Hi ROOT-ers - I wander if anybody has a few minutes to look at the problem
I am encountering when trying to use the shared library in ROOT.
In short, I have a long(-ish) F77 code that defines a complicated matrix element:
MATRIX_PI_ENUEE.f (attachent 1)
Because I am trying to save time and not retype the program in C++, I make a shared library:
g77 -c -fPIC MATRIX_PI_ENUEE.f
g++ -Wl,-soname,libMATRIX_PI_ENUEE.so -shared -o libMATRIX_PI_ENUEE.so MATRIX_PI_ENUEE.o
That gets me the file libMATRIX_PI_ENUEE.so
Then I want to use the function matrix_pi_enuee() in my ROOT program
gen_pienuee.C (attachemnet 2). I get error:
root [1] gSystem.Load(“libMATRIX_PI_ENUEE.so”)
(int)0
root [2] .x gen_pienuee.C+
Info in TUnixSystem::ACLiC: creating shared library /net/research/pocanic/ef2p/anal2339_09s/./gen_pienuee_C.so
/net/research/pocanic/ef2p/anal2339_09s/./gen_pienuee.C: In function ‘void gen_pienuee()’:
/net/research/pocanic/ef2p/anal2339_09s/gen_pienuee_C_ACLiC_dict.o: In function G__gen_pienuee_C_ACLiC_dict__0_1297(G__value*, char const*, G__param*, int)': gen_pienuee_C_ACLiC_dict.cxx:(.text+0x790): undefined reference tomatrix_pi_enuee_’
/net/research/pocanic/ef2p/anal2339_09s/gen_pienuee_C_ACLiC_dict.o: In function gen_pienuee()': gen_pienuee_C_ACLiC_dict.cxx:(.text+0x255f): undefined reference tomatrix_pi_enuee_’
collect2: ld returned 1 exit status
Error in : Compilation failed!
Error: Function gen_pienuee() is not defined in current scope :0:
*** Interpreter error recovered ***
Cheers, Emil
P.S. I tried various modifications without success…
gen_pienuee.C (4.64 KB)
MATRIX_PI_ENUEE.f (18 KB)