[R] Robust endian detection in CRAN xgboost build (#5232)

* [R] Robust endian detection in CRAN xgboost build

* Check for external backtrace() lib

* Update Makevars.win
This commit is contained in:
Philip Hyunsu Cho
2020-01-27 02:55:13 -08:00
committed by GitHub
parent 1b3947d929
commit 0c7455276d
4 changed files with 1060 additions and 5 deletions

1040
R-package/configure vendored

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