diff options
| author | Thomas Huth <thuth@redhat.com> | 2018-11-30 09:23:16 +0100 |
|---|---|---|
| committer | Thomas Huth <thuth@redhat.com> | 2019-01-22 06:26:31 +0100 |
| commit | 798b858130a92f45540e655253b62ddd733ded8c (patch) | |
| tree | 0c9178131ea2d45590a5f88ba6a4cc97227b70a5 /include | |
| parent | b0b36c021b95eb69451a3e540c9b029a8fb5e21b (diff) | |
linux-user: Fix compilation with clang 3.4
Clang version 3.4.2 does not know the -Wpragmas option yet and bails
out with an error when we try to disable it in linux-user/qemu.h.
Fortunately, clang has a __has_warning() macro which allows us to add
an explicit check for the option that we want to ignore. With that we
can check for the availability of "-Waddress-of-packed-member" properly
and do not need the "-Wpragmas" at all here.
Fixes: 850d5e330a9c68cc998cecc02caf8a3c8d1ee8a3
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/qemu/compiler.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/qemu/compiler.h b/include/qemu/compiler.h index 2d8f507c73..296b2fd572 100644 --- a/include/qemu/compiler.h +++ b/include/qemu/compiler.h @@ -113,6 +113,10 @@ #define GCC_FMT_ATTR(n, m) #endif +#ifndef __has_warning +#define __has_warning(x) 0 /* compatibility with non-clang compilers */ +#endif + #ifndef __has_feature #define __has_feature(x) 0 /* compatibility with non-clang compilers */ #endif |