+if GL_GENERATE_ALLOCA_H
+alloca.h: alloca.in.h $(top_builddir)/config.status
+ $(AM_V_GEN)rm -f $@-t $@ && \
+ { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
+ cat $(srcdir)/alloca.in.h; \
+ } > $@-t && \
+ mv -f $@-t $@
+else
+alloca.h: $(top_builddir)/config.status
+ rm -f $@
+endif