diff -Nru orig/pcaL1/src/Makevars.ucrt patched/pcaL1/src/Makevars.ucrt
--- orig/pcaL1/src/Makevars.ucrt	1970-01-01 01:00:00.000000000 +0100
+++ patched/pcaL1/src/Makevars.ucrt	2021-02-17 19:45:42.133764500 +0100
@@ -0,0 +1,2 @@
+PKG_CPPFLAGS=-D_R_=1 -DUSE_R=1 -I${R_TOOLS_SOFT}/include/coin
+PKG_LIBS=-lClp -lCoinUtils -lstdc++ $(LAPACK_LIBS) $(BLAS_LIBS) $(FLIBS) -lz -lbz2