Your package fontmatrix failed to build from source in current F28. https://koji.fedoraproject.org/koji/taskinfo?taskID=25026974 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild
Currently the build.log is showing CMake Error at CMakeLists.txt:65 (MESSAGE): ICU Not Found ARGH -- Configuring incomplete, errors occurred! See also "/builddir/build/BUILD/fontmatrix-0.9.99-Source/CMakeFiles/CMakeOutput.log". not sure what has changed that caused this. I know this is very old code but I am not aware of CMake build system.
Perhaps libicu version bump (F-27 fontamatrix successful build was with libicu 57.1 v.s. F-28 uses 60.2) caused F-28/rawhide build error.
So looking at fontmatrix-0.9.99-Source/cmake/modules/FindICU.cmake, it contains: 19 # This is a perverted FindICU since we rather look for ICU Layout module 20 FIND_PATH( 21 ICU_INCLUDE_DIR 22 NAMES layout/LayoutEngine.h 23 DOC "Include directory for the ICU Layout library" 24 ) and actually fontmatrix-0.9.99-Source/src/icushaper.h needs some icu layout header files. But it seems removed from icu 58: http://userguide.icu-project.org/layoutengine
Thank you Mamoru for your help here. I think time has come to let this package die. There is no upstream contributors left to work on this project https://github.com/fontmatrix/fontmatrix/commits/master I think I will retire this soon.
It is sad to see this package retired by me today but there is no upstream commits since last 7 years and no one is working on this package's code. Closing this bug now as I have retired this package for f28+