Unknown type name 'uuid_t'

[gbrsales]

I'm trying to build fs version 1.3.2.9000 on macOS 10.14.5. R is at version 3.6.3 (installed via Homebrew) and clang++ is 10.0.1 (clang-1001.0.46.4).

Compilation fails with the following:

$ clang++ -std=gnu++11 -I"/usr/local/Cellar/r/3.6.3_1/lib/R/include" -DNDEBUG -I. -pthread -I"/usr/local/lib/R/3.6/site-library/Rcpp/include" -fPIC  -g -O2  -c id.cc -o id.o
In file included from id.cc:4:
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/grp.h:79:25: error: unknown type name 'uuid_t'; did you mean 'uid_t'?
struct group *getgruuid(uuid_t);
                        ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/sys/_types/_uid_t.h:31:31: note: 'uid_t' declared here
typedef __darwin_uid_t        uid_t;

I've omitted other error messages for brevity, but they all mention the uuid_t type.

The problem appears to be related to Rcpp. Indeed, I modified id.cc as follows:

#ifndef __WIN32
#include <grp.h>
#include <pwd.h>
#include <sys/types.h>
#include <unistd.h>
#endif

#include <Rcpp.h>

Simply put, I have moved the Rcpp.h include after all others. Originally, it appeared on the fist line of the file. This change is sufficient to make the compilation succeed.

[gbrsales]

I'm seeing the same error when installing dplyr.

It might be an Rcpp issue. Not sure how to report it, though.

[jimhester]

This is a duplicate of #249, which is RcppCore/Rcpp#1046. It is fixed in the devel version of Rcpp, hopefully the Rcpp developers will release a patch version to CRAN soon which fixes the issue.

[apremkumar1989]

from @jimhester reply, found the commit which contains the fix.
https://github.com/RcppCore/Rcpp/pull/1047/commits

for quick fix:
copy contents from this link which contains fix into /usr/local/lib/R/3.6/site-library/Rcpp/include/Rcpp/exceptions_impl.h file on your macOS.

I tried the above and it worked.