Package: clang
Version: 1:3.0-6.2
Severity: minor
clang issues a warning when GCC's self-initialization trick as
described on http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36296#c3
is used. This is a bug a clang claims GNUC compatibility. See the
following testcase.
int foo (void);
void bar (int);
void f (void)
{
int init = 0;
#if defined(__GNUC__)
int x = x;
#else
int x;
#endif
while (1)
{
if (init == 0)
{
x = foo ();
init = 2;
}
bar (x);
}
}
Here, GCC's trick is necessary to avoid a warning with GCC. This
is protected with the "#if defined(__GNUC__)". Unfortunately clang
defines __GNUC__ and doesn't support this trick, which has the
effect to issue a warning instead of avoiding one.
-- System Information:
Debian Release: 7.0
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1,
'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 3.8-trunk-amd64 (SMP w/2 CPU cores)
Locale: LANG=POSIX, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages clang depends on:
ii libc6 2.13-38
ii libclang-common-dev 1:3.3~svn177638-1
ii libffi5 3.0.10-3
ii libgcc1 1:4.7.2-5
ii libllvm3.0 3.0-10
ii libstdc++6 4.7.2-5
ii libstdc++6-4.6-dev 4.6.3-15
Versions of packages clang recommends:
ii llvm-3.0-dev 3.0-10
ii python 2.7.3-4
clang suggests no packages.
-- no debconf information
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