ROOT Version:6 and 5 I have root with version 5 and 6. root5 for some old file and how to I set rootrc5 and rootrc6 when I use different version of root or set rootlogon5.cpp when using root5. is there an Macro definition in c code like below? #ifdef ROOT5_USED void rootlogon(){} #else vo…

Wile_E_Coyote September 24, 2019, 9:19am 2

Hiding ROOT::Cintex::Cintex::Enable(); from ROOT6 compilation in a backwards compatible way Newbie

Try to “#include” anything from ROOT and then (if ROOT 5 will misbehave, replace ROOT_VERSION(6,00,00) with 393216): #if ROOT_VERSION_CODE >= ROOT_VERSION(6,00,00) // ... ROOT 6.00/00 and newer #else /* ROOT_VERSION_CODE >= ROOT_VERSION(6,00,00) */ // ... ROOT 5 (and older) #endif /* ROOT_VERSION_CODE >= ROOT_VERSION(6,00,00) */ See also:

Legendre polynomials missing, not linking to GSL (Mathmore already installed) Newbie

If you run your macros through the standard “root” (or “root.exe”) executable, try to create a “rootlogon.C” file: void rootlogon(void) { // rootlogon.C ... // std::cout << "... rootlogon.C ..." << std::endl; if (gROOT->GetVersionCode() < 393216) { // 393216 = ROOT_VERSION(6,00,00) gSystem->Load("libMathMore"); } } // ... rootlogon.C

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Rootrc load with different version