I am trying to install a new version of ruby using rbenv. During compilation, the build fails with the error messages:
cont.c:897:9: error: use of undeclared identifier 'errno'
errno = 0;
^
cont.c:900:80: error: use of undeclared identifier 'errno'
rb_raise(rb_eFiberError, "can't alloc machine stack to fiber: %s", ERRNOMSG);
^
cont.c:862:27: note: expanded from macro 'ERRNOMSG'
#define ERRNOMSG strerror(errno)
^
cont.c:906:68: error: use of undeclared identifier 'errno'
rb_raise(rb_eFiberError, "can't set a guard page: %s", ERRNOMSG);
^
cont.c:862:27: note: expanded from macro 'ERRNOMSG'
#define ERRNOMSG strerror(errno)
^
3 errors generated.
make: *** [cont.o] Error 1
make: *** Waiting for unfinished jobs....
dir.c:562:10: error: use of undeclared identifier 'errno'
int e = errno;
^
dir.c:567:16: error: use of undeclared identifier 'EIO'
else if (e == EIO) {
^
dir.c:788:5: error: use of undeclared identifier 'errno'
errno = 0;
^
dir.c:793:10: error: use of undeclared identifier 'errno'
int e = errno;
^
dir.c:1363:17: error: use of undeclared identifier 'ENOENT'
return e == ENOENT || e == ENOTDIR;
^
dir.c:1363:32: error: use of undeclared identifier 'ENOTDIR'
return e == ENOENT || e == ENOTDIR;
^
dir.c:1401:35: error: use of undeclared identifier 'errno'
if (ret < 0 && !to_be_ignored(errno))
^
dir.c:1416:35: error: use of undeclared identifier 'errno'
if (ret < 0 && !to_be_ignored(errno))
^
dir.c:1463:10: error: use of undeclared identifier 'errno'
int e = errno;
^
dir.c:1516:10: error: use of undeclared identifier 'errno'
int e = errno;
^
dir.c:1804:21: error: use of undeclared identifier 'errno'
if (!to_be_ignored(errno))
^
dir.c:1993:18: error: use of undeclared identifier 'EACCES'
if (error == EACCES) {
^
dir.c:2221:42: error: use of undeclared identifier 'errno'
if ((magical < 2) && !recursive && (errno == EACCES)) {
^
dir.c:2221:51: error: use of undeclared identifier 'EACCES'
if ((magical < 2) && !recursive && (errno == EACCES)) {
^
dir.c:3292:10: error: use of undeclared identifier 'errno'
int e = errno;
^
15 errors generated.
make: *** [dir.o] Error 1
I've searched everywhere for how to fix this issue, with no success.
I also receive the error when trying to install the rails gem. It seems to be a system issue.
Any help resolving this would be appreciated.
macOS Mojave - 10.14.3
Xcode 10.1 with CLI tools installed