Now that the minimum gcc version is 7.5, we can use C11.
This will allow lots of cleanups to the code, currently
hidden behind macros in include/qemu/compiler.h.

Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
 configure   | 4 ++--
 meson.build | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index 8dcb9965b2..0489864667 100755
--- a/configure
+++ b/configure
@@ -159,7 +159,7 @@ update_cxxflags() {
     # options which some versions of GCC's C++ compiler complain about
     # because they only make sense for C programs.
     QEMU_CXXFLAGS="$QEMU_CXXFLAGS -D__STDC_LIMIT_MACROS 
-D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS"
-    CONFIGURE_CXXFLAGS=$(echo "$CONFIGURE_CFLAGS" | sed 
s/-std=gnu99/-std=gnu++11/)
+    CONFIGURE_CXXFLAGS=$(echo "$CONFIGURE_CFLAGS" | sed 
s/-std=gnu11/-std=gnu++11/)
     for arg in $QEMU_CFLAGS; do
         case $arg in
             -Wstrict-prototypes|-Wmissing-prototypes|-Wnested-externs|\
@@ -538,7 +538,7 @@ QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls 
$QEMU_CFLAGS"
 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE 
$QEMU_CFLAGS"
 
 # Flags that are needed during configure but later taken care of by Meson
-CONFIGURE_CFLAGS="-std=gnu99 -Wall"
+CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 CONFIGURE_LDFLAGS=
 
 
diff --git a/meson.build b/meson.build
index a2311eda6e..d8a92666fb 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('qemu', ['c'], meson_version: '>=0.55.0',
-        default_options: ['warning_level=1', 'c_std=gnu99', 'cpp_std=gnu++11', 
'b_colorout=auto'] +
+        default_options: ['warning_level=1', 'c_std=gnu11', 'cpp_std=gnu++11', 
'b_colorout=auto'] +
                          (meson.version().version_compare('>=0.56.0') ? [ 
'b_staticpic=false' ] : []),
         version: run_command('head', meson.source_root() / 
'VERSION').stdout().strip())
 
-- 
2.25.1


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