Missing CMAKE dependency - gtkmm

[martynp]

I am not familiar enough with CMAKE, but I just encountered the following error after trying to build scopehal-apps:

In file included from /home/martyn/dev/glscopeclient/scopehal-apps/lib/graphwidget/Graph.cpp:43:
/home/martyn/dev/glscopeclient/scopehal-apps/lib/graphwidget/Graph.h:39:10: fatal error: gtkmm.h: No such file o
r directory
   39 | #include <gtkmm.h>
      |          ^~~~~~~~~

I am building on Fedora 33, the fix was to install gtkmm30-devel - but I would have expected the cmake stage to highlight the missing dependency.

[martynp]

Correction - it did highlight it but it was not critical:

-- Checking for module 'gtkmm-3.0'                                                                              
--   Package 'gtkmm-3.0', required by 'virtual:world', not found                                                
-- Checking for module 'sigc++-2.0'                                                                             
--   Package 'sigc++-2.0', required by 'virtual:world', not found                                               
-- Checking for module 'glm>=0.9.8'                                                                             
--   Found glm, version 0.9.9                                                                                   
-- Checking for one of the modules 'clFFT>=2.0'                                                                 
CMake Warning (dev) at /usr/share/cmake/Modules/FindPackageHandleStandardArgs.cmake:273 (message):              
  The package name passed to `find_package_handle_standard_args` (YAML) does                                    
  not match the name of the calling package (Yaml).  This can lead to                                           
  problems in calling code that expects `find_package` result variables                                         
  (e.g., `_FOUND`) to follow a certain pattern.                                                                 
Call Stack (most recent call first):                                                                            
  cmake/FindYaml.cmake:60 (find_package_handle_standard_args)                                                   
  src/glscopeclient/CMakeLists.txt:9 (find_package)                                                             
This warning is for project developers.  Use -Wno-dev to suppress it.                                           
                                                                                                                
-- Found components for YAML                                                                                    
-- YAML_ROOT_DIR  = /usr/local                                                                                  
-- YAML_INCLUDES  = /usr/include                                                                                
-- YAML_LIBRARIES = /usr/lib64/libyaml-cpp.so                                                                   
-- Configuring done                                                                                             
-- Generating done                                                                                              
-- Build files have been written to: /home/martyn/dev/glscopeclient/scopehal-apps/build