added --enable-threads flag to enable experimental multi thread support

diff --git a/configure.ac b/configure.ac
index 745ed802335334ebe35f791ea341bd957d07450f..b118cae671fd144c8e7ed399d738769bee2b9d58 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -45,13 +45,23 @@ if test x"$do_have_ssl" = xyes; then
   AC_DEFINE([HAVE_SSL], 1, [Define if you are using SSL])
 fi
 
+do_have_threads="no";
 AC_CHECK_LIB(pthread, pthread_create, [
   AC_CHECK_HEADERS(pthread.h, [
-    LIBS="$LIBS -lpthread"
-    AC_DEFINE([HAVE_THREADS], 1, [Define if you have Threads])
+    do_have_threads="yes"
   ])
 ])
 
+AC_ARG_ENABLE([threads],
+  [AS_HELP_STRING([--enable-threads], [use threads if possible])],
+  [
+  if test x"$do_have_threads" = xyes; then
+    LIBS="$LIBS -lpthread"
+    AC_DEFINE([HAVE_THREADS], 1, [Define if you have Threads])
+  fi
+  ],
+  [])
+
 AC_ARG_ENABLE([debug],
   [AS_HELP_STRING([--enable-debug], [debug mode (compile using -O0 -Wall -Wshadow -Werror)])],
   [CFLAGS='-g -O0 -Wall -Wshadow -Werror'],