Fix c-cpp CI for Windows (#69)

Author: y-guyon

.github/workflows/c-cpp.yml

@@ -11,7 +11,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: configure
-      run: mkdir build && cd build && cmake -DCMAKE_BUILD_TYPE=Release ..
+      run: cmake -S . -B build -DCMAKE_BUILD_TYPE=Release
     - name: build
       run: cmake --build build
     - name: test
@@ -22,7 +22,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: configure
-      run: mkdir build && cd build && cmake ..
+      run: cmake -S . -B build -DCMAKE_BUILD_TYPE=Release
     - name: build
       run: cmake --build build
     - name: test
@@ -33,7 +33,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: configure
-      run: mkdir build && cd build && cmake ..
+      run: cmake -S . -B build -DCMAKE_BUILD_TYPE=Debug
     - name: build
       run: cmake --build build --config Debug
     - name: test

IsoLib/t35_tool/sources/SMPTE_ST2094_50.cpp

@@ -3,9 +3,14 @@
 #include "SMPTE_ST2094_50.hpp"
 #include <cstdarg>
 #include <cstdio>
+#include <cmath>
 #include <bitset>
 #include <numeric>
 
+#ifndef M_PI
+#define M_PI 3.1415926535897932384626433832
+#endif
+
 /* *********************************** LOCAL LOGGING FUNCTIONS
  * *******************************************************************************************/