Description of problem:
I tried to build libssh package on Fedora 16 and build failed on following errors:
/builddir/build/BUILD/libssh-0.5.2/src/connect.c:480:37: error: ISO C forbids braced-groups within expressions [-pedantic]
/builddir/build/BUILD/libssh-0.5.2/src/connect.c:543:35: error: ISO C forbids braced-groups within expressions [-pedantic]
...

I am able to reproduce it with this:

$ cat test.c
#include <sys/select.h>

int main() {
  fd_set localset;

  FD_ZERO(&localset);
  FD_SET(0, &localset);
  return 0;
}

$ gcc -O2 -Wp,-D_FORTIFY_SOURCE=2 -pedantic -pedantic-errors  test.c
test.c: In function ‘main’:
test.c:7:3: error: ISO C forbids braced-groups within expressions [-pedantic]

$ rpm -q gcc glibc
gcc-4.6.2-1.fc16.x86_64
glibc-2.14.90-14.x86_64


libssh package was built successfully in Fedora 16 [1] with gcc-4.6.0-9.fc16 and glibc-2.13.90-9.

[1] http://koji.fedoraproject.org/koji/buildinfo?buildID=246140