Found the following significant warnings:
  ../inst/include/CImg.h:51714:57: warning: 'uint16' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51715:40: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51715:57: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51715:74: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51715:91: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51738:59: warning: 'uint16' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51739:42: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51739:59: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51739:76: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51739:93: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51762:51: warning: 'uint16' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51762:81: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51762:98: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51787:53: warning: 'uint16' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51787:83: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51787:100: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51765:9: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51765:37: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51768:11: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51790:9: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51790:37: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51794:13: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51815:7: warning: 'uint16' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51816:7: warning: 'uint16' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51817:7: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51856:9: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51856:33: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51856:66: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51862:64: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51888:9: warning: 'uint16' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:51891:11: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:55892:7: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:55892:30: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:55893:7: warning: 'uint16' is deprecated [-Wdeprecated-declarations]
  ../inst/include/CImg.h:55930:11: warning: 'uint32' is deprecated [-Wdeprecated-declarations]
See '/home/hornik/tmp/R.check/r-devel-clang/Work/PKGS/imager.Rcheck/00install.out' for details.