[eog] (21 commits) ...Merge branch 'meson-improve' into 'master'

[Felix Riemann <friemann src gnome org>]

Summary of changes:

  d9dd7df... build: Simplify icons installation procedure
  3d3668e... build: Remove unnecessary variable
  1116ad7... build: Remove unnecessary documentation installation variab
  884ed96... build: Fix meson issue regarding install_dir
  2ce1a66... build: Use / instead of join_paths
  e565132... build: Add trailing commas
  9a6780b... build: Add proper linker support check
  91d641e... build: Fix generator warning in GIR generation
  e0de5db... build: Fix pkg-config exec_prefix variable
  4ee870f... build: Do not use prefix on directory variables
  aef29b2... build: Retrieve gio schemas path from pkg-config file
  140445a... build: Define meson information early
  849564f... build: Avoid extra variable on compiler flag checking
  4b55ebe... build: Use dictionaries in configuration_data objects
  af8d0f8... build: Use generators placeholders
  6c41a99... build: Improve GtkDoc documentation generation
  0c5aa21... build: Removed unnecessary parameter
  6efb9e4... build: Move math library
  a7ee27e... build: Remove one time use variables
  5542931... build: Set values in configuration object unconditionally
  368cca1... Merge branch 'meson-improve' into 'master'