albertobsd
collect2 error.
dear alberto,
can you please resolve this issue. it is during make.
on ubuntu linux
"gcc -O3 -c sha256/sha256.c -o sha256.o
gcc -O3 -c base58/base58.c -o base58.o
gcc -O3 -c rmd160/rmd160.c -o rmd160.o
gcc -O3 -c gmpecc.c -o gmpecc.o
gcc -O3 -c util.c -o util.o
gcc -o keysubtracter keysubtracter.c gmpecc.o util.o sha256.o base58.o rmd160.o -lgmp
/usr/bin/ld: gmpecc.o:(.bss+0x2020): multiple definition of EC'; /tmp/ccw0Inn5.o:(.bss+0x0): first defined here /usr/bin/ld: gmpecc.o:(.bss+0x0): multiple definition of DoublingG'; /tmp/ccw0Inn5.o:(.bss+0x40): first defined here
/usr/bin/ld: gmpecc.o:(.bss+0x2000): multiple definition of `G'; /tmp/ccw0Inn5.o:(.bss+0x20): first defined here
collect2: error: ld returned 1 exit status
make: *** [Makefile:7: default] Error 1"
just add this lines to gmpecc.c after all includes on line 4:
struct Elliptic_Curve EC; struct Point G; struct Point DoublingG[256];
and in gmpecc.h add "extern" to lines 22-24: extern struct Elliptic_Curve EC; extern struct Point G; extern struct Point DoublingG[256];
thats all. my gcc 11+ compiled succesfully
