Re: [Rd] gfortran 9 quantreg bug

2019-08-04 Thread Koenker, Roger W
Thanks Berend, Yes, I know about these warnings, they are mostly a consequence of the automated translation from the ancient Bell Labs dialect of fortran called ratfor. It is easy to add type declarations for “in” and the others, but it seems unlikely that this is going to fix anything. The

Re: [Rd] gfortran 9 quantreg bug

2019-08-04 Thread Balasubramanian Narasimhan
On 8/4/19 7:26 AM, Berend Hasselman wrote: > Roger, > > I have run > > gfortran -c -fsyntax-only -fimplicit-none -Wall -pedantic rqbr.f > > in the src folder of quantreg. > > There are many warnings about defined but not used labels. > Also two errors such as "Symbol ‘in’ at (1) has no IMPL

Re: [Rd] gfortran 9 quantreg bug

2019-08-04 Thread Dirk Eddelbuettel
Roger, On 4 August 2019 at 06:48, Koenker, Roger W wrote: | I’d like to solicit some advice on a debugging problem I have in the quantreg package. | Kurt and Brian have reported to me that on Debian machines with gfortran 9 | | library(quantreg) | f = summary(rq(foodexp ~ income, data = engel,

Re: [Rd] gfortran 9 quantreg bug

2019-08-04 Thread Berend Hasselman
Roger, I have run gfortran -c -fsyntax-only -fimplicit-none -Wall -pedantic rqbr.f in the src folder of quantreg. There are many warnings about defined but not used labels. Also two errors such as "Symbol ‘in’ at (1) has no IMPLICIT type". And warnings such as: Warning: "Possible change

Re: [Rd] Infrequent but steady NULL-pointer caused segfault in as.POSIXlt.POSIXct (R 3.4.4)

2019-08-04 Thread Sun Yijiang
A reply from stackoverflow suggests I might have hit this bug: https://sourceware.org/bugzilla/show_bug.cgi?id=14023 I can confirm that this glibc bug affects my system (latest CentOS 7). However, as far as I know, R is not multithreaded in its core. Is it possible that some library triggered th