silence gcc's -Wall

git-svn-id: https://svn.r-project.org/R/trunk@65815 00db46b3-68df-0310-9c12-caf00c1e9a41
avoid (rare) multiple file.info call

git-svn-id: https://svn.r-project.org/R/trunk@65817 00db46b3-68df-0310-9c12-caf00c1e9a41
add comment

git-svn-id: https://svn.r-project.org/R/trunk@65819 00db46b3-68df-0310-9c12-caf00c1e9a41
add dir.exists as a .Internal and make use of it

git-svn-id: https://svn.r-project.org/R/trunk@65821 00db46b3-68df-0310-9c12-caf00c1e9a41
put back parts of r65810 not covered by dir.exists

git-svn-id: https://svn.r-project.org/R/trunk@65822 00db46b3-68df-0310-9c12-caf00c1e9a41
typo

git-svn-id: https://svn.r-project.org/R/trunk@65823 00db46b3-68df-0310-9c12-caf00c1e9a41
cosmetics (so I don't get conflicts next time)


git-svn-id: https://svn.r-project.org/R/trunk@65824 00db46b3-68df-0310-9c12-caf00c1e9a41
introduce some wrappers for legibility

git-svn-id: https://svn.r-project.org/R/trunk@65825 00db46b3-68df-0310-9c12-caf00c1e9a41
typo

git-svn-id: https://svn.r-project.org/R/trunk@65826 00db46b3-68df-0310-9c12-caf00c1e9a41
make copy of file_test at installation time

git-svn-id: https://svn.r-project.org/R/trunk@65827 00db46b3-68df-0310-9c12-caf00c1e9a41
deparsing can now use %a format for maximal reproducibility

git-svn-id: https://svn.r-project.org/R/trunk@65828 00db46b3-68df-0310-9c12-caf00c1e9a41
R_ifDEBUG_printf() for more readability; fix inf.loop

git-svn-id: https://svn.r-project.org/R/trunk@65830 00db46b3-68df-0310-9c12-caf00c1e9a41