lua51: adopted port

lua51/.signature

@@ -1,6 +1,6 @@
 untrusted comment: verify with /etc/ports/opt.pub
-RWSE3ohX2g5d/ZygDCgA4/Oazw628wPIZmGwdJdiN+O1l3lrObTur7dpyaWyXC660O6LImT3hVqNcEZhy7qODRf4PAjNzo1gnA4=
-SHA256 (Pkgfile) = 8d1643d2388777fe3348f6da20d216bcf11d6b8f1c06961986ce01b1f7e1c0a6
+RWSE3ohX2g5d/Wa3HO8CVxoN1GMznUp6IqBRHLK67T3D5rvxKx/kFnBz6FQNGmxphq73A6XKZvhRsLyd99hhy7An/mE18Zb5pgg=
+SHA256 (Pkgfile) = fa529e2b89d628cc6bcbb163bb25b2a1ae5af7979b21819b84431b5217616f16
 SHA256 (.footprint) = d7810f391321cfb450deb1c8d81418d5ee43c3b0c490e5e912fcdf97a3f2f501
 SHA256 (lua-5.1.5.tar.gz) = 2640fc56a795f29d28ef15e13c34a47e223960b0240e8cb0a82d9b0738695333
 SHA256 (lua.diff) = fc46c437d1ba7bb6e114b7aa3f49f035224e7b41d7a3d5e6b9e49682c9f2cc85

lua51/Pkgfile

@@ -1,11 +1,11 @@
-# Description: A programming language designed for extending applications.
-# URL: http://www.lua.org/
-# Maintainer: Danny Rawlins, crux at romster dot me
+# Description: A programming language designed for extending applications
+# URL: https://www.lua.org/
+# Maintainer: Tim Biermann, tbier at posteo dot de
 # Depends on: readline
 
 name=lua51
 version=5.1.5
-release=1
+release=2
 source=(http://www.lua.org/ftp/lua-$version.tar.gz
   lua.diff lua-5.1-cflags.diff)
 
@@ -26,6 +26,8 @@ build() {
     -e '/^LUAC_T=/ s/luac/luac5.1/' \
     -i src/Makefile
 
+  sed -i '/#define LUA_ROOT/s:/usr/local/:/usr/:' src/luaconf.h
+
   make MYCFLAGS="$CFLAGS" MYLDFLAGS="$LDFLAGS" linux
 
   install -d $PKG/usr/include/lua5.1 $PKG/usr/share/man/man1 $PKG/usr/lib