--- configure.in.orig	2024-03-10 15:09:20 UTC
+++ configure.in
@@ -13,14 +13,14 @@ AC_PROG_LIBTOOL
 AC_PROG_INSTALL
 AC_PROG_LIBTOOL
 
-AC_CHECK_PROG(GENSNMPTREE, gensnmptree, "gensnmptree") 
-if test -z "$GENSNMPTREE"; then 
-    echo "ERROR: gensnmptree program not found." 
-    exit 1 
+AC_CHECK_PROG(GENSNMPTREE, gensnmptree, "gensnmptree")
+if test -z "$GENSNMPTREE"; then
+    echo "ERROR: gensnmptree program not found."
+    exit 1
 fi
 
 # Debug mode
-AC_ARG_ENABLE(debug, 
+AC_ARG_ENABLE(debug,
         AC_HELP_STRING([--enable-debug],
         [Compile binaries in debug mode]))
 
@@ -36,20 +36,21 @@ AC_ARG_ENABLE(pcre,
 AC_ARG_ENABLE(pcre,
         AC_HELP_STRING([--with-pcre],
         [Use PCRE instead of the default regular expression library]))
-        
+
 if test "$enable_pcre" = "yes"; then
-    AC_CHECK_LIB(pcre, pcre_compile, , 
+    AC_CHECK_LIB(pcre, pcre_compile, ,
         [echo "Couldn't find the pcre library"; exit 1])
-    AC_CHECK_HEADERS("pcre.h", , 
+    AC_CHECK_HEADERS("pcre.h", ,
         [echo "Couldn't find pcre headers"; exit 1])
     AC_DEFINE_UNQUOTED(WITH_PCRE, 1, [Use PCRE regular expression library])
 fi
 
-AC_CHECK_HEADERS([sys/queue.h sys/limits.h sys/stat.h sys/time.h sys/un.h], , 
-        [echo "ERROR: required header not found."; exit 1]) 
-AC_CHECK_HEADERS([bsnmp/snmpmod.h], , 
-        [echo "ERROR: required bsnmp header not found." exit 1]) 
-    
+AC_CHECK_HEADERS([sys/queue.h sys/limits.h sys/stat.h sys/time.h sys/un.h], ,
+        [echo "ERROR: required header not found."; exit 1])
+AC_CHECK_HEADERS([bsnmp/snmpmod.h], ,
+        [echo "ERROR: required bsnmp header not found." exit 1],
+        [#include <sys/queue.h>])
+
 # Checks for typedefs, structures, and compiler characteristics.
 AC_C_CONST
 AC_TYPE_SIZE_T