configure.ac: define STARPU_FPGA_CPPFLAGS and STARPU_FPGA_LDFLAGS

configure.ac

@@ -207,6 +207,8 @@ AC_SUBST(STARPU_USE_FPGA,$enable_fpga)
 AM_CONDITIONAL(STARPU_USE_FPGA,test x$enable_fpga = xyes)
 if test x$enable_fpga = xyes; then
    	AC_DEFINE(STARPU_USE_FPGA,[1],[FPGA Support is activated])
+	AC_SUBST(STARPU_FPGA_CPPFLAGS)
+	AC_SUBST(STARPU_FPGA_LDFLAGS)
 fi
 
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