Here are some small but annoying problems a friend had in
installing Root. In summary, two programs did not compile
in the test directory because we had installed both the
binary and the source but had not recompiled the src.
Reinstalling just the binary fixed the test programs.
Compiling the source required changing the Makefile.linux
and then commenting out some code in test/guitest.cxx.
This is on a stock Redhat system and I know that this
would annoy alot of people seeing Root for the first time.
Can you please confirm that this is a common problem and
fix the Makefile.linux in the source distribution.
Below are all the details which can be ignored by most people but
I include them so that if anyone is searching the digest
they will hit on some relevant keywords.
Randy MacLeod
*****************************************************************************
This work was on a stock Redhat Linux 5.2 system, using the Root
binaries for egcs 1.0.2. I think that this must be the most
common platform for Root so I would hope that compiling
the source would be perfectly clean.
CRYPTLIBS is not defined by default. Is this a US export restriction? ;-)
CRYPTLIBS = -lcrypt
Is -lg++ needed at all? In compiling, every error was
related to not finding -lg++ yet it is in /usr/lib
I tried two things:
1)
To get this to compile I removed -lg++ from all lines
in Makefile.linux.
I was able to compile everything in src but
in the test dir, guitest complained...:
so
cp ../src/TGTab.h ../include/TGTab.h
It seems that this does not happen when you do a make in
src dir.
but still no joy, so I just commented out some things:
kHorizontalFrame);
// RWM kHorizontalFrame, GetWhitePixel());
//RWM: TGTabElement *tabel = fTab->GetTabTab(2);
//RWM: tabel->ChangeBackground(yellow);
//RWM: fTestButton->ChangeBackground(green);
guitest works and seems to behave the same as on my Solaris 2.6 box.
2)
As the superuser, I did /sbin/ldconfig, thinking that this might
fix things but no such luck.
-----------------------------------------------------------------------------
On a stock Redhat Linux 5.2 system, using the Root
binaries for egcs 1.0.2 from:
http://root.cern.ch/root/Version221.html
Note
$ g++ --version
egcs-2.90.29 980515 (egcs-1.0.3 release)
$ rpm -q -f /usr/bin/g++
egcs-c++-1.0.3a-14
-----------------------------------------------------------------------------
Here are the symptoms of having installed the binary
and then source and trying to compile in test:
We can't compile everything in the test directory.
Specifically,
g++ -O -Wall -fno-rtti -fno-exceptions -fPIC -I/home/rwm/src/physics/root/include -c minexam.cxx
minexam.cxx: In function `int minexam()':
minexam.cxx:57: no matching function for call to `TMinuit::DefineParameter (int, char[6], int, double, int, int)'
...
I look in the 2.21/08 src dir and see that things have changed,
TMinuit::DefineParameter is in the .cxx file.
I did:
cd $ROOTSYS/src
make $ROOTSYS/lib/libMinuit.so
***1: see note below
cp TMinuit.h ../include
cd ../src
make // And still an error
g++ -g minexam.o -L/home/rwm/src/physics/root/lib -lNew -lBase -lCint -lClib -lCont -lFunc -lGraf -lGraf3d -lHist -lHtml -lMatrix -lMeta -lMinuit -lNet -lPostscript -lProof -lTree -lUnix -lZip -lm -ldl -rdynamic -o minexam
/home/rwm/src/physics/root/lib/libMinuit.so:
undefined reference to `TNamed type_info function'
/home/rwm/src/physics/root/lib/libMinuit.so:
undefined reference to `TNamed type_info node'
collect2: ld returned 1 exit status
So I decide to compile all 'src' as described above.