Does this also fail when trying to compile a file, or is it just the REPL?

(This failure usually means the clang/ folder inside Swift's resource dir—usually lib/swift/—is missing.)

Comment by Peter (JIRA)

For me it works when I compile a file, but fails in the REPL.

Comment by Peter (JIRA)

This was actually reported by Chris Double in December 2016:

https://lists.swift.org/pipermail/swift-users/Week-of-Mon-20161219/004206.html

He wrote:

---------------~~~~8<~~~~----------------

If I explicitly pass include paths to 'swift' it works in the REPL:

---------------~~~~8<~~~~----------------
$ swift -I/home/user/swift-install/usr/lib/swift/clang/include/
-I/home/user/swift-install/usr/include/lldb/Symbol/
Welcome to Swift version 3.1-dev (LLVM 7d4a331ed3, Clang d8c33dc710,
Swift 2ea7951). Type :help for assistance.
1> import Glibc
2> random()
$R0: Int = 1804289383
---------------~~~~8<~~~~----------------

Okay, retagging as LLDB.

@belkadan Whatever we should do, we should see why the integration tests did not catch this. The integration tests before we send out the package is supposed to run something in the repl. Maybe it is running it in the old repl?

jingham@apple.com (JIRA User), who should be looking at this?

Comment by Hugh Bellamy (JIRA)

I'n getting a similar error here: apple/swift#7490

I'm experiencing a similar error with current master on Arch Linux. Importing Foundation or Dispatch fails unless I pass -I /usr/lib/swift/clang/include/ to swift. However, I can successfully import Glibc, even though from what I can see in the headers, that too imports stddef.h, so I am unsure why importing Glibc does not fail as well.

Comment by Peter (JIRA)

I tried the newly released swift 3.1 and the problem is still present.

Comment by Timothy S Hawkins (JIRA)

I am getting the same issue on Fedora 25, however i can move on by adding the symlink

cd /usr/include
sudo ln -s linux x86_64-linux-gnu

However when I do that I subsequently get the following, This worked fine on swift-3.0.2-RELEASE tag, it only fails on swift-3.1-RELEASE

[thawkins@timdev05 bin]$ ./swift
Welcome to Swift version 3.1 (swift-3.1-RELEASE). Type :help for assistance.
1> import Glibc
<module-includes>:2:10: note: in file included from <module-includes>:2:
#include "///usr/include/pty.h"
^

///usr/include/pty.h:28:10: note: in file included from ///usr/include/pty.h:28:
#include <sys/ioctl.h>
^

/usr/include/sys/ioctl.h:29:10: note: in file included from /usr/include/sys/ioctl.h:29:
#include <bits/ioctl-types.h>
^

error: /usr/include/bits/ioctl-types.h:27:8: error: redefinition of 'winsize'
struct winsize
^

/usr/include/asm-generic/termios.h:14:8: note: previous definition is here
struct winsize {
^

<module-includes>:2:10: note: in file included from <module-includes>:2:
#include "///usr/include/pty.h"
^

///usr/include/pty.h:28:10: note: in file included from ///usr/include/pty.h:28:
#include <sys/ioctl.h>
^

/usr/include/sys/ioctl.h:29:10: note: in file included from /usr/include/sys/ioctl.h:29:
#include <bits/ioctl-types.h>
^

error: /usr/include/bits/ioctl-types.h:36:8: error: redefinition of 'termio'
struct termio
^

/usr/include/asm-generic/termios.h:22:8: note: previous definition is here
struct termio {
^

<module-includes>:3:10: note: in file included from <module-includes>:3:
#include "///usr/include/utmp.h"
^

///usr/include/utmp.h:23:10: note: in file included from ///usr/include/utmp.h:23:
#include <sys/types.h>
^

/usr/include/sys/types.h:219:11: note: in file included from /usr/include/sys/types.h:219:

1. include <sys/select.h>
   ^

/usr/include/sys/select.h:47:10: note: in file included from /usr/include/sys/select.h:47:
#include <bits/time.h>
^

error: /usr/include/bits/time.h:30:8: error: redefinition of 'timeval'
struct timeval
^

/usr/include/x86_64-linux-gnu/time.h:15:8: note: previous definition is here
struct timeval {
^

<module-includes>:3:10: note: in file included from <module-includes>:3:
#include "///usr/include/utmp.h"
^

///usr/include/utmp.h:29:10: note: in file included from ///usr/include/utmp.h:29:
#include <bits/utmp.h>
^

/usr/include/bits/utmp.h:24:10: note: in file included from /usr/include/bits/utmp.h:24:
#include <sys/time.h>
^

error: /usr/include/sys/time.h:55:8: error: redefinition of 'timezone'
struct timezone
^

/usr/include/x86_64-linux-gnu/time.h:20:8: note: previous definition is here
struct timezone {
^

<module-includes>:3:10: note: in file included from <module-includes>:3:
#include "///usr/include/utmp.h"
^

///usr/include/utmp.h:29:10: note: in file included from ///usr/include/utmp.h:29:
#include <bits/utmp.h>
^

/usr/include/bits/utmp.h:24:10: note: in file included from /usr/include/bits/utmp.h:24:
#include <sys/time.h>
^

error: /usr/include/sys/time.h:94:5: error: expected identifier
ITIMER_REAL = 0,
^

/usr/include/x86_64-linux-gnu/time.h:30:22: note: expanded from macro 'ITIMER_REAL'
#define ITIMER_REAL 0
^

<module-includes>:3:10: note: in file included from <module-includes>:3:
#include "///usr/include/utmp.h"
^

///usr/include/utmp.h:29:10: note: in file included from ///usr/include/utmp.h:29:
#include <bits/utmp.h>
^

/usr/include/bits/utmp.h:24:10: note: in file included from /usr/include/bits/utmp.h:24:
#include <sys/time.h>
^

error: /usr/include/sys/time.h:97:5: error: expected identifier
ITIMER_VIRTUAL = 1,
^

/usr/include/x86_64-linux-gnu/time.h:31:25: note: expanded from macro 'ITIMER_VIRTUAL'
#define ITIMER_VIRTUAL 1
^

<module-includes>:3:10: note: in file included from <module-includes>:3:
#include "///usr/include/utmp.h"
^

///usr/include/utmp.h:29:10: note: in file included from ///usr/include/utmp.h:29:
#include <bits/utmp.h>
^

/usr/include/bits/utmp.h:24:10: note: in file included from /usr/include/bits/utmp.h:24:
#include <sys/time.h>
^

error: /usr/include/sys/time.h:101:5: error: expected identifier
ITIMER_PROF = 2
^

/usr/include/x86_64-linux-gnu/time.h:32:22: note: expanded from macro 'ITIMER_PROF'
#define ITIMER_PROF 2
^

<module-includes>:3:10: note: in file included from <module-includes>:3:
#include "///usr/include/utmp.h"
^

///usr/include/utmp.h:29:10: note: in file included from ///usr/include/utmp.h:29:
#include <bits/utmp.h>
^

/usr/include/bits/utmp.h:24:10: note: in file included from /usr/include/bits/utmp.h:24:
#include <sys/time.h>
^

error: /usr/include/sys/time.h:107:8: error: redefinition of 'itimerval'
struct itimerval
^

/usr/include/x86_64-linux-gnu/time.h:39:8: note: previous definition is here
struct itimerval {
^

<module-includes>:12:10: note: in file included from <module-includes>:12:
#include "///usr/include/signal.h"
^

///usr/include/signal.h:323:11: note: in file included from ///usr/include/signal.h:323:

1. include <bits/sigstack.h>
   ^

error: /usr/include/bits/sigstack.h:53:5: error: unknown type name 'size_t'; did you mean 'ssize_t'?
size_t ss_size;
^

/usr/include/sys/types.h:109:19: note: 'ssize_t' declared here
typedef __ssize_t ssize_t;
^

<module-includes>:12:10: note: in file included from <module-includes>:12:
#include "///usr/include/signal.h"
^

///usr/include/signal.h:326:12: note: in file included from ///usr/include/signal.h:326:

1. include <sys/ucontext.h>
   ^

/usr/include/sys/ucontext.h:22:10: note: in file included from /usr/include/sys/ucontext.h:22:
#include <signal.h>
^

/usr/include/x86_64-linux-gnu/signal.h:4:10: note: in file included from /usr/include/x86_64-linux-gnu/signal.h:4:
#include <asm/signal.h>
^

error: /usr/include/asm/signal.h:15:23: error: typedef redefinition with different types ('unsigned long' vs '__sigset_t')
typedef unsigned long sigset_t;
^

/usr/include/sys/select.h:37:20: note: previous definition is here
typedef __sigset_t sigset_t;
^

<module-includes>:12:10: note: in file included from <module-includes>:12:
#include "///usr/include/signal.h"
^

///usr/include/signal.h:326:12: note: in file included from ///usr/include/signal.h:326:

1. include <sys/ucontext.h>
   ^

/usr/include/sys/ucontext.h:22:10: note: in file included from /usr/include/sys/ucontext.h:22:
#include <signal.h>
^

/usr/include/x86_64-linux-gnu/signal.h:4:10: note: in file included from /usr/include/x86_64-linux-gnu/signal.h:4:
#include <asm/signal.h>
^

error: /usr/include/asm/signal.h:114:8: error: redefinition of 'sigaction'
struct sigaction {
^

/usr/include/bits/sigaction.h:24:8: note: previous definition is here
struct sigaction
^

<module-includes>:12:10: note: in file included from <module-includes>:12:
#include "///usr/include/signal.h"
^

///usr/include/signal.h:326:12: note: in file included from ///usr/include/signal.h:326:

1. include <sys/ucontext.h>
   ^

/usr/include/sys/ucontext.h:22:10: note: in file included from /usr/include/sys/ucontext.h:22:
#include <signal.h>
^

/usr/include/x86_64-linux-gnu/signal.h:4:10: note: in file included from /usr/include/x86_64-linux-gnu/signal.h:4:
#include <asm/signal.h>
^

error: /usr/include/asm/signal.h:115:17: error: expected ';' at end of declaration list
__sighandler_t sa_handler;
^

/usr/include/bits/sigaction.h:36:40: note: expanded from macro 'sa_handler'

1. define sa_handler __sigaction_handler.sa_handler
   ^

<module-includes>:12:10: note: in file included from <module-includes>:12:
#include "///usr/include/signal.h"
^

///usr/include/signal.h:326:12: note: in file included from ///usr/include/signal.h:326:

1. include <sys/ucontext.h>
   ^

/usr/include/sys/ucontext.h:22:10: note: in file included from /usr/include/sys/ucontext.h:22:
#include <signal.h>
^

/usr/include/x86_64-linux-gnu/signal.h:4:10: note: in file included from /usr/include/x86_64-linux-gnu/signal.h:4:
#include <asm/signal.h>
^

error: /usr/include/asm/signal.h:123:16: error: redefinition of 'sigaltstack'
typedef struct sigaltstack {
^

/usr/include/bits/sigstack.h:49:16: note: previous definition is here
typedef struct sigaltstack
^

<module-includes>:12:10: note: in file included from <module-includes>:12:
#include "///usr/include/signal.h"
^

///usr/include/signal.h:326:12: note: in file included from ///usr/include/signal.h:326:

1. include <sys/ucontext.h>
   ^

/usr/include/sys/ucontext.h:22:10: note: in file included from /usr/include/sys/ucontext.h:22:
#include <signal.h>
^

/usr/include/x86_64-linux-gnu/signal.h:4:10: note: in file included from /usr/include/x86_64-linux-gnu/signal.h:4:
#include <asm/signal.h>
^

error: /usr/include/asm/signal.h:126:2: error: unknown type name 'size_t'; did you mean 'ssize_t'?
size_t ss_size;
^

/usr/include/sys/types.h:109:19: note: 'ssize_t' declared here
typedef __ssize_t ssize_t;
^

<module-includes>:12:10: note: in file included from <module-includes>:12:
#include "///usr/include/signal.h"
^

///usr/include/signal.h:326:12: note: in file included from ///usr/include/signal.h:326:

1. include <sys/ucontext.h>
   ^

/usr/include/sys/ucontext.h:22:10: note: in file included from /usr/include/sys/ucontext.h:22:
#include <signal.h>
^

/usr/include/x86_64-linux-gnu/signal.h:4:10: note: in file included from /usr/include/x86_64-linux-gnu/signal.h:4:
#include <asm/signal.h>
^

error: /usr/include/asm/signal.h:127:3: error: typedef redefinition with different types ('struct (anonymous struct at /usr/include/asm/signal.h:123:16)' vs 'struct sigaltstack')
} stack_t;
^

/usr/include/bits/sigstack.h:54:5: note: previous definition is here
} stack_t;
^

<module-includes>:12:10: note: in file included from <module-includes>:12:
#include "///usr/include/signal.h"
^

///usr/include/signal.h:326:12: note: in file included from ///usr/include/signal.h:326:

1. include <sys/ucontext.h>
   ^

/usr/include/sys/ucontext.h:22:10: note: in file included from /usr/include/sys/ucontext.h:22:
#include <signal.h>
^

/usr/include/x86_64-linux-gnu/signal.h:5:10: note: in file included from /usr/include/x86_64-linux-gnu/signal.h:5:
#include <asm/siginfo.h>
^

/usr/include/asm/siginfo.h:14:10: note: in file included from /usr/include/asm/siginfo.h:14:
#include <asm-generic/siginfo.h>
^

error: /usr/include/asm-generic/siginfo.h:7:15: error: redefinition of 'sigval'
typedef union sigval {
^

/usr/include/bits/siginfo.h:32:15: note: previous definition is here
typedef union sigval
^

<module-includes>:12:10: note: in file included from <module-includes>:12:
#include "///usr/include/signal.h"
^

///usr/include/signal.h:326:12: note: in file included from ///usr/include/signal.h:326:

1. include <sys/ucontext.h>
   ^

/usr/include/sys/ucontext.h:22:10: note: in file included from /usr/include/sys/ucontext.h:22:
#include <signal.h>
^

/usr/include/x86_64-linux-gnu/signal.h:5:10: note: in file included from /usr/include/x86_64-linux-gnu/signal.h:5:
#include <asm/siginfo.h>
^

/usr/include/asm/siginfo.h:14:10: note: in file included from /usr/include/asm/siginfo.h:14:
#include <asm-generic/siginfo.h>
^

error: /usr/include/asm-generic/siginfo.h:10:3: error: typedef redefinition with different types ('union (anonymous union at /usr/include/asm-generic/siginfo.h:7:15)' vs 'union sigval')
} sigval_t;
^

/usr/include/bits/siginfo.h:36:5: note: previous definition is here
} sigval_t;
^

<module-includes>:12:10: note: in file included from <module-includes>:12:
#include "///usr/include/signal.h"
^

///usr/include/signal.h:326:12: note: in file included from ///usr/include/signal.h:326:

1. include <sys/ucontext.h>
   ^

/usr/include/sys/ucontext.h:22:10: note: in file included from /usr/include/sys/ucontext.h:22:
#include <signal.h>
^

/usr/include/x86_64-linux-gnu/signal.h:5:10: note: in file included from /usr/include/x86_64-linux-gnu/signal.h:5:
#include <asm/siginfo.h>
^

/usr/include/asm/siginfo.h:14:10: note: in file included from /usr/include/asm/siginfo.h:14:
#include <asm-generic/siginfo.h>
^

error: /usr/include/asm-generic/siginfo.h:118:24: error: typedef redefinition with different types ('struct siginfo' vs 'struct siginfo_t')
} __ARCH_SI_ATTRIBUTES siginfo_t;
^

/usr/include/bits/siginfo.h:133:5: note: previous definition is here
} siginfo_t __SI_ALIGNMENT;
^

<module-includes>:12:10: note: in file included from <module-includes>:12:
#include "///usr/include/signal.h"
^

///usr/include/signal.h:326:12: note: in file included from ///usr/include/signal.h:326:

1. include <sys/ucontext.h>
   ^

/usr/include/sys/ucontext.h:22:10: note: in file included from /usr/include/sys/ucontext.h:22:
#include <signal.h>
^

/usr/include/x86_64-linux-gnu/signal.h:5:10: note: in file included from /usr/include/x86_64-linux-gnu/signal.h:5:
#include <asm/siginfo.h>
^

/usr/include/asm/siginfo.h:14:10: note: in file included from /usr/include/asm/siginfo.h:14:
#include <asm-generic/siginfo.h>
^

error: /usr/include/asm-generic/siginfo.h:290:16: error: redefinition of 'sigevent'
typedef struct sigevent {
^

/usr/include/bits/siginfo.h:320:16: note: previous definition is here
typedef struct sigevent
^

error: too many errors emitted, stopping now
error: could not build Objective-C module 'SwiftGlibc'

Comment by Hugh Bellamy (JIRA)

Feel like submitting a PR to add this to the CMake build?

Comment by Ryan Lovelett (JIRA)

This is also effecting ldb. Is there an equivalent to send -I/path/to/usr/lib/swift/clang/include to lldb?

Comment by Rick M (JIRA)

This was affecting me on Ubuntu 16.04, importing Glibc, in the swift repl. It does not seem to affect switfc

Comment by Vivian Kong (JIRA)

I saw the same error in REPL on Linux on s390x (it used to work in 3.0.2). The workaround mentioned above allows me to import Glibc but I can't import Foundation/Dispatch etc. Any ideas on what might be the problem? Thanks.

$ ./swift -I/home/tester/swift31/install/usr/lib/swift/clang/include
Welcome to Swift version 3.1.1-dev (LLVM 9cb6a3ccee, Clang f38438fc01, Swift 8d233b16cb). Type :help for assistance.
1> import Glibc
2> import Foundation
error: repl.swift:2:8: error: no such module 'Foundation'
import Foundation
^

2> import Dispatch
error: repl.swift:2:8: error: no such module 'Dispatch'
import Dispatch
^

Comment by Matthias M. Schneider (JIRA)

Please see the comment on issue SR-5524 for a possible temporary fix.

This seems to work with a recent lldb

./build/Ninja-ReleaseAssert/lldb-linux-x86_64/bin/lldb --repl
Welcome to Swift version 5.1.1-dev (LLVM 7ade6a3e01, Swift cc60f2c351).
Type :help for assistance.
  1> import Glibc
  2>

Please try again and let us know!