fatal error: 'stdio.h' file not found

[anthonybudd]

Hi all,

I am trying to compile a simple Hello World Script.

#include <stdio.h>

char * c_hello() {
   return "Hello World"; 
}

I can compile it fine using mbebenita.github.io/WasmExplorer but when I try to compile it using the following command

./node_modules/.bin/wa compile -o HelloWorld.wasm HelloWorld.c

I get the following error

$> ./node_modules/.bin/wa compile -o HelloWorld.wasm HelloWorld.c
Compiling on darwin-x64 ...

clang HelloWorld.c 
 -c 
 --target=wasm32-unknown-unknown 
 -emit-llvm 
 -nostdinc 
 -nostdlib 
 -D WEBASSEMBLY 
 -isystem /Users/anthonybudd/Development/WebAssembly_HelloWorld/node_modules/webassembly/include 
 -o /var/folders/vl/3fkjykn52zdb88cv3flv75zr0000gn/T/wa1_7474HSLCSC30dn9g.tmp

HelloWorld.c:1:10: fatal error: 'stdio.h' file not found
#include <stdio.h>
         ^~~~~~~~~
1 error generated.
FAILED Error: code 1
    at ChildProcess.<anonymous> (/Users/anthonybudd/Development/WebAssembly_HelloWorld/node_modules/webassembly/cli/util.js:38:24)
    at ChildProcess.emit (events.js:200:13)
    at maybeClose (internal/child_process.js:1021:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:283:5)

FYI I know absolutely nothing about C. So apologies if this is a stupid question.