==== Memo ====
  * Fit の結果を canvas にすぐに反映させたい時は、<code>
  gPad->Update();
  gPad->Modified();
</code> とする。どちらかだけでも、順番が逆でも駄目。
  * Making libEve.so
  * <code>
dlopen error: libEve.so: cannot open shared object file: No such file or directory
Load Error: Failed to load Dynamic link library /home/kobayash/exp_be7_2018/ana/roothb_bro/./histobrowser_C.so
</code>
  * sudo apt-get install mesa-common-dev<code>
$ ./configure --prefix=/home/kobayash/local/root_v5.34.36 --etcdir=/home/kobayash/local/root_v5.34.36/etc --enable-rpath --enable-soversion --enable-explicitlink
Checking for GL/gl.h, or gl.h ... no
-->
Checking for GL/gl.h, or gl.h ... /usr/include
</code>
  * sudo apt-get install libgl1-mesa-dev<code>
$ ./configure --prefix=/home/kobayash/local/root_v5.34.36 --etcdir=/home/kobayash/local/root_v5.34.36/etc --enable-rpath --enable-soversion --enable-explicitlink
Checking for libGL, or libMesaGL ... no
-->
Checking for libGL, or libMesaGL ... /usr/lib/x86_64-linux-gnu
</code>
  * sudo apt-get install libglu1-mesa-dev<code>
$ ./configure --prefix=/home/kobayash/local/root_v5.34.36 --etcdir=/home/kobayash/local/root_v5.34.36/etc --enable-rpath --enable-soversion --enable-explicitlink
Checking for libGLU, or libMesaGLU ... no
-->
Checking for libGLU, or libMesaGLU ... /usr/lib/x86_64-linux-gnu
</code>
  * <code>
kobayash@ubuntu:~/local/root_v5.34.36/root$ locate libEve
/home/kobayash/local/root_v5.34.36/lib/root/libEve.rootmap
/home/kobayash/local/root_v5.34.36/lib/root/libEve.so
/home/kobayash/local/root_v5.34.36/lib/root/libEve.so.5
/home/kobayash/local/root_v5.34.36/lib/root/libEve.so.5.34
/home/kobayash/local/root_v5.34.36/root/lib/libEve.rootmap
/home/kobayash/local/root_v5.34.36/root/lib/libEve.so
/home/kobayash/local/root_v5.34.36/root/lib/libEve.so.5
/home/kobayash/local/root_v5.34.36/root/lib/libEve.so.5.34
</code>