[pangomm] (13 commits) Non-fast-forward update to branch use-dllexport

[Chun-wei Fan <fanchunwei src gnome org>]

The branch 'use-dllexport' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  ec4862a... pango/src/color.hg: Fix call to _CLASS_BOXEDTYPE_STATIC
  b1080d5... pango/pangommconfig.h.*: Add PANGOMM_API
  6a79692... pango/pangomm/meson.build: Define PANGOMM_BUILD
  4ee0829... pango/src/*.hg: Decorate classes and functions with PANGOMM
  d22b5a9... pango/pangomm/*.h: Decorate APIs with PANGOMM_API
  d89d891... Visual Studio builds: Do not use gendef.exe
  37af0b6... Drop gendef from the sources

Commits added to the branch:

  531d802... pango/src/color.hg: Fix call to _CLASS_BOXEDTYPE_STATIC (*)
  436ec34... Meson: allow maintainer builds on Visual Studio too (*)
  4217632... meson.build: Look for glibmm with pkg-config on MSVC too (*)
  e9ddd16... meson: Build generate_extra_defs with Visual Studio too (*)
  818c7b4... meson: Ignore warning C4251 and C4275 on MSVC builds (*)
  2efb6c9... Merge branch 'master.msvc-meson.improvements' into 'master' (*)
  b5b5745... NMake Makefiles: Fix build from Meson tarballs (*)
  01c66d6... pango/pangommconfig.h.*: Add PANGOMM_API
  bf84872... pango/pangomm/meson.build: Define PANGOMM_BUILD
  6617023... pango/src/*.hg: Decorate classes and functions with PANGOMM
  0821462... pango/pangomm/*.h: Decorate APIs with PANGOMM_API
  b66258d... Visual Studio builds: Do not use gendef.exe
  030b852... Drop gendef from the sources

(*) This commit already existed in another branch; no separate mail sent