darktable

Hi everyone,

following the instructions in build.txt I tried to build dt for windows using MSYS2. I managed to set up MSYS2, libs an so on but failed to build darktable via

$ cmake -G "MSYS Makefiles" -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/opt/darktable ../.

cmake runs until it complains that it can't find GTK3:

:
:
-- Found Glib
-- Checking for module 'gtk+-3.0'
-- No package 'gtk+-3.0' found
CMake Error at C:/msys64/mingw64/share/cmake-3.12/Modules/FindPackageHandleStandardArgs.cmake:137 (message):
Could NOT find GTK3 (missing: GTK3_INCLUDE_DIRS GTK3_LIBRARIES) (Required
is at least version "3.14")
Call Stack (most recent call first):
C:/msys64/mingw64/share/cmake-3.12/Modules/FindPackageHandleStandardArgs.cmake:378 (_FPHSA_FAILURE_MESSAGE)
cmake/modules/FindGTK3.cmake:58 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
src/CMakeLists.txt:252 (find_package)
:
:

=============

This is what pacman says:

$ pacman -Ss gtk3
mingw32/mingw-w64-i686-gtk3 3.24.1-1 [Installiert]
GObject-based multi-platform GUI toolkit (v3) (mingw-w64)
mingw32/mingw-w64-i686-gtkmm3 3.22.2-1
C++ bindings for gtk3 (mingw-w64)
mingw32/mingw-w64-i686-spice-gtk 0.33-1
GTK3 widget for SPICE clients (mingw-w64)
mingw32/mingw-w64-i686-webkitgtk3 2.4.11-6
GTK+ Web content engine library (mingw-w64)
mingw64/mingw-w64-x86_64-gtk3 3.24.1-1 [Installiert]
GObject-based multi-platform GUI toolkit (v3) (mingw-w64)
mingw64/mingw-w64-x86_64-gtkmm3 3.22.2-1 [Installiert]
C++ bindings for gtk3 (mingw-w64)
mingw64/mingw-w64-x86_64-spice-gtk 0.35-1 [Installiert]
GTK3 widget for SPICE clients (mingw-w64)
mingw64/mingw-w64-x86_64-webkitgtk3 2.4.11-6
GTK+ Web content engine library (mingw-w64)

===========

I tried to skip GTK3 and cmake stops again at lensfun:

:
:
-- Found Glib
-- Checking for one of the modules 'libsoup-2.4;libsoup2'
-- Checking for one of the modules 'libsoup-2.2;libsoup2'
CMake Error at C:/msys64/mingw64/share/cmake-3.12/Modules/FindPackageHandleStandardArgs.cmake:137 (message):
Could NOT find LENSFUN (missing: LENSFUN_INCLUDE_DIR)
Call Stack (most recent call first):
C:/msys64/mingw64/share/cmake-3.12/Modules/FindPackageHandleStandardArgs.cmake:378 (_FPHSA_FAILURE_MESSAGE)
cmake/modules/FindLensFun.cmake:37 (find_package_handle_standard_args)
src/CMakeLists.txt:302 (find_package)
:
:

==================

... which is installed, too:
$ pacman -Ss lensfun
mingw32/mingw-w64-i686-lensfun 0.3.95-1
Database of photographic lenses and a library that allows advanced access to the database (mingw-w64)
mingw64/mingw-w64-x86_64-lensfun 0.3.95-1 [Installiert]
Database of photographic lenses and a library that allows advanced access to the database (mingw-w64)

=============================

It seems as if all (mingw-w64-x86_64-)prefixed packages can't be found. Am I missing something ? Maybe an additional path information ?

Logfiles for the latter test (lensfun) are added below.

Hoping for help
Jürgen