Added Lua interfae. (Luis Carvalho)
diff --git a/src/configure.in b/src/configure.in
index 0e0e646..5896189 100644
--- a/src/configure.in
+++ b/src/configure.in
@@ -410,6 +410,81 @@
AC_MSG_RESULT(yes)
fi
+dnl Check for Lua feature.
+AC_MSG_CHECKING(--enable-luainterp argument)
+AC_ARG_ENABLE(luainterp,
+ [ --enable-luainterp Include Lua interpreter.], ,
+ [enable_luainterp="no"])
+AC_MSG_RESULT($enable_luainterp)
+
+if test "$enable_luainterp" = "yes"; then
+ dnl -- find the lua executable
+ AC_SUBST(vi_cv_path_lua)
+
+ AC_MSG_CHECKING(--with-lua-prefix argument)
+ AC_ARG_WITH(lua_prefix,
+ [ --with-lua-prefix=PFX Prefix where Lua is installed.],
+ with_lua_prefix="$withval"; AC_MSG_RESULT($with_lua_prefix),
+ with_lua_prefix="";AC_MSG_RESULT("no"))
+
+ if test "X$with_lua_prefix" != "X"; then
+ vi_cv_path_lua_pfx="$with_lua_prefix"
+ else
+ AC_MSG_CHECKING(LUA_PREFIX environment var)
+ if test "X$LUA_PREFIX" != "X"; then
+ AC_MSG_RESULT("$LUA_PREFIX")
+ vi_cv_path_lua_pfx="$LUA_PREFIX"
+ else
+ AC_MSG_RESULT("not set")
+ fi
+ fi
+
+ LUA_INC=
+ if test "X$vi_cv_path_lua_pfx" != "X"; then
+ AC_MSG_CHECKING(if lua.h can be found in $vi_cv_path_lua_pfx/include)
+ if test -f $vi_cv_path_lua_pfx/include/lua.h; then
+ AC_MSG_RESULT("yes")
+ else
+ AC_MSG_RESULT("no")
+ dnl -- try to find Lua executable
+ AC_PATH_PROG(vi_cv_path_lua, lua)
+ if test "X$vi_cv_path_lua" != "X"; then
+ dnl -- find Lua version
+ AC_CACHE_CHECK(Lua version, vi_cv_version_lua,
+ [ vi_cv_version_lua=`${vi_cv_path_lua} -e "print(_VERSION:sub(5,7))"` ])
+ AC_MSG_CHECKING(if lua.h can be found in $vi_cv_path_lua_pfx/include/lua$vi_cv_version_lua)
+ if test -f $vi_cv_path_lua_pfx/include/lua$vi_cv_version_lua/lua.h; then
+ AC_MSG_RESULT("yes")
+ LUA_INC=/lua$vi_cv_version_lua
+ else
+ AC_MSG_RESULT("no")
+ vi_cv_path_lua_pfx=
+ fi
+ fi
+ fi
+ fi
+
+ if test "X$vi_cv_path_lua_pfx" != "X"; then
+ if test "X$vi_cv_version_lua" != "X"; then
+ dnl Test alternate location using version
+ LUA_LIBS="-L${vi_cv_path_lua_pfx}/lib -llua$vi_cv_version_lua"
+ else
+ LUA_LIBS="-L${vi_cv_path_lua_pfx}/lib -llua"
+ fi
+ LUA_CFLAGS="-I${vi_cv_path_lua_pfx}/include${LUA_INC}"
+ LUA_SRC="if_lua.c"
+ LUA_OBJ="objects/if_lua.o"
+ LUA_PRO="if_lua.pro"
+ AC_DEFINE(FEAT_LUA)
+ fi
+ AC_SUBST(LUA_SRC)
+ AC_SUBST(LUA_OBJ)
+ AC_SUBST(LUA_PRO)
+ AC_SUBST(LUA_LIBS)
+ AC_SUBST(LUA_CFLAGS)
+fi
+
+
dnl Check for MzScheme feature.
AC_MSG_CHECKING(--enable-mzschemeinterp argument)
AC_ARG_ENABLE(mzschemeinterp,