paleolimbot opened a new pull request, #1706:
URL: https://github.com/apache/arrow-adbc/pull/1706
Upon submitting adbcpostgresql to CRAN, there is now a build error for R 4.1
on Windows, which uses C++14 as its default standard if unspecified. This gives:
```
g++ -std=gnu++14 -I"D:/RCompile/recent/R-4.2.3/include" -DNDEBUG -I../src
-DADBC_EXPORT="" -D__USE_MINGW_ANSI_STDIO
-I"d:/rtools42/x86_64-w64-mingw32.static.posix/include" -pedantic -O2 -Wall
-mfpmath=sse -msse2 -mstackrealign -c connection.cc -o connection.o
In file included from connection.cc:37:
result_helper.h:37:8: error: 'optional' in namespace 'std' does not name a
template type
37 | std::optional<double> ParseDouble() const {
| ^~~~~~~~
result_helper.h:37:3: note: 'std::optional' is only available from C++17
onwards
```
https://www.r-project.org/nosvn/R.check/r-oldrel-windows-x86_64/adbcpostgresql-00install.html
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