[Rd] undefined symbol: cholmod_factorize_p

[Göran Broström]

I am installing R_3.5.1 from source on ubuntu 18.04, and 'config' + 
'make' gives me (at the end)

Loading required package: Matrix
Error: package or namespace load failed for ‘Matrix’ in dyn.load(file, 
DLLpath = DLLpath, ...):
  unable to load shared object 
'/home/goran/src/R-3.5.1/library/Matrix/libs/Matrix.so':
   /home/goran/src/R-3.5.1/library/Matrix/libs/Matrix.so: undefined 
symbol: cholmod_factorize_p
Error in eval(exprs[i], envir) : require(Matrix) is not TRUE
ERROR: installing package indices failed
* removing ‘/home/goran/src/R-3.5.1/library/Matrix’
Makefile:51: recipe for target 'Matrix.ts' failed
make[2]: *** [Matrix.ts] Error 1
make[2]: Leaving directory '/home/goran/src/R-3.5.1/src/library/Recommended'
Makefile:39: recipe for target 'recommended-packages' failed
make[1]: *** [recommended-packages] Error 2
make[1]: Leaving directory '/home/goran/src/R-3.5.1/src/library/Recommended'
Makefile:77: recipe for target 'stamp-recommended' failed
make: *** [stamp-recommended] Error 2

What am I missing?

Göran