Install fails on 10.11.6 (El Capitan): undeclared identifier 'NAN'

[aprnath]

I followed instruction on El Capitan (10.11.6), and get the following message:

% brew install riscv-tools ==> Installing riscv-tools from riscv/riscv ==> Installing dependencies for riscv/riscv/riscv-tools: riscv-isa-sim, riscv-gcc, riscv-pk ==> Installing riscv/riscv/riscv-tools dependency: riscv-isa-sim ==> Cloning https://github.com/riscv/riscv-isa-sim.git Updating /Users/ajay/Library/Caches/Homebrew/riscv-isa-sim--git ==> Checking out branch master ==> ../configure --prefix=/usr/local/Cellar/riscv-isa-sim/isa ==> make install Last 15 lines from /Users/ajay/Library/Logs/Homebrew/riscv-isa-sim/02.make: /usr/bin/install -c -m 444 $file /usr/local/Cellar/riscv-isa-sim/isa/include/spike; \ done clang++ -fPIC -MMD -MP -Wall -Wno-unused -g -O2 -std=c++11 -DPREFIX=\"/usr/local/Cellar/riscv-isa-sim/isa\" -I. -I.. -I../riscv -I../dummy_rocc -I../softfloat -I../spike_main -c ../riscv/processor.cc clang++ -fPIC -MMD -MP -Wall -Wno-unused -g -O2 -std=c++11 -DPREFIX=\"/usr/local/Cellar/riscv-isa-sim/isa\" -I. -I.. -I../riscv -I../dummy_rocc -I../softfloat -I../spike_main -c ../riscv/execute.cc clang++ -fPIC -MMD -MP -Wall -Wno-unused -g -O2 -std=c++11 -DPREFIX=\"/usr/local/Cellar/riscv-isa-sim/isa\" -I. -I.. -I../riscv -I../dummy_rocc -I../softfloat -I../spike_main -c ../riscv/sim.cc clang++ -fPIC -MMD -MP -Wall -Wno-unused -g -O2 -std=c++11 -DPREFIX=\"/usr/local/Cellar/riscv-isa-sim/isa\" -I. -I.. -I../riscv -I../dummy_rocc -I../softfloat -I../spike_main -c ../riscv/interactive.cc ../riscv/interactive.cc:250:59: error: use of undeclared identifier 'NAN' fprintf(stderr, "%g\n", isBoxedF32(f.r) ? (double)f.s : NAN); ^ ../riscv/interactive.cc:257:51: error: use of undeclared identifier 'NAN' fprintf(stderr, "%g\n", isBoxedF64(f.r) ? f.d : NAN); ^ 2 errors generated. make: [interactive.o] Error 1 make: Waiting for unfinished jobs....

Any ideas?

[sbeamer]

I would try it again. I think this was a problem upstream for riscv-isa-sim, and they just fixed it.

[aprnath]

Thanks sbeamer. Indeed, it builds with the latest updates.