since 1.60.0, boost uses placeholders namesapce for _1,_2..., on prec…

…ise(12.03) / boost 1.48, we need to defined _1 under boost::placeholders namespace
ros-perception · Feb 8, 2022 · e725fae · e725fae
1 parent 8c3b0b0
commit e725fae
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diff --git a/include/opencv_apps/nodelet.h b/include/opencv_apps/nodelet.h
@@ -39,6 +39,26 @@
 #include <nodelet/nodelet.h>
 #include <boost/thread.hpp>
 #include <image_transport/image_transport.h>
+#if BOOST_VERSION < 106000  // since 1.60.0, boost uses placeholders namesapce for _1,_2...
+#ifndef BOOST_PLAEHOLDERS
+#define BOOST_PLAEHOLDERS
+namespace boost
+{
+namespace placeholders
+{
+extern boost::arg<1> _1;
+extern boost::arg<2> _2;
+extern boost::arg<3> _3;
+extern boost::arg<4> _4;
+extern boost::arg<5> _5;
+extern boost::arg<6> _6;
+extern boost::arg<7> _7;
+extern boost::arg<8> _8;
+extern boost::arg<9> _9;
+}  // namespace placeholders
+}  // namespace boost
+#endif  // BOOST_PLAEHOLDERS
+#endif  // BOOST_VERSION < 106000
 
 // https://stackoverflow.com/questions/10496824/how-to-define-nullptr-for-supporting-both-c03-and-c11
 #if !defined(nullptr)

diff --git a/src/nodelet/nodelet.cpp b/src/nodelet/nodelet.cpp
@@ -34,6 +34,26 @@
  *********************************************************************/
 
 #include "opencv_apps/nodelet.h"
+#if BOOST_VERSION < 106000  // since 1.60.0, boost uses placeholders namesapce for _1,_2...
+#ifndef BOOST_PLAEHOLDERS
+#define BOOST_PLAEHOLDERS
+namespace boost
+{
+namespace placeholders
+{
+boost::arg<1> _1;
+boost::arg<2> _2;
+boost::arg<3> _3;
+boost::arg<4> _4;
+boost::arg<5> _5;
+boost::arg<6> _6;
+boost::arg<7> _7;
+boost::arg<8> _8;
+boost::arg<9> _9;
+}  // namespace placeholders
+}  // namespace boost
+#endif  // BOOST_PLAEHOLDERS
+#endif  // BOOST_VERSION < 106000
 
 namespace opencv_apps
 {