File no-boost-math.patch of Package failed_libclaw

diff -Nur libclaw-1.7.4/claw/code/tween/easing/easing_elastic.cpp new/claw/code/tween/easing/easing_elastic.cpp
--- libclaw-1.7.4/claw/code/tween/easing/easing_elastic.cpp	2013-07-03 21:34:38.000000000 +0200
+++ new/claw/code/tween/easing/easing_elastic.cpp	2021-05-16 14:17:33.716091909 +0200
@@ -28,7 +28,6 @@
  */
 #include <claw/tween/easing/easing_elastic.hpp>
 
-#include <boost/math/constants/constants.hpp>
 #include <cmath>
 
 /**
@@ -38,7 +37,7 @@
  */
 double claw::tween::easing_elastic_func( double t )
 {
-  const double pi( boost::math::constants::pi<double>() );
+  const double pi( 3.14159265358979323846264338327950288419716939937510582097494459230781640628620899L );
   const double v(t-1);
   const double p(0.3);
 
diff -Nur libclaw-1.7.4/claw/code/tween/easing/easing_sine.cpp new/claw/code/tween/easing/easing_sine.cpp
--- libclaw-1.7.4/claw/code/tween/easing/easing_sine.cpp	2013-07-03 21:34:38.000000000 +0200
+++ new/claw/code/tween/easing/easing_sine.cpp	2021-05-16 14:29:37.561118048 +0200
@@ -28,7 +28,6 @@
  */
 #include <claw/tween/easing/easing_sine.hpp>
 
-#include <boost/math/constants/constants.hpp>
 #include <cmath>
 
 /**
@@ -38,6 +37,6 @@
  */
 double claw::tween::easing_sine_func( double t )
 {
-  const double pi( boost::math::constants::pi<double>() );
+  const double pi( 3.14159265358979323846264338327950288419716939937510582097494459230781640628620899L );
   return 1 - std::cos(t * pi / 2);
 } // easing_sine_func()
diff -Nur libclaw-1.7.4/claw/impl/curve.tpp new/claw/impl/curve.tpp
--- libclaw-1.7.4/claw/impl/curve.tpp	2013-07-03 21:34:38.000000000 +0200
+++ new/claw/impl/curve.tpp	2021-05-16 14:03:12.910091138 +0200
@@ -26,8 +26,9 @@
  * \brief Implementation of claw::math::curve.
  * \author Julien Jorge
  */
-#include <boost/math/special_functions/cbrt.hpp>
-#include <boost/math/constants/constants.hpp>
+
+#include <cmath>
+#include <limits>
 
 /*----------------------------------------------------------------------------*/
 /**
@@ -516,10 +516,12 @@
   else if ( delta > 0 )
     {
     result.push_back
-      ( boost::math::cbrt
-        ( (-q + std::sqrt(delta)) / 2.0 )
-        + boost::math::cbrt
-        ( (-q - std::sqrt(delta)) / 2.0 ) - b / (3.0 * a));
+      ( std::pow(
+        ( (-q + std::sqrt(delta)) / 2.0 ),
+        1.L/3.L)
+        + std::pow(
+        ( (-q - std::sqrt(delta)) / 2.0 ) - b / (3.0 * a),
+        1.L/3.L));
     }
   else
     for ( std::size_t i=0; i!=3; ++i )
@@ -527,7 +529,7 @@
         ( 2.0 * std::sqrt( -p / 3.0 )
           * std::cos
           ( std::acos( std::sqrt(27.0 / (- p * p * p)) * - q / 2.0 ) / 3.0
-            + 2.0 * i * boost::math::constants::pi<double>() / 3.0 ) 
+            + 2.0 * i * 3.14159265358979323846264338327950288419716939937510582097494459230781640628620899L / 3.0 ) 
           - b / (3.0 * a));
 
   return result;
diff -Nur libclaw-1.7.4/CMakeLists.txt new/CMakeLists.txt
--- libclaw-1.7.4/CMakeLists.txt	2013-07-03 21:34:38.000000000 +0200
+++ new/CMakeLists.txt	2021-05-16 14:17:55.612220993 +0200
@@ -77,6 +77,8 @@
 # set compilation defines
 add_definitions( ${CLAW_DEFINITIONS} )
 
+set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++03")
+
 #-------------------------------------------------------------------------------
 # application
 set( CLAW_APPLICATION_SOURCES