Supposedly later versions of flex fix this... or so I heard.
On 02/10/2018 08:33 AM, Eric Anholt wrote:
> I got the following warning:
>
> src/compiler/glsl/glsl_lexer.cpp:1521:18: warning: comparison between signed
> and unsigned integer expressions [-Wsign-compare]
> for ( n = 0; n < max_size && \
> src/compiler/glsl/glsl_lexer.cpp:3448:3: note: in expansion of macro
> ‘YY_INPUT’
> YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]),
> ^~~~~~~~
>
> and it doesn't look like something from our code. Just silence it.
> ---
> src/compiler/glsl/meson.build | 11 +++++++++--
> 1 file changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/src/compiler/glsl/meson.build b/src/compiler/glsl/meson.build
> index 26ab4f1c8d3a..12bf545132fd 100644
> --- a/src/compiler/glsl/meson.build
> +++ b/src/compiler/glsl/meson.build
> @@ -199,13 +199,20 @@ files_libglsl_standalone = files(
> 'standalone.h',
> )
>
> +# flex 2.6.1 generates code with sign-compare warnings
> +glsl_lexer_warnings_suppressed = static_library('glsl-lexer',
> + glsl_lexer_cpp,
> + cpp_args : [cpp_vis_args, cpp_msvc_compat_args, '-Wno-sign-compare'],
> + include_directories : [inc_common, inc_compiler, inc_nir],
> +)
> +
> libglsl = static_library(
> 'glsl',
> - [files_libglsl, glsl_parser, glsl_lexer_cpp, ir_expression_operation_h,
> + [files_libglsl, glsl_parser, ir_expression_operation_h,
> ir_expression_operation_strings_h, ir_expression_operation_constant_h],
> c_args : [c_vis_args, c_msvc_compat_args, no_override_init_args],
> cpp_args : [cpp_vis_args, cpp_msvc_compat_args],
> - link_with : libglcpp,
> + link_with : [libglcpp, glsl_lexer_warnings_suppressed],
> include_directories : [inc_common, inc_compiler, inc_nir],
> dependencies : idep_nir,
> build_by_default : false,
>
_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/mesa-dev
