How to install nan.h on cygwin for g++?

Question

I can't build this simple program on cygwin:

#include <nan.h>
int main(){}

I get this error message:

$ g++ a.cpp
a.cpp:1:17: fatal error: nan.h: No such file or directory
compilation terminated.

Is it possible to install something on cygwin to get correct nan.h?

@StepanYakovenko In that case you need to supply the path to your header file. — Ron, Sep 04 '17 at 16:44
if you;re using gyp you need to require(v8). If you;re using cmake you'll want to require() one of the many helper modules (google cmake v8) — Richard Hodges, Sep 04 '17 at 16:46
@StepanYakovenko Did you follow their [installation instructions](https://boutell.com/fracster-src/doubledouble/doubledouble.html)? — user0042, Sep 04 '17 at 16:48

score 2 · Accepted Answer · answered Sep 04 '17 at 19:17

2

nan.h is an obsolete include of old gcc. On Cygwin NAN is defined on math.h

You can not use a software written in 2008
https://boutell.com/fracster-src/doubledouble/doubledouble.html
for such specific issue and just hope than it works out of the box.

answered Sep 04 '17 at 19:17

matzeri

score 0 · Answer 2 · answered Sep 04 '17 at 17:12

0

You need to figure out where nan.h is located and than Add this path to the includes.

answered Sep 04 '17 at 17:12

schorsch312

nan.h is missing in my /cygwin folder. Most probably it is deprecated and doubledouble is too old for modern C++ compiler to be built out of the box. – Stepan Yakovenko Sep 04 '17 at 17:16
@StepanYakovenko I believe the `long double` intrinsic type should already serve you well. – user0042 Sep 04 '17 at 17:22
Yes, but my final goal is to port doubledobule to Rust in order to emulate f128, which was deprecated recently. – Stepan Yakovenko Sep 04 '17 at 17:34

2 Answers2