[Bug c++/61012] New: lto1: errors during merging of translation units (error:=?UTF-8?Q?=20variable=20=E2=80=98link=E2=80=99=20redeclared=20as=20function?=)

[mliska at suse dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61012

            Bug ID: 61012
           Summary: lto1: errors during merging of translation units
                    (error: variable ‘link’ redeclared as function)
           Product: gcc
           Version: 4.10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: mliska at suse dot cz

$ cat a.c
struct s
{
  int a;
  int b;
};

static struct s link = { 1, 2 };

int foo()
{
  return link.a;
}

$ cat b.c
#include <unistd.h>

int main()
{
  int r = link("aaa", "bbb");

  return foo();
}

$ gcc a.c b.c -flto -O2

/usr/include/unistd.h:812:12: error: variable ‘link’ redeclared as function
 extern int link (const char *__from, const char *__to)
            ^
a.c:7:17: note: previously declared here
 static struct s link = { 1, 2 };
                 ^
lto1: fatal error: errors during merging of translation units
compilation terminated.
lto-wrapper: gcc returned 1 exit status
/home/marxin/Programming/bin/gcc2/lib64/gcc/x86_64-unknown-linux-gnu/4.10.0/../../../../x86_64-unknown-linux-gnu/bin/ld:
fatal error: lto-wrapper failed
collect2: error: ld returned 1 exit status