fix custom require (with dlopen(RTLD_GLOBAL))

3 files changed, 4 insertions, 1 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index ce5c278..e4d2a8d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,6 +6,7 @@ LINK_DIRECTORIES("${LUA_LIBDIR}")
 
 INCLUDE(CheckIncludeFiles)
 INCLUDE(CheckFunctionExists)
+INCLUDE(CheckLibraryExists)
 
 IF (UNIX OR NOT WIN32)
   CHECK_INCLUDE_FILES(fcntl.h HAVE_FCNTL_H)
@@ -18,6 +19,7 @@ IF (UNIX OR NOT WIN32)
   CHECK_INCLUDE_FILES(sys/dir.h HAVE_SYS_DIR_H)
   CHECK_INCLUDE_FILES(ndir.h HAVE_NDIR_H)
   CHECK_FUNCTION_EXISTS(getcwd HAVE_GETCWD)
+  CHECK_LIBRARY_EXISTS(dl dlopen "" HAVE_DLOPEN)
 ENDIF (UNIX OR NOT WIN32)
 
 CONFIGURE_FILE("paths.h.in" "${CMAKE_CURRENT_BINARY_DIR}/paths.h")
diff --git a/paths.c b/paths.c
index 011ad2c..6111cfa 100644
--- a/paths.c
+++ b/paths.c
@@ -953,7 +953,7 @@ lua_getregistryvalue(lua_State *L)
 /* ------------------------------------------------------ */
 /* require (with global flag) */
 
-#ifdef LUA_USE_DLOPEN
+#ifdef HAVE_DLOPEN
 # define NEED_PATH_REQUIRE 1
 # include <dlfcn.h>
 # ifndef RTLD_LAZY
diff --git a/paths.h.in b/paths.h.in
index 31f9014..143f034 100644
--- a/paths.h.in
+++ b/paths.h.in
@@ -43,6 +43,7 @@
 #cmakedefine HAVE_SYS_UTSNAME_H 1
 #cmakedefine HAVE_NDIR_H 1
 #cmakedefine HAVE_GETCWD 1
+#cmakedefine HAVE_DLOPEN 1
 
 # include <errno.h>
 # include <sys/types.h>