On Sunday, 17 October 2021 at 02:45:03 UTC, data pulverizer wrote:
While we're on this subject, I've been having similar issues
now tried compiling @rempas's example file with:
```
gcc test_og.c -c -o test_og.o
dmd test.d test_og.o
```
and get the response:
```
test_og.c(1): Error: identifier or `(` expected
test_og.c(6): Error: identifier or `(` expected
```
You're not doing this with the files in the thread, or you'd get
```
test.d(1): Error: module `test_c` is in file 'test_c.d' which
cannot be read
```
as test.d is still importing test_c.c, a different file from
test_og.o
I get your error if the original test_og.c is used but test.d is
modified to import test_og.c:
```d
import test_og;
void main() {
hello_world();
}
```
In this case, your compilation to test_og.o doesn't matter; D is
still trying to import test_og.c, and since that file has CPP
`#include` directives which importC doesn't support, it's
erroring out on those.
To link in a C object rather than use importC, you'd need this
test.d:
```d
extern (C) void hello_world();
void main() {
hello_world();
}
```
With which:
```
$ gcc test_og.c -c -o test_og.o
$ dmd test.d test_og.o
$ ./test
Hello world!!!
```
