I am preparing a CRAN release of eha (a trivial change due to a change
in the survival package), but when checking the build I get:
goran@M6800:~/R$ R CMD check --as-cran eha_2.5.2.tar.gz
...
* checking compilation flags used ... WARNING
Compilation used the following non-portable flag(s):
‘-Wdate-time’ ‘-Werror=format-security’ ‘-Wformat’
...
I have never seen this before and I haven't (to my knowledge) set any
compilation flags. It is my first build and check on a newly upgraded
ubuntu 18.04 (no issues on 17.10). Should I perhaps ask on r-sig-debian,
or is that observation irrelevant?
Göran Broström
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