Some warnings are hardcoded in QEMU_CFLAGS and not tested.  There is
no particular reason to single out these five, as many more -W flags are
present on all the supported compilers.  For homogeneity when moving
the detection to meson, make them use the same warn_flags infrastructure.

Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
---
 configure | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 113db838a16f..9c5393a25de7 100755
--- a/configure
+++ b/configure
@@ -378,8 +378,6 @@ sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 # 2s-complement style results. (Both clang and gcc agree that it
 # provides these semantics.)
 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
-QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
-QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE 
$QEMU_CFLAGS"
 
 QEMU_LDFLAGS=
@@ -1161,6 +1159,11 @@ fi
 # just silently disable some features, so it's too error prone.
 
 warn_flags=
+add_to warn_flags -Wundef
+add_to warn_flags -Wwrite-strings
+add_to warn_flags -Wmissing-prototypes
+add_to warn_flags -Wstrict-prototypes
+add_to warn_flags -Wredundant-decls
 add_to warn_flags -Wold-style-declaration
 add_to warn_flags -Wold-style-definition
 add_to warn_flags -Wtype-limits
-- 
2.38.1


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