cmake: Fix missing header installation for libobs and obs-frontend-api

cmake/Modules/ObsHelpers.cmake

@@ -249,24 +249,29 @@ endfunction()
 function(export_target target)
   set(CMAKE_EXPORT_PACKAGE_REGISTRY OFF)
 
+  if(OS_LINUX)
+    set(_EXCLUDE "")
+  else()
+    set(_EXCLUDE "EXCLUDE_FROM_ALL")
+  endif()
   install(
     TARGETS ${target}
     EXPORT ${target}Targets
     RUNTIME DESTINATION ${OBS_EXECUTABLE_DESTINATION}
             COMPONENT obs_libraries
-            EXCLUDE_FROM_ALL
+            ${_EXCLUDE}
     LIBRARY DESTINATION ${OBS_LIBRARY_DESTINATION}
             COMPONENT obs_libraries
-            EXCLUDE_FROM_ALL
+            ${_EXCLUDE}
     ARCHIVE DESTINATION ${OBS_LIBRARY_DESTINATION}
             COMPONENT obs_libraries
-            EXCLUDE_FROM_ALL
+            ${_EXCLUDE}
     INCLUDES
     DESTINATION ${OBS_INCLUDE_DESTINATION}
     PUBLIC_HEADER
       DESTINATION ${OBS_INCLUDE_DESTINATION}
       COMPONENT obs_libraries
-      EXCLUDE_FROM_ALL)
+      ${_EXCLUDE})
 
   include(GenerateExportHeader)
   generate_export_header(${target} EXPORT_FILE_NAME
@@ -301,14 +306,14 @@ function(export_target target)
     NAMESPACE OBS::
     DESTINATION ${OBS_CMAKE_DESTINATION}/${target}
     COMPONENT obs_libraries
-    EXCLUDE_FROM_ALL)
+    ${_EXCLUDE})
 
   install(
     FILES ${CMAKE_CURRENT_BINARY_DIR}/${target}Config.cmake
           ${CMAKE_CURRENT_BINARY_DIR}/${target}ConfigVersion.cmake
     DESTINATION ${OBS_CMAKE_DESTINATION}/${target}
     COMPONENT obs_libraries
-    EXCLUDE_FROM_ALL)
+    ${_EXCLUDE})
 endfunction()
 
 # Helper function to define available graphics modules for targets

cmake/Modules/ObsHelpers_Linux.cmake

@@ -93,23 +93,20 @@ function(install_headers target)
       FILES
         "${CMAKE_CURRENT_SOURCE_DIR}/audio-monitoring/pulse/pulseaudio-wrapper.h"
       DESTINATION "${OBS_INCLUDE_DESTINATION}/audio-monitoring/pulse/"
-      COMPONENT obs_libraries
-      EXCLUDE_FROM_ALL)
+      COMPONENT obs_libraries)
   endif()
 
   if(ENABLE_HEVC)
     install(
       FILES "${CMAKE_CURRENT_SOURCE_DIR}/obs-hevc.h"
       DESTINATION "${OBS_INCLUDE_DESTINATION}"
-      COMPONENT obs_libraries
-      EXCLUDE_FROM_ALL)
+      COMPONENT obs_libraries)
   endif()
 
   if(NOT EXISTS "${OBS_INCLUDE_DESTINATION}/obsconfig.h")
     install(
       FILES "${CMAKE_BINARY_DIR}/config/obsconfig.h"
       DESTINATION "${OBS_INCLUDE_DESTINATION}"
-      COMPONENT obs_libraries
-      EXCLUDE_FROM_ALL)
+      COMPONENT obs_libraries)
   endif()
 endfunction()