \
-+if ${CC_FOR_BUILD} _libversion.c -o _libversion > /dev/null 2>&1 && \
- ./_libversion > _libversion.sh && . ./_libversion.sh
+-if ${CC} ${CFLAGS} -I"$srcdir" _libversion.c -o _libversion > /dev/null 2>&1 \
++if ${CC_FOR_BUILD} -I"$srcdir" _libversion.c -o _libversion > /dev/null 2>&1 \
+ && ./_libversion > _libversion.sh && . ./_libversion.sh