Initial 'configure' based compilation (buildconf generates configure script).

apache2/build/find_lua.m4

@@ -0,0 +1,58 @@
+dnl Check for LUA Libraries
+dnl CHECK_LUA(ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
+dnl Sets:
+dnl  LUA_CFLAGS
+dnl  LUA_LIBS
+
+LUA_CONFIG="pkg-config"
+LUA_PKGNAME="lua5.1"
+LUA_CFLAGS=""
+LUA_LIBS=""
+
+AC_DEFUN([CHECK_LUA],
+[dnl
+
+AC_ARG_WITH(
+    lua,
+    [AC_HELP_STRING([--with-lua=PATH],[Path to the lua prefix])],
+    lua_path="$withval",
+    :)
+
+dnl # Determine lua lib directory
+if test -z "${lua_path}"; then
+    test_paths="/usr/local /usr"
+else
+    test_paths="${lua_path}"
+fi
+
+AC_MSG_CHECKING([for ${LUA_CONFIG} for Lua])
+for x in ${test_paths}; do
+    if test -e "${x}/bin/${LUA_CONFIG}"; then
+        with_lua="${x}"
+        break
+    else
+        with_lua=""
+    fi
+done
+if test -n "${with_lua}"; then
+    LUA_CONFIG="${with_lua}/bin/${LUA_CONFIG}"
+    AC_MSG_RESULT([${LUA_CONFIG} ${LUA_PKGNAME}])
+    LUA_CFLAGS="`${LUA_CONFIG} ${LUA_PKGNAME} --cflags`"
+    LUA_LIBS="`${LUA_CONFIG} ${LUA_PKGNAME} --libs`"
+    CFLAGS=$save_CFLAGS
+    LDFLAGS=$save_LDFLAGS
+else
+    AC_MSG_RESULT([no])
+fi
+
+AC_SUBST(LUA_LIBS)
+AC_SUBST(LUA_CFLAGS)
+
+if test -z "${LUA_LIBS}"; then
+  AC_MSG_NOTICE([*** lua library not found.])
+  ifelse([$2], , AC_MSG_ERROR([lua library is required]), $2)
+else
+  AC_MSG_NOTICE([using '${LUA_LIBS}' for lua Library])
+  ifelse([$1], , , $1) 
+fi 
+])