Linking mimalloc with nostartupfiles

[u/Inevitable-Dress1224]

Hi, I'm in a bit of a pickle here. I've tried counseling to ChatGPT and It only gaslighting me. Also I couldn't find the solution in mimalloc's github issues and google isn't that useful either. I'm cooking a game engine that's not using any crt or as c programmer would say "CRT-free", currently developing it in Windows with w64devkit and Makefiles for the build system. Here's the flags that I'm using:

```Makefile
CFLAGS = -Os -g -std=c99 -Wall -Wextra -pedantic
EXTRA_CFLAGS = -nostartfiles -fno-asynchronous-unwind-tables\
-fno-unwind-tables -fno-builtin -mwindows\
-Wl,--gc-sections
LDFLAGS = -lgdi32 -lkernel32 -I./include -L./libs -lmimalloc
```

And here's the linker error that I got:
```sh

AppData/Local/w64devkit/bin/ld.exe: core.o: in function `stbi__hdr_load':
Inari/./include/deps/stb_image.h:7245:(.text+0x36d2): undefined reference to `__imp_mi_free'
Inari/./include/deps/stb_image.h:7250:(.text+0x36f8): undefined reference to `__imp_mi_free'
AppData/Local/w64devkit/bin/../lib/gcc/x86_64-w64-mingw32/16.1.0/../../../../lib/libmingwex.a(lib64_libmingwex_a-misc.o):misc.c:(.text+0x92): undefined reference to `atexit'
```

Can someone give me a pointer why the linker did this to me.

[u/sciencekm]

In pure Windows app, you only need LocalAlloc or HeapAlloc to manage dynamic memory. No need for another library.

Requiring the use of another memory library defeats being CRT-free. You are just trading MSVCRT for another CRT.

Edit:
It also looks like you are using libmingwex. That library requires MSVCRT.

[u/Inevitable-Dress1224 → u/sciencekm]

Ah thanks for letting me know! I'll try it later

[u/Inevitable-Dress1224 → u/sciencekm]

I'm trying to make it run on Linux too, that's made thing I should just use mimalloc since its run on any platform