.gitea/workflows/build.yml

@@ -79,6 +79,7 @@ jobs:
 
       - name: Show what was built
         run: |
+          ls -la .deps/Frameworks/libobs.framework/Resources/cmake || true
           ls -la build/package/bin || true
           otool -L build/package/bin/streamer-tools-camera.so || true
 

CMakeLists.txt

@@ -35,6 +35,17 @@ list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/common")
 # a from-source libobs build.
 option(STPLUGIN_BOOTSTRAP_OBS "Download and build libobs from source (macOS/Windows)" ON)
 
+# Fallbacks for imported targets that were exported under a different
+# configuration name than the one being built, lifted from
+# obs-plugintemplate's cmake/common/bootstrap.cmake. Without these, an
+# imported libobs exported as (say) RelWithDebInfo fails a Release build with
+# "IMPORTED_LOCATION or IMPORTED_IMPLIB not set for imported target
+# OBS::libobs configuration Release".
+set(CMAKE_MAP_IMPORTED_CONFIG_RELEASE Release RelWithDebInfo MinSizeRel None "")
+set(CMAKE_MAP_IMPORTED_CONFIG_RELWITHDEBINFO RelWithDebInfo Release MinSizeRel None "")
+set(CMAKE_MAP_IMPORTED_CONFIG_MINSIZEREL MinSizeRel Release RelWithDebInfo None "")
+set(CMAKE_MAP_IMPORTED_CONFIG_DEBUG Debug RelWithDebInfo Release MinSizeRel None "")
+
 include(osconfig)
 if(STPLUGIN_BOOTSTRAP_OBS AND (OS_MACOS OR OS_WINDOWS))
     if(OS_MACOS)

cmake/common/buildspec_common.cmake

@@ -163,11 +163,19 @@ function(_setup_obs_studio)
 
   if(OS_WINDOWS)
     set(_cmake_generator "${CMAKE_GENERATOR}")
-    if(CMAKE_VS_WINDOWS_TARGET_PLATFORM_VERSION)
+    # Plain "-A x64", NOT upstream's "-A x64,version=<Windows SDK>". With a
-      list(APPEND _cmake_arch -A "${arch},version=${CMAKE_VS_WINDOWS_TARGET_PLATFORM_VERSION}")
+    # current CMake the ",version=" suffix comes back out verbatim in the
-    else()
+    # sub-build's CMAKE_VS_PLATFORM_NAME, and obs-studio's OWN dependency
+    # downloader keys its release assets off that value -- so the sub-configure
+    # goes looking for a file that cannot exist:
+    #
+    #   string sub-command JSON member 'hashes windows-x64,version=10.0.26100.0'
+    #     not found
+    #   Unable to download .../windows-deps-2023-11-03-x64,version=10.0.26100.0.zip
+    #
+    # The Windows SDK is selected automatically anyway ("Selecting Windows SDK
+    # version 10.0.26100.0"), and CMAKE_SYSTEM_VERSION is passed below.
     list(APPEND _cmake_arch -A "${arch}")
-    endif()
     list(APPEND _cmake_extra "-DCMAKE_SYSTEM_VERSION=${CMAKE_SYSTEM_VERSION}")
   elseif(OS_MACOS)
     # Ninja, not upstream's Xcode generator. A runner with only the Command
@@ -216,25 +224,38 @@ function(_setup_obs_studio)
   )
   message(STATUS "Build ${label} (Release - ${arch}) - done")
 
-  # Install only libobs's own rules, not the whole build tree's. Installing
+  # Install the whole build tree, and tolerate a non-zero exit.
-  # from the top-level build directory walks every subproject's
+  #
-  # cmake_install.cmake, including UI/obs-frontend-api's, which then fails on
+  # Installing from the top-level build directory walks every subproject's
-  # a binary that was deliberately never built:
+  # cmake_install.cmake, including UI/obs-frontend-api's, which fails on a
+  # binary this build deliberately never produced (that is the whole point of
+  # dropping Qt):
   #
   #   file INSTALL cannot find ".../obs-frontend-api.dylib": No such file
   #
-  # Pointing --install at the libobs subdirectory installs the framework /
+  # Restricting --install to the libobs subdirectory avoids that error, but
-  # import library, the headers, and libobsConfig.cmake + libobsTargets.cmake
+  # then the per-configuration export file (libobsTargets-release.cmake) never
-  # -- everything find_package(libobs) needs -- and nothing else.
+  # lands, and every consumer fails with "IMPORTED_LOCATION or IMPORTED_IMPLIB
+  # not set for imported target OBS::libobs configuration Release". So run the
+  # full install exactly as upstream does, let it get through libobs, and
+  # ignore the error it hits afterwards. If libobs really did not install, the
+  # find_package(libobs) in the top-level CMakeLists is where that surfaces --
+  # loudly, and with a far more useful message than a half-installed tree.
   message(STATUS "Install ${label} (${arch})")
   execute_process(
     COMMAND
-      "${CMAKE_COMMAND}" --install build_${arch}/libobs --component Development --config Release --prefix
+      "${CMAKE_COMMAND}" --install build_${arch} --component Development --config Release --prefix "${dependencies_dir}"
-      "${dependencies_dir}"
     WORKING_DIRECTORY "${dependencies_dir}/${_obs_destination}"
-    RESULT_VARIABLE _process_result
+    RESULT_VARIABLE _install_result
-    COMMAND_ERROR_IS_FATAL ANY
+    OUTPUT_QUIET
   )
+  if(NOT _install_result EQUAL 0)
+    message(
+      STATUS
+      "Install ${label} (${arch}) reported errors; expected, because install rules exist for "
+      "targets this build skips. Continuing -- find_package(libobs) is the real check."
+    )
+  endif()
   message(STATUS "Install ${label} (${arch}) - done")
 endfunction()