typo fix: use table.empty instead of table.isempty

compile.bat

@@ -9,5 +9,3 @@ g++ src/bllua4.cpp %buildargs% -o BlockLua.dll && g++ -DBLLUA_UNSAFE src/bllua4.
 
 rem objdump -d BlockLua.dll > BlockLua.dll.dump.txt
 rem objdump -d BlockLua-Unsafe.dll > BlockLua-Unsafe.dll.dump.txt
-
-pause

compile.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+#
+# BlockLua build script for MSYS2/MinGW32
+#
+# Usage:
+#   1. Open the MSYS2 MinGW32 shell.
+#   2. Install the required compiler with:
+#        pacman -S mingw-w64-i686-gcc
+#   3. Run this script:
+#        ./compile.sh
+#
+# If your MSYS2 installation is not on C:, adjust the g++ path below as needed.
+
+set -e
+
+cd "$(dirname "$0")"
+
+buildargs="-Wall -Werror -m32 -shared -Isrc -Iinc/tsfuncs -Iinc/lua -lpsapi -L. -llua5.1 -static-libgcc -static-libstdc++"
+
+set -x
+/mingw32/bin/g++ src/bllua4.cpp $buildargs -o BlockLua.dll && /mingw32/bin/g++ -DBLLUA_UNSAFE src/bllua4.cpp $buildargs -o BlockLua-Unsafe.dll
+set +x
+
+# objdump -d BlockLua.dll > BlockLua.dll.dump.txt
+# objdump -d BlockLua-Unsafe.dll > BlockLua-Unsafe.dll.dump.txt

src/util/libbl.lua

@@ -653,7 +653,7 @@ function bl.unhook(pkg, name, time)
 		if bl._hooks[pkg][name] then
 			if not time then
 				bl._hooks[pkg][name] = nil
-				if table.isempty(bl._hooks[pkg]) then
+				if table.empty(bl._hooks[pkg]) then
 					bl._hooks[pkg] = nil
 					deactivatePackage(pkg)
 				end
@@ -663,7 +663,7 @@ function bl.unhook(pkg, name, time)
 					error('bl.unhook: argument #3: time must be nil or one of '..
 						'\'before\' \'after\' \'override\'', 2) end
 				bl._hooks[pkg][name][time] = nil
-				if table.isempty(bl._hooks[pkg][name]) and table.empty(bl._hooks[pkg]) then
+				if table.empty(bl._hooks[pkg][name]) and table.empty(bl._hooks[pkg]) then
 					bl._hooks[pkg] = nil
 					deactivatePackage(pkg)
 				end