Merge branch 'master' into jgrpp

# Conflicts:
#	.github/workflows/release-linux.yml
#	.github/workflows/release-macos.yml
#	src/industry_cmd.cpp
#	src/industry_cmd.h
#	src/network/core/http_curl.cpp
#	src/network/core/tcp_http.cpp
#	src/network/core/tcp_http.h
#	src/network/network_content.h
#	src/script/api/script_goal.cpp
#	src/script/api/script_industry.cpp
#	src/script/api/script_league.cpp
#	src/script/api/script_story_page.cpp
#	src/script/api/script_town.cpp
#	src/train.h
#	src/train_cmd.cpp

CMakeLists.txt

@@ -121,6 +121,14 @@ find_package(LZO)
 find_package(ZSTD 1.4)
 find_package(PNG)
 
+if(WIN32 OR EMSCRIPTEN)
+    # Windows uses WinHttp for HTTP requests.
+    # Emscripten uses Javascript for HTTP requests.
+else()
+    # All other targets use libcurl.
+    find_package(CURL)
+endif()
+
 if(NOT OPTION_DEDICATED)
     if(NOT WIN32)
         find_package(Allegro)
@@ -331,6 +339,10 @@ link_package(LIBLZMA TARGET LibLZMA::LibLZMA ENCOURAGED)
 link_package(LZO)
 link_package(ZSTD TARGET ZSTD::ZSTD RECOMMENDED)
 
+if(NOT WIN32 AND NOT EMSCRIPTEN)
+    link_package(CURL ENCOURAGED)
+endif()
+
 if(NOT OPTION_DEDICATED)
     link_package(Fluidsynth)
     link_package(SDL)
@@ -443,6 +455,7 @@ if(WIN32)
         imm32
         usp10
         psapi
+        winhttp
     )
 endif()