Add Lua 5.5 support (#473)

5 files changed, 12 insertions, 5 deletions

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 22ce0c6..96564fb 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -12,7 +12,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        luaVersion: [ "5.4", "5.3", "5.2", "5.1", "luajit", "luajit-openresty" ]
+        luaVersion: [ "5.5", "5.4", "5.3", "5.2", "5.1", "luajit", "luajit-openresty" ]
         platform: [ "ubuntu-22.04", "macos-14", "windows-2022" ]
     runs-on: ${{ matrix.platform }}
     steps:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a287d8b..8706705 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -21,6 +21,7 @@
 * Pass correct path length for abstract Unix sockets – @Zash
 * Return immediately, not block, when asked to receive 0 – @Tieske
 * Properly format IPv6 addresses with brackets in host header – @Tieske
+* Document support for Lua 5.5 (no code changes) – @alerque
 
 ## [v3.1.0](https://github.com/lunarmodules/luasocket/releases/v3.1.0) — 2022-07-27
 
diff --git a/docs/index.html b/docs/index.html
index ad92687..3341f8d 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -88,7 +88,7 @@ Author: <a href="http://www.impa.br/~diego">Diego Nehab</a>
 
 <p>
 LuaSocket version 3.1.0 is now available for download!
-It is compatible with Lua&nbsp;5.1 through 5.4.
+It is compatible with Lua&nbsp;5.1 through 5.5.
 Chances are it works well on most UNIX distributions and Windows flavors.
 </p>
 
diff --git a/makefile b/makefile
index 227ad70..f7a5859 100644
--- a/makefile
+++ b/makefile
@@ -5,7 +5,7 @@
 # Targets:
 #   install            install system independent support
 #   install-unix           also install unix-only support
-#   install-both       install for lua51 lua52 lua53
+#   install-both       install for lua51 lua52 lua53 lua54 lua55
 #   install-both-unix      also install unix-only
 #   print                  print the build settings
 
@@ -36,6 +36,9 @@ install-both:
         $(MAKE) clean
         @cd src; $(MAKE) $(PLAT) LUAV=5.4
         @cd src; $(MAKE) install LUAV=5.4
+        $(MAKE) clean
+        @cd src; $(MAKE) $(PLAT) LUAV=5.5
+        @cd src; $(MAKE) install LUAV=5.5
 
 install-both-unix:
         $(MAKE) clean
@@ -50,6 +53,9 @@ install-both-unix:
         $(MAKE) clean
         @cd src; $(MAKE) $(PLAT) LUAV=5.4
         @cd src; $(MAKE) install-unix LUAV=5.4
+        $(MAKE) clean
+        @cd src; $(MAKE) $(PLAT) LUAV=5.5
+        @cd src; $(MAKE) install-unix LUAV=5.5
 
 .PHONY: test
 
diff --git a/src/makefile b/src/makefile
index 868f98c..310fe4e 100644
--- a/src/makefile
+++ b/src/makefile
@@ -16,7 +16,7 @@
 # platform to build for
 PLAT?=linux
 
-# LUAV: 5.1 5.2 5.3 5.4
+# LUAV: 5.1 5.2 5.3 5.4 5.5
 # lua version to build against
 LUAV?=5.1
 
@@ -234,7 +234,7 @@ O_ucrt64=o
 CC_ucrt64=gcc
 DEF_ucrt64= -DLUASOCKET_$(DEBUG) \
         -DWINVER=0x0501
-CFLAGS_ucrt64= -I$(LUAINC) $(DEF) -Wall -O2 -fno-common 
+CFLAGS_ucrt64= -I$(LUAINC) $(DEF) -Wall -O2 -fno-common
 # \
         -fvisibility=hidden
 LDFLAGS_ucrt64= $(LUALIB) -shared -Wl,-s -lws2_32 -o