Build failing on yacc error

[do-you-dare]

Hello! I've been trying to build toy, and had this problem. I've got no errors building bgfx, but had the same error trying to build the mud-sample as the README specifies. This is the error after running make for the second time - the error is the same as the first, but this second run is more legible.

➜  gmake-linux git:(master) make config=debug64
==== Building fcpp (debug64) ====
==== Building glslang (debug64) ====
==== Building glsl-optimizer (debug64) ====
yacc  ../../../mud/3rdparty/bgfx/3rdparty/glsl-optimizer/src/glsl/glcpp/glcpp-parse.y 
yacc: e - line 164 of "../../../mud/3rdparty/bgfx/3rdparty/glsl-optimizer/src/glsl/glcpp/glcpp-parse.y", syntax error
%locations
^
make[1]: *** [<builtin>: ../../../mud/3rdparty/bgfx/3rdparty/glsl-optimizer/src/glsl/glcpp/glcpp-parse.c] Error 1
make: *** [Makefile:69: glsl-optimizer] Error 2

I'm currently using Fedora 28, yacc 1.9.

Kudos for your awesome projects!

[gbbnfhb]

bkaradzic/bgfx#304 (comment)

[do-you-dare]

@gbbnfhb , thanks, it worked!