Field of illegal type 'float [1]' when compiling for OSX+Metal

[samw3]

Hello,
I'm trying to compile a practically empty project on OS X with the config metal-osx-xcode-debug and am receiving the following error. Any ideas?

PhaseScriptExecution CMake\ Rules /Users/samw3/prj/Ideas/GCodeMagic/fips-build/gcm/metal-osx-xcode-debug/oryol_Dbg/gcm.build/Debug/ALL_GENERATE.build/Script-08A437BE643C49A1BB4AB4CD.sh
    cd /Users/samw3/prj/Ideas/GCodeMagic/gcm
    /bin/sh -c /Users/samw3/prj/Ideas/GCodeMagic/fips-build/gcm/metal-osx-xcode-debug/oryol_Dbg/gcm.build/Debug/ALL_GENERATE.build/Script-08A437BE643C49A1BB4AB4CD.sh

echo ""

cd /Users/samw3/prj/Ideas/GCodeMagic/gcm && /usr/bin/python /Users/samw3/prj/Ideas/GCodeMagic/fips-build/gcm/metal-osx-xcode-debug/fips-gen.py /Users/samw3/prj/Ideas/GCodeMagic/fips-build/gcm/metal-osx-xcode-debug/fips_codegen.yml
## shader code gen: /Users/samw3/prj/Ideas/GCodeMagic/oryol/code/Modules/Dbg/private/DebugShaders.glsl
/Users/samw3/prj/Ideas/GCodeMagic/oryol/code/Modules/Dbg/private/DebugShaders.glsl:25:0: error:  invalid return type 'main0_out' for vertex function

/Users/samw3/prj/Ideas/GCodeMagic/oryol/code/Modules/Dbg/private/DebugShaders.glsl:25:0: error:  field of illegal type 'float [1]' declared here

/Users/samw3/prj/Ideas/GCodeMagic/fips-build/gcm/metal-osx-xcode-debug/oryol_Dbg/DebugShaders_vsDbgText.metal:26:8: error: invalid return type 'main0_out' for vertex function
vertex main0_out main0(main0_in in [[stage_in]], constant vsParams& _17 [[buffer(0)]], uint gl_VertexID [[vertex_id]], uint gl_InstanceID [[instance_id]])
       ^
/Users/samw3/prj/Ideas/GCodeMagic/fips-build/gcm/metal-osx-xcode-debug/oryol_Dbg/DebugShaders_vsDbgText.metal:23:5: note: field of illegal type 'float [1]' declared here
    float gl_ClipDistance[1] /* [[clip_distance]] built-in not yet supported under Metal. */;
    ^
1 error generated.
uniform vsParams {
vec2 glyphSize;
};
in vec4 position;
in vec4 color0;
out vec2 uv;
out vec4 color;
void main() {
vec2 screenPos = position.xy * glyphSize;
screenPos.x -= 1.0;
screenPos.y = 1.0 - screenPos.y;
gl_Position = vec4(screenPos, 0.5, 1.0);
uv = position.zw * vec2(8.0 / 1024.0, 1.0);
color = color0;
}
make: *** [/Users/samw3/prj/Ideas/GCodeMagic/fips-build/gcm/metal-osx-xcode-debug/oryol_Dbg/CMakeFiles/ALL_GENERATE] Error 10

[samw3]

I am on Catalina 10.15.5

[floooh]

Yeah, unfortunately the SPIRVCross version used in the Oryol shader compiler seems to generate Metal shader code that is no longer accepted in newer Metal versions :( My original plan was to add an Oryol output option to sokol-shdc (https://github.com/floooh/sokol-tools), which is the newer shader compiler used for the Sokol headers (https://github.com/floooh/sokol), but currently I'm focusing more on the Sokol headers.

A PR for adding a Oryol output option to sokol-shdc would be welcome though.