[PATCH 07/30] meson: support meson 0.64 -Doptimization=plain

[Paolo Bonzini]

In Meson 0.64, the optimization built-in option now accepts the "plain" value,
which will not set any optimization flags.  While QEMU does not check the
contents of the option and therefore does not suffer any ill effect
from the new value, it uses get_option to print the optimization flags
in the summary.  Clean the code up to remove duplication, and check for
-Doptimization=plain at the same time.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 meson.build | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/meson.build b/meson.build
index d61c7a82f112..dbd0b5563446 100644
--- a/meson.build
+++ b/meson.build
@@ -3752,18 +3752,16 @@ endif
 if targetos == 'darwin'
   summary_info += {'Objective-C compiler': ' 
'.join(meson.get_compiler('objc').cmd_array())}
 endif
-summary_info += {'CFLAGS':            ' '.join(get_option('c_args')
-                                               + ['-O' + 
get_option('optimization')]
-                                               + (get_option('debug') ? ['-g'] 
: []))}
+option_cflags = (get_option('debug') ? ['-g'] : [])
+if get_option('optimization') != 'plain'
+  option_cflags += ['-O' + get_option('optimization')]
+endif
+summary_info += {'CFLAGS':            ' '.join(get_option('c_args') + 
option_cflags)}
 if link_language == 'cpp'
-  summary_info += {'CXXFLAGS':        ' '.join(get_option('cpp_args')
-                                               + ['-O' + 
get_option('optimization')]
-                                               + (get_option('debug') ? ['-g'] 
: []))}
+  summary_info += {'CXXFLAGS':        ' '.join(get_option('cpp_args') + 
option_cflags)}
 endif
 if targetos == 'darwin'
-  summary_info += {'OBJCFLAGS':       ' '.join(get_option('objc_args')
-                                               + ['-O' + 
get_option('optimization')]
-                                               + (get_option('debug') ? ['-g'] 
: []))}
+  summary_info += {'OBJCFLAGS':       ' '.join(get_option('objc_args') + 
option_cflags)}
 endif
 link_args = get_option(link_language + '_link_args')
 if link_args.length() > 0
-- 
2.38.1