luarocks: move most of the patch to config.lua

See https://github.com/keplerproject/luarocks/pull/491#issuecomment-246206471

plugins/luarocks/luarocks-1-fixes.patch

@@ -25,16 +25,6 @@ diff --git a/src/luarocks/cfg.lua b/src/luarocks/cfg.lua
 index 1111111..2222222 100644
 --- a/src/luarocks/cfg.lua
 +++ b/src/luarocks/cfg.lua
-@@ -120,6 +120,9 @@ elseif system and system:match("^MINGW") then
-    cfg.platforms.windows = true
-    cfg.platforms.mingw32 = true
-    cfg.platforms.win32 = true
-+elseif system and system:match("^MXE") then
-+   cfg.platforms.unix = true
-+   cfg.platforms.mxe = true
- else
-    cfg.platforms.unix = true
-    -- Fall back to Unix in unknown systems.
 @@ -137,6 +140,7 @@ local platform_order = {
     linux = 7,
     macosx = 8,
@@ -43,48 +33,3 @@ index 1111111..2222222 100644
     -- Windows
     win32 = 10,
     mingw32 = 11,
-@@ -509,6 +513,44 @@ if cfg.platforms.unix then
-    defaults.web_browser = "xdg-open"
- end
- 
-+if cfg.platforms.mxe then
-+   local MXE_ROOT, MXE_TARGET =
-+      assert(site_config.LUAROCKS_PREFIX:match('^(.*)/usr/([^/]+)$'))
-+   defaults.lib_extension = "dll"
-+   defaults.external_lib_extension = "dll"
-+   defaults.obj_extension = "obj"
-+   defaults.external_deps_dirs = { site_config.LUAROCKS_PREFIX }
-+   defaults.arch = "mxe-" .. MXE_TARGET
-+   defaults.platforms = {"unix", "mxe"}
-+   -- LUA_INCDIR and LUA_LIBDIR are defined in site_config.lua
-+   defaults.variables.LUA_BINDIR = site_config.LUAROCKS_PREFIX .. "/bin"
-+   defaults.cmake_generator = "Unix Makefiles"
-+   defaults.variables.MAKE = os.getenv("MAKE")
-+   defaults.variables.CMAKE = MXE_ROOT .. "/usr/bin/" .. MXE_TARGET .. "-cmake"
-+   defaults.variables.CC = MXE_ROOT .. "/usr/bin/" .. MXE_TARGET .. "-gcc"
-+   defaults.variables.LD = defaults.variables.CC
-+   defaults.variables.CFLAGS = "-O2"
-+   defaults.variables.LIBFLAG = "-shared"
-+   defaults.variables.LUALIB = "liblua.dll.a"
-+
-+   defaults.export_path = "SET PATH=%s"
-+   defaults.export_path_separator = ";"
-+   defaults.export_lua_path = "SET LUA_PATH=%s"
-+   defaults.export_lua_cpath = "SET LUA_CPATH=%s"
-+   defaults.wrapper_suffix = ".bat"
-+
-+   defaults.external_deps_patterns = {
-+      bin = { "?.exe", "?.bat" },
-+      lib = { "?.dll.a", "lib?.dll.a" },
-+      include = { "?.h" }
-+   }
-+   defaults.runtime_external_deps_patterns = {
-+      bin = { "?.exe", "?.bat" },
-+      lib = { "?.dll" },
-+      include = { "?.h" }
-+   }
-+end
-+
- if cfg.platforms.cygwin then
-    defaults.lib_extension = "so" -- can be overridden in the config file for mingw builds
-    defaults.arch = "cygwin-"..cfg.target_cpu

plugins/luarocks/luarocks.mk

@@ -20,6 +20,9 @@ endef
 # shared-only because Lua loads modules in runtime
 
 define $(PKG)_BUILD_SHARED
+    # Remove LuaRocks config because we change it after installation
+    rm -f '$(PREFIX)/$(TARGET)/etc/luarocks/config-$(lua_SHORTVER).lua'
+
     cd '$(1)' && ./configure \
         --prefix='$(PREFIX)/$(TARGET)' \
         --rocks-tree='$(PREFIX)/$(TARGET)' \
@@ -33,6 +36,52 @@ define $(PKG)_BUILD_SHARED
         LUAROCKS_UNAME_M="$(TARGET)"
     $(MAKE) -C '$(1)' install
 
+    # Generate LuaRocks config.
+    ( \
+    echo '-- WARNING! This file is autogenerated by luarocks.mk.'; \
+    echo '-- It will be overwritten by `make luarocks`'; \
+    cat '$(PREFIX)/$(TARGET)/etc/luarocks/config-$(lua_SHORTVER).lua'; \
+    echo 'lib_extension = "dll"'; \
+    echo 'external_lib_extension = "dll"'; \
+    echo 'obj_extension = "obj"'; \
+    echo 'external_deps_dirs = { "$(PREFIX)" }'; \
+    echo 'arch = "mxe-$(TARGET)"'; \
+    echo 'platforms = {'; \
+    echo '    unix = true,'; \
+    echo '    mxe = true,'; \
+    echo '}'; \
+    echo 'cmake_generator = "Unix Makefiles"'; \
+    echo 'variables = {'; \
+    echo '    LUA_BINDIR = "$(PREFIX)/bin",'; \
+    echo '    MAKE = "$(MAKE)",'; \
+    echo '    CMAKE = "$(PREFIX)/bin/$(TARGET)-cmake",'; \
+    echo '    CC = "$(PREFIX)/bin/$(TARGET)-gcc",'; \
+    echo '    CXX = "$(PREFIX)/bin/$(TARGET)-g++",'; \
+    echo '    LD = "$(PREFIX)/bin/$(TARGET)-gcc",'; \
+    echo '    CFLAGS = "-O2",'; \
+    echo '    LIBFLAG = "-shared",'; \
+    echo '    LUALIB = "liblua.dll.a",'; \
+    echo '}'; \
+    echo 'export_path = "SET PATH=%s"'; \
+    echo 'export_path_separator = ";"'; \
+    echo 'export_lua_path = "SET LUA_PATH=%s"'; \
+    echo 'export_lua_cpath = "SET LUA_CPATH=%s"'; \
+    echo 'wrapper_suffix = ".bat"'; \
+    echo 'external_deps_patterns = {'; \
+    echo '  bin = { "?.exe", "?.bat" },'; \
+    echo '  lib = { "?.dll.a", "lib?.dll.a" },'; \
+    echo '  include = { "?.h" }'; \
+    echo '}'; \
+    echo 'runtime_external_deps_patterns = {'; \
+    echo '  bin = { "?.exe", "?.bat" },'; \
+    echo '  lib = { "?.dll" },'; \
+    echo '  include = { "?.h" }'; \
+    echo '}'; \
+    ) \
+        > '$(BUILD_DIR)/config.lua'
+    mv '$(BUILD_DIR)/config.lua' \
+        '$(PREFIX)/$(TARGET)/etc/luarocks/config-$(lua_SHORTVER).lua'
+
     # move installed lua file luarocks to luarocks.lua
     mv '$(PREFIX)/$(TARGET)/bin/luarocks' '$(PREFIX)/$(TARGET)/bin/luarocks.lua'