Hi, I try to compile sage on my opteron machine.
When compiling flint, I get the ld error message: /usr/bin/ld: cannot find -lstdc++ Th "ld" lines are: g++ -I/usr/local/sage-3.1/local/include/ -I/usr/local/sage-3.1/local/include -f PIC -funroll-loops -O3 -c NTL-interface.cpp -o NTL-interface.o gcc -std=c99 -fPIC -shared -Wl,-soname,lib`cat DIRNAME`.so -o lib`cat DIRNAME`.s o mpn_extras.o mpz_extras.o memory-manager.o ZmodF.o ZmodF_mul.o ZmodF_mul-tunin g.o fmpz.o fmpz_poly.o mpz_poly-tuning.o mpz_poly.o ZmodF_poly.o long_extras.o z mod_poly.o NTL-interface.o -L/usr/local/sage-3.1/local/lib/ -L/usr/local/sage-3.1/local/lib/ -lgmp -lpthread -lntl -lm -lstdc++ and so, we certainly try to find a libstdc++ in /usr/local/sage-3.1/local/lib/ and, actually, there is non stl lib installed there. The stl lib is system wide installed.... yours t.
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