> What in particular needs work on Windows 64bit?
libffi bindings only support win32, not win64; maybe a solution is to use a dll
for win64 instead of embedding the sources, see
[https://github.com/Araq/libffi/blob/master/libffi.nim#L14](https://github.com/Araq/libffi/blob/master/libffi.nim#L14)
> Is there a way that you currently use to import a C macro from a header file
> at compile time?
not that I know of but the following works:
when defined(timn_D20191211T153325):
{.emit:"""
// or: # include "temp.h" which would contain these macros:
#define MAX(a,b) ((a < b) ? (b) : (a))
#define MY_CONST1 "asdf"
#define MY_CONST2 23
// instantiate these macros to get concrete symbols
N_LIB_EXPORT int MAX_int(int a, int b){ return MAX(a, b);}
N_LIB_EXPORT char* get_MY_CONST1(){return MY_CONST1;}
N_LIB_EXPORT int get_MY_CONST2(){return MY_CONST2;}
""".}
else:
import std/[strformat,os,strutils]
const libF = "/tmp/" / (DynlibFormat % "D20191211T153325")
const nim = getCurrentCompilerExe()
const file = currentSourcePath()
static:
let cmd = fmt"{nim} c -d:timn_D20191211T153325 --app:lib -o:{libF}
{file}"
echo cmd
let (output, exitCode) = gorgeEx cmd
doAssert exitCode == 0, output
proc MAX_int(a, b: int): int {.importc, dynlib: libF.}
proc MY_CONST1(): cstring {.importc: "get_MY_CONST1", dynlib: libF.}
proc MY_CONST2(): cint {.importc: "get_MY_CONST2", dynlib: libF.}
proc main()=
doAssert MAX_int(2, 3) == 3
doAssert MY_CONST1() == "asdf"
doAssert MY_CONST2() == 23
static: main()
main()
Run
