[FreeBSD] Fix davix build and CPU reporting

* [FreeBSD] fix Cpu freq reporting

* [FreeBSD] fix cpu type reporting

* [FreeBSD] fix davix build

- 'sed -i' needs an argument on posix sed (gnu sed does not)

* Don't use gcc explicitly, use cc

builtins/davix/CMakeLists.txt

@@ -48,6 +48,7 @@ ExternalProject_Add(DAVIX
     -DCMAKE_OSX_SYSROOT=${CMAKE_OSX_SYSROOT}
     -DCMAKE_OSX_DEPLOYMENT_TARGET=${CMAKE_OSX_DEPLOYMENT_TARGET}
     -DLIB_SUFFIX=
+  PATCH_COMMAND sed -i "" -e "s|sed -i '| sed -i \"\" '|g" -e "s/gcc/cc/g" patch-curl-clock-gettime.sh
   LOG_BUILD 1 LOG_CONFIGURE 1 LOG_DOWNLOAD 1 LOG_INSTALL 1
   BUILD_BYPRODUCTS ${DAVIX_LIBRARIES}
   TIMEOUT 600)

core/unix/src/TUnixSystem.cxx

@@ -4817,26 +4817,26 @@ static void GetFreeBSDSysInfo(SysInfo_t *sysinfo)
    // it probably would be better to get this information from syscalls
    // this is possibly less error prone
    FILE *p = gSystem->OpenPipe("sysctl -n kern.ostype hw.model hw.ncpu "
-                               "hw.physmem dev.cpu.0.freq", "r");
+                               "hw.realmem dev.cpu.0.freq", "r");
    TString s;
    s.Gets(p);
    sysinfo->fOS = s;
    s.Gets(p);
-   sysinfo->fModel = s;
+   sysinfo->fCpuType = s;
    s.Gets(p);
    sysinfo->fCpus = s.Atoi();
    s.Gets(p);
    Long64_t t = s.Atoll();
    sysinfo->fPhysRam = Int_t(t / 1024 / 1024);
    s.Gets(p);
    t = s.Atoll();
-   sysinfo->fCpuSpeed = Int_t(t / 1000000);
+   sysinfo->fCpuSpeed = Int_t(t);
    gSystem->ClosePipe(p);
 }
 
 static void GetFreeBSDCpuInfo(CpuInfo_t*, Int_t)
 {
-  //not yet implemented
+   Error("ListSymbols", "not yet implemented");
 }
 #endif