Fix inclusion of Lua headers. See #1355

We will need to do something similar for Ncat.
2025-12-06 04:31:29 +00:00 · 2018-10-16 05:18:31 +00:00
parent f836c164e0
commit a0f55317f3
19 changed files with 166 additions and 260 deletions
--- a/3
+++ b/3
@@ -1,5 +1,8 @@
 #Nmap Changelog ($Id$); -*-text-*-

+o [GH#1355] When searching for Lua header files, actually use them where they
+  are found instead of forcing /usr/include. [Fabrice Fontaine, Daniel Miller]
+
 o [NSE][GH#1331] Script traceroute-geolocation no longer crashes when
  www.GeoPlugin.net returns null coordinates [Michal Kubenka, nnposter]

--- a/Makefile.in
+++ b/Makefile.in
@@ -21,7 +21,6 @@ export NSOCKDIR=@NSOCKDIR@
 export LIBLUADIR = @LIBLUADIR@
 export LIBLINEARDIR = @LIBLINEARDIR@
 export NDIR=$(shell pwd)
-export LIBLUA_LIBS = @LIBLUA_LIBS@
 export LIBLINEAR_LIBS = @LIBLINEAR_LIBS@
 export NCATDIR=@NCATDIR@
 CC = @CC@
@@ -91,7 +90,7 @@ UNINSTALLZENMAP=@UNINSTALLZENMAP@
 UNINSTALLNDIFF=@UNINSTALLNDIFF@
 UNINSTALLNPING=@UNINSTALLNPING@

-ifneq (@LIBLUA_LIBS@,)
+ifneq (@NOLUA@,yes)
 NSE_SRC=nse_main.cc nse_utility.cc nse_nsock.cc nse_dnet.cc nse_fs.cc nse_nmaplib.cc nse_debug.cc nse_pcrelib.cc nse_lpeg.cc
 NSE_HDRS=nse_main.h nse_utility.h nse_nsock.h nse_dnet.h nse_fs.h nse_nmaplib.h nse_debug.h nse_pcrelib.h nse_lpeg.h
 NSE_OBJS=nse_main.o nse_utility.o nse_nsock.o nse_dnet.o nse_fs.o nse_nmaplib.o nse_debug.o nse_pcrelib.o nse_lpeg.o
--- a/269
+++ b/269
@@ -653,6 +653,7 @@ LUA_CLEAN
 LUA_BUILD
 LIBLUADIR
 LIBLUA_LIBS
+NOLUA
 DNET_DIST_CLEAN
 DNET_CLEAN
 DNET_BUILD
@@ -2014,48 +2015,6 @@ $as_echo "$ac_res" >&6; }
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno

 } # ac_fn_c_check_func
-
-# ac_fn_cxx_try_run LINENO
-# ------------------------
-# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
-# that executables *can* be run.
-ac_fn_cxx_try_run ()
-{
-  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  if { { ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
-  (eval "$ac_link") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
-  { { case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
-  (eval "$ac_try") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; }; then :
-  ac_retval=0
-else
-  $as_echo "$as_me: program exited with status $ac_status" >&5
-       $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-       ac_retval=$ac_status
-fi
-  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
-  as_fn_set_status $ac_retval
-
-} # ac_fn_cxx_try_run
 cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
@@ -7079,6 +7038,8 @@ if test "${with_liblua+set}" = set; then :
    LUA_DIST_CLEAN="distclean-lua"
      have_lua="yes"

+$as_echo "#define LUA_INCLUDED 1" >>confdefs.h
+
  ;;
  no)
    no_lua="yes"
@@ -7154,7 +7115,7 @@ fi
 if test "$no_lua" = "yes"; then
  trace_no_use="$trace_no_use lua"
  CPPFLAGS="-DNOLUA $CPPFLAGS"
-  LIBLUA_LIBS=""
+  NOLUA="yes"
  LUA_BUILD=""
  LUA_CLEAN=""
  LUA_DIST_CLEAN=""
@@ -7173,149 +7134,93 @@ if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
 _ACEOF
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for lua_isyieldable in -llua5.3" >&5
-$as_echo_n "checking for lua_isyieldable in -llua5.3... " >&6; }
-if ${ac_cv_lib_lua5_3_lua_isyieldable+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-llua5.3 -lm $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char lua_isyieldable ();
-int
-main ()
-{
-return lua_isyieldable ();
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_lua5_3_lua_isyieldable=yes
-else
-  ac_cv_lib_lua5_3_lua_isyieldable=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_lua5_3_lua_isyieldable" >&5
-$as_echo "$ac_cv_lib_lua5_3_lua_isyieldable" >&6; }
-if test "x$ac_cv_lib_lua5_3_lua_isyieldable" = xyes; then :
-  have_lua=yes; LIBLUA_LIBS="-llua5.3"; CPPFLAGS="-I/usr/include/lua5.3 $CPPFLAGS"; break
-fi
-
-      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for lua_isyieldable in -llua53" >&5
-$as_echo_n "checking for lua_isyieldable in -llua53... " >&6; }
-if ${ac_cv_lib_lua53_lua_isyieldable+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-llua53 -lm $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char lua_isyieldable ();
-int
-main ()
-{
-return lua_isyieldable ();
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_lua53_lua_isyieldable=yes
-else
-  ac_cv_lib_lua53_lua_isyieldable=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_lua53_lua_isyieldable" >&5
-$as_echo "$ac_cv_lib_lua53_lua_isyieldable" >&6; }
-if test "x$ac_cv_lib_lua53_lua_isyieldable" = xyes; then :
-  have_lua=yes; LIBLUA_LIBS="-llua53"; CPPFLAGS="-I/usr/include/lua53 $CPPFLAGS"; break
-fi
-
-      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for lua_isyieldable in -llua" >&5
-$as_echo_n "checking for lua_isyieldable in -llua... " >&6; }
-if ${ac_cv_lib_lua_lua_isyieldable+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-llua -lm $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char lua_isyieldable ();
-int
-main ()
-{
-return lua_isyieldable ();
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_lua_lua_isyieldable=yes
-else
-  ac_cv_lib_lua_lua_isyieldable=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_lua_lua_isyieldable" >&5
-$as_echo "$ac_cv_lib_lua_lua_isyieldable" >&6; }
-if test "x$ac_cv_lib_lua_lua_isyieldable" = xyes; then :
-  have_lua=yes; LIBLUA_LIBS="-llua"; CPPFLAGS="-I/usr/include/lua $CPPFLAGS"; break
-fi
-
-
+ break
 fi

 done

+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing lua_isyieldable" >&5
+$as_echo_n "checking for library containing lua_isyieldable... " >&6; }
+if ${ac_cv_search_lua_isyieldable+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */

-    ac_ext=cpp
-ac_cpp='$CXXCPP $CPPFLAGS'
-ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char lua_isyieldable ();
+int
+main ()
+{
+return lua_isyieldable ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' lua5.3 lua53 lua; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib -lm $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_lua_isyieldable=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_lua_isyieldable+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_lua_isyieldable+:} false; then :

-    # We need Lua 5.2 exactly
+else
+  ac_cv_search_lua_isyieldable=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_lua_isyieldable" >&5
+$as_echo "$ac_cv_search_lua_isyieldable" >&6; }
+ac_res=$ac_cv_search_lua_isyieldable
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+  have_lua=yes
+fi
+
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    # We need Lua 5.3 exactly
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for lua version == 503" >&5
 $as_echo_n "checking for lua version == 503... " >&6; }
-
-if test "$cross_compiling" = yes; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: cross-compiling -- assuming yes" >&5
-$as_echo "cross-compiling -- assuming yes" >&6; }; have_lua=yes
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
- #include <lua.h>
+
+      #ifdef HAVE_LUA5_3_LUA_H
+          #include <lua5.3/lua.h>
+      #elif defined HAVE_LUA_5_3_LUA_H
+          #include <lua/5.3/lua.h>
+      #elif defined HAVE_LUA_H || defined LUA_INCLUDED
+          #include <lua.h>
+      #elif defined HAVE_LUA_LUA_H
+          #include <lua/lua.h>
+      #endif
+
+      #if (LUA_VERSION_NUM != 503)
+          #error Incorrect Lua version
+      #endif
+
 int
 main ()
 {
@@ -7323,16 +7228,14 @@ if(LUA_VERSION_NUM != 503) return 1;
  ;
  return 0;
 }
+
 _ACEOF
-if ac_fn_cxx_try_run "$LINENO"; then :
+if ac_fn_c_try_cpp "$LINENO"; then :
  have_lua=yes
 else
  have_lua=no
 fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
+rm -f conftest.err conftest.i conftest.$ac_ext
    ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -7377,6 +7280,7 @@ fi



+
 LIBLINEARDIR=liblinear
 have_liblinear=no

@@ -7896,6 +7800,7 @@ fi
 done


+
   ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
--- a/configure.ac
+++ b/configure.ac
@@ -821,7 +821,7 @@ AC_SEARCH_LIBS(dlopen, dl)
 if test "$no_lua" = "yes"; then
  trace_no_use="$trace_no_use lua"
  CPPFLAGS="-DNOLUA $CPPFLAGS"
-  LIBLUA_LIBS=""
+  NOLUA="yes"
  LUA_BUILD=""
  LUA_CLEAN=""
  LUA_DIST_CLEAN=""
@@ -832,20 +832,30 @@ else

  # If they didn't specify it, we try to find it
  if test $have_lua != yes; then
-    AC_CHECK_HEADERS([lua5.3/lua.h lua/5.3/lua.h lua.h lua/lua.h],
-      AC_CHECK_LIB(lua5.3, lua_isyieldable, [have_lua=yes; LIBLUA_LIBS="-llua5.3"; CPPFLAGS="-I/usr/include/lua5.3 $CPPFLAGS"; break],, [-lm])
-      AC_CHECK_LIB(lua53, lua_isyieldable, [have_lua=yes; LIBLUA_LIBS="-llua53"; CPPFLAGS="-I/usr/include/lua53 $CPPFLAGS"; break],, [-lm])
-      AC_CHECK_LIB(lua, lua_isyieldable, [have_lua=yes; LIBLUA_LIBS="-llua"; CPPFLAGS="-I/usr/include/lua $CPPFLAGS"; break],, [-lm])
-    )
-
-    AC_LANG_PUSH(C++)
-    # We need Lua 5.2 exactly
+    AC_CHECK_HEADERS([lua5.3/lua.h lua/5.3/lua.h lua.h lua/lua.h], [break])
+    AC_SEARCH_LIBS(lua_isyieldable, [lua5.3 lua53 lua], [have_lua=yes],, [-lm])
+    AC_LANG_PUSH(C)
+    # We need Lua 5.3 exactly
    AC_MSG_CHECKING([for lua version == 503])
-    AC_RUN_IFELSE([ AC_LANG_PROGRAM(
-      [[#include <lua.h>]],
-      [[if(LUA_VERSION_NUM != 503) return 1;]])],
-      have_lua=yes, have_lua=no, AC_MSG_RESULT(cross-compiling -- assuming yes); have_lua=yes)
-    AC_LANG_POP(C++)
+    AC_PREPROC_IFELSE([ AC_LANG_PROGRAM( [[
+      #ifdef HAVE_LUA5_3_LUA_H
+          #include <lua5.3/lua.h>
+      #elif defined HAVE_LUA_5_3_LUA_H
+          #include <lua/5.3/lua.h>
+      #elif defined HAVE_LUA_H || defined LUA_INCLUDED
+          #include <lua.h>
+      #elif defined HAVE_LUA_LUA_H
+          #include <lua/lua.h>
+      #endif
+
+      #if (LUA_VERSION_NUM != 503)
+          #error Incorrect Lua version
+      #endif
+        ]],
+        [[if(LUA_VERSION_NUM != 503) return 1;]])
+    ],
+    [have_lua=yes], [have_lua=no])
+    AC_LANG_POP(C)

    LUA_BUILD=""
    LUA_CLEAN=""
@@ -869,6 +879,7 @@ else
  NSE_CHECK="check-nse"
 fi

+AC_SUBST(NOLUA)
 AC_SUBST(LIBLUA_LIBS)
 AC_SUBST(LIBLUADIR)
 AC_SUBST(LUA_BUILD)
--- a/lpeg.c
+++ b/lpeg.c
@@ -16,8 +16,6 @@
 #include <assert.h>
 #include <limits.h>

-#include "lua.h"
-

 #define VERSION         "0.12"

@@ -332,8 +330,6 @@ void checkrule (lua_State *L, Instruction *op, int from, int to,
 #if !defined(lpcode_h)
 #define lpcode_h

-#include "lua.h"
-

 int tocharset (TTree *tree, Charset *cs);
 int checkaux (TTree *tree, int pred);
@@ -394,8 +390,6 @@ void printcaplist (Capture *cap, Capture *limit);
 ** Copyright 2007, Lua.org & PUC-Rio  (see 'lpeg.html' for license)
 */

-#include "lua.h"
-#include "lauxlib.h"



@@ -932,8 +926,6 @@ int getcaptures (lua_State *L, const char *s, const char *r, int ptop) {
 #include <limits.h>


-#include "lua.h"
-#include "lauxlib.h"



@@ -2136,8 +2128,6 @@ void printktable (lua_State *L, int idx) {
 #include <string.h>


-#include "lua.h"
-#include "lauxlib.h"



@@ -3362,8 +3352,6 @@ LUALIB_API int luaopen_lpeg (lua_State *L) {
 #include <string.h>


-#include "lua.h"
-#include "lauxlib.h"



--- a/nmap_config.h.in
+++ b/nmap_config.h.in
@@ -257,4 +257,10 @@ extern "C" int gethostname (char *, unsigned int);
 #undef PCAP_NETMASK_UNKNOWN
 #undef HAVE_PCAP_SET_IMMEDIATE_MODE

+/* Various possibilities for lua.h */
+#undef HAVE_LUA5_3_LUA_H
+#undef HAVE_LUA_5_3_LUA_H
+#undef HAVE_LUA_H
+#undef HAVE_LUA_LUA_H
+
 #endif /* CONFIG_H */
--- a/nse_debug.cc
+++ b/nse_debug.cc
@@ -1,9 +1,5 @@

-extern "C" {
-  #include "lua.h"
-  #include "lauxlib.h"
-}
-
+#include "nse_lua.h"
 #include "nse_debug.h"
 #include "output.h"
 #undef NDEBUG
--- a/nse_dnet.cc
+++ b/nse_dnet.cc
@@ -9,11 +9,7 @@

 #include "struct_ip.h"

-extern "C" {
-#include "lua.h"
-#include "lauxlib.h"
-#include "lualib.h"
-}
+#include "nse_lua.h"

 #include <assert.h>

--- a/nse_fs.cc
+++ b/nse_fs.cc
@@ -26,10 +26,7 @@
 *
 **/

-extern "C" {
-  #include "lauxlib.h"
-  #include "lua.h"
-}
+#include "nse_lua.h"

 #include "nmap.h"
 #include "nse_fs.h"
--- a/nse_libssh2.cc
+++ b/nse_libssh2.cc
@@ -8,10 +8,9 @@
 */

 extern "C" {
-#include "lua.h"
-#include "lauxlib.h"
 #include "libssh2.h"
 }
+#include "nse_lua.h"

 #include "nse_debug.h"
 #include "nse_nsock.h"
--- a/nse_lpeg.cc
+++ b/nse_lpeg.cc
@@ -1,7 +1,4 @@
-extern "C" {
-  #include "lauxlib.h"
-  #include "lua.h"
-}
+#include "nse_lua.h"

 /* Lua 5.3 support */
 #define luaL_checkint luaL_checkinteger
--- a/nse_lua.h
+++ b/nse_lua.h
@@ -0,0 +1,32 @@
+#ifndef NSE_LUA_H
+#define NSE_LUA_H
+
+#include "nmap_config.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef HAVE_LUA5_3_LUA_H
+  #include <lua5.3/lua.h>
+  #include <lua5.3/lauxlib.h>
+  #include <lua5.3/lualib.h>
+#elif defined HAVE_LUA_5_3_LUA_H
+  #include <lua/5.3/lua.h>
+  #include <lua/5.3/lauxlib.h>
+  #include <lua/5.3/lualib.h>
+#elif defined HAVE_LUA_H || defined LUA_INCLUDED
+  #include <lua.h>
+  #include <lauxlib.h>
+  #include <lualib.h>
+#elif defined HAVE_LUA_LUA_H
+  #include <lua/lua.h>
+  #include <lua/lauxlib.h>
+  #include <lua/lualib.h>
+#endif
+
+#ifdef __cplusplus
+} /* End of 'extern "C"' */
+#endif
+
+#endif /* NSE_LUA_H */
--- a/nse_main.h
+++ b/nse_main.h
@@ -5,11 +5,7 @@
 #include <list>
 #include <string>

-extern "C" {
-  #include "lua.h"
-  #include "lauxlib.h"
-  #include "lualib.h"
-}
+#include "nse_lua.h"

 #include "scan_lists.h"

--- a/nse_nmaplib.cc
+++ b/nse_nmaplib.cc
@@ -1,9 +1,5 @@

-extern "C" {
-  #include "lua.h"
-  #include "lauxlib.h"
-  #include "lualib.h"
-}
+#include "nse_lua.h"

 #include <math.h>

--- a/nse_nsock.h
+++ b/nse_nsock.h
@@ -1,9 +1,7 @@
 #ifndef NMAP_LUA_NSOCK_H
 #define NMAP_LUA_NSOCK_H

-extern "C" {
-  #include "lua.h"
-}
+#include "nse_lua.h"

 LUALIB_API int luaopen_nsock (lua_State *);

--- a/nse_openssl.cc
+++ b/nse_openssl.cc
@@ -36,14 +36,11 @@
 #define PASS_EVP_CTX(ctx) (&(ctx))
 #endif

-extern "C" {
-  #include "lua.h"
-  #include "lauxlib.h"
+#include "nse_lua.h"
 #if OPENSSL_API_COMPAT >= 0x10100000L
  /* Needed for get_random_bytes, since RAND_pseudo_bytes is gone */
  #include <nbase.h>
 #endif
-}

 #include "nse_openssl.h"

--- a/nse_pcrelib.cc
+++ b/nse_pcrelib.cc
@@ -7,10 +7,7 @@
 #include <stdlib.h>
 #include <string.h>

-extern "C" {
-  #include "lua.h"
-  #include "lauxlib.h"
-}
+#include "nse_lua.h"

 #include <locale.h>

--- a/nse_ssl_cert.cc
+++ b/nse_ssl_cert.cc
@@ -159,11 +159,7 @@
 #endif


-extern "C"
-{
-#include "lua.h"
-#include "lauxlib.h"
-}
+#include "nse_lua.h"

 #include "nse_nsock.h"

--- a/nse_zlib.cc
+++ b/nse_zlib.cc
@@ -25,10 +25,7 @@
 #include <stdlib.h>
 #include <string.h>

-extern "C" {
-#include "lua.h"
-#include "lauxlib.h"
-}
+#include "nse_lua.h"

 #include <zlib.h>