Add a show compile to all exec (but we need to update the cmake)

Src/ScalFmmConfig.h.cmake

@@ -102,4 +102,11 @@
 #include <string>
 const std::string SCALFMMDataPath("@CMAKE_SOURCE_DIR@/Data/");
 
+
+///////////////////////////////////////////////////////
+// Flags and libs used to compile
+///////////////////////////////////////////////////////
+const std::string SCALFMMCompileFlags("@CMAKE_COMPILE_FLAGS@");
+const std::string SCALFMMCompileLibs("@CMAKE_COMPILE_LIBS@");
+
 #endif // CONFIG_H

Src/Utils/FParameterNames.hpp

@@ -45,6 +45,11 @@ static const FParameterNames Help = {
      "To have print the options used by the application."
 };
 
+static const FParameterNames Compile = {
+    {"-show-compile", "--show-compile", "--flags"} ,
+     "To have the list of flags and lib linked to scalfmm."
+};
+
 static const FParameterNames NbParticles = {
     {"-nb", "--number-of-particles", "-N"} ,
      "The number of particles if they are generated by the executable."
@@ -178,12 +183,23 @@ inline void PrintUsedOptions(const std::vector<FParameterNames>& options){
     }
 }
 
+inline void PrintFlags(){
+    std::cout << "This executable has been compiled with:\n";
+    std::cout << "Flags = " << SCALFMMCompileFlags << "\n";
+    std::cout << "Libs  = " << SCALFMMCompileLibs << "\n";
+    std::cout.flush();
+}
+
 }// End of namespace
 
 /** This should be include at the beginin of all main file
  *  @code FHelpAndExit(argc, argv, FParameterDefinitions::NbParticles, FParameterNames OctreeSubHeight );
  */
 #define FHelpAndExit(argc, argv, ...) \
+    if(FParameters::existParameter(argc, argv, FParameterDefinitions::Compile.options)) {\
+        FParameterDefinitions::PrintFlags();\
+        return 0;\
+    } \
     if(FParameters::existParameter(argc, argv, FParameterDefinitions::Help.options)) {\
         const std::vector<FParameterNames> optionsvec = {__VA_ARGS__};\
         FParameterDefinitions::PrintUsedOptions(optionsvec);\
@@ -196,6 +212,10 @@ inline void PrintUsedOptions(const std::vector<FParameterNames>& options){
  *  @code       FParameterDefinitions::NbParticles, FParameterNames OctreeSubHeight );
  */
 #define FHelpDescribeAndExit(argc, argv, description, ...) \
+    if(FParameters::existParameter(argc, argv, FParameterDefinitions::Compile.options)) {\
+        FParameterDefinitions::PrintFlags();\
+        return 0;\
+    } \
     if(FParameters::existParameter(argc, argv, FParameterDefinitions::Help.options)) {\
         std::cout << argv[0] << " : " << description << "\n"; \
         const std::vector<FParameterNames> optionsvec = {__VA_ARGS__};\