Adjustments mostly for Windows

Makefile

@@ -1,7 +1,8 @@
 # TEXLIVE_SRC must be a precompiled TEXLIVE build with dynamic libraries
-TEXLIVE_SRC = $(HOME)/texlive-source
+TEXLIVE_SRC = $(HOME)/texlive-mingw
+LUAMETATEX_SRC = $(HOME)/luametatex
 # We expect to find a precompiled static library compiled with -fpic here
-LUA_DIR = $(HOME)/lua/
+LUA_DIR = $(LUAMETATEX_SRC)/source/luacore/lua54/src
 # HarfBuzz also should be compiled static, position independent in a build_meson subdirectory
 HARFBUZZ_DIR = $(TEXLIVE_SRC)/Work/libs/harfbuzz
 # Graphite also should be compiled static, position independent in a build subdirectory
@@ -10,6 +11,7 @@ GRAPHITE_DIR = $(TEXLIVE_SRC)/Work/libs/graphite2
 HB_INCLUDE_DIRS = $(HARFBUZZ_DIR)/include
 TL_INCLUDE_DIRS = $(TEXLIVE_SRC)/Work/texk $(TEXLIVE_SRC)/texk
 LUA_INCLUDE_DIRS = $(LUA_DIR)
+LINK.o = $(CXX) $(LDFLAGS) $(TARGET_ARCH)
 LINK.so = $(LINK.o) -shared
 
 LUAHARFBUZZ_SRCS = $(wildcard luaharfbuzz/src/luaharfbuzz/*.c)
@@ -18,11 +20,11 @@ LUAHARFBUZZ_OBJS = $(patsubst %.c,%.o,$(LUAHARFBUZZ_SRCS))
 
 override CFLAGS += -fpic -DHAVE_DECL_ISASCII=1 $(patsubst %,-I%,$(INCLUDE_DIRS))
 # For Linux
-override LDFLAGS += -Wl,linkscript.ld
-SO_EXT = so
+# override LDFLAGS += -Wl,linkscript.ld -Wl,--gc-sections
+# SO_EXT = so
 # For Windows instead:
-# override LDFLAGS += -Wl,-version-script=versionscript
-# SO_EXT = dll
+# override LDFLAGS += -Wl,-version-script=versionscript -Wl,--gc-sections
+SO_EXT = dll
 # For MacOS instead:
 # override LDFLAGS += -Wl,-exported_symbols_list,symbols_list,-alias_list,alias_list -lc++abi
 # SO_EXT = dylib

luametalatex-kpse/lkpselib.c

@@ -863,6 +863,11 @@ static const struct luaL_Reg kpselib_l[] = {
     {NULL, NULL}                /* sentinel */
 };
 
+#ifdef _WIN32
+__declspec(dllexport)
+#else
+__attribute__ ((visibility ("default")))
+#endif
 int luaopen_kpse(lua_State * L)
 {
     luaL_newmetatable(L, KPATHSEA_METATABLE);