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add troubleshooting info for using tcc

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Timur Gordon
2025-03-13 13:07:00 +01:00
parent f6c22c733b
commit 83387c47ec
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README.md
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@@ -68,6 +68,44 @@ vtest ~/code/github/freeflowuniverse/herolib/lib/osal
vtest is an alias to test functionality
## Troubleshooting
### TCC Compiler Error on macOS
If you encounter the following error when using TCC compiler on macOS:
```
In file included from /Users/timurgordon/code/github/vlang/v/thirdparty/cJSON/cJSON.c:42:
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/math.h:614: error: ';' expected (got "__fabsf16")
```
This is caused by incompatibility between TCC and the half precision math functions in the macOS SDK. To fix this issue:
1. Open the math.h file:
```bash
sudo nano /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/math.h
```
2. Comment out the following lines (around line 612-626):
```c
/* half precision math functions */
// extern _Float16 __fabsf16(_Float16) __API_AVAILABLE(macos(15.0), ios(18.0), watchos(11.0), tvos(18.0));
// extern _Float16 __hypotf16(_Float16, _Float16) __API_AVAILABLE(macos(15.0), ios(18.0), watchos(11.0), tvos(18.0));
// extern _Float16 __sqrtf16(_Float16) __API_AVAILABLE(macos(15.0), ios(18.0), watchos(11.0), tvos(18.0));
// extern _Float16 __ceilf16(_Float16) __API_AVAILABLE(macos(15.0), ios(18.0), watchos(11.0), tvos(18.0));
// extern _Float16 __floorf16(_Float16) __API_AVAILABLE(macos(15.0), ios(18.0), watchos(11.0), tvos(18.0));
// extern _Float16 __rintf16(_Float16) __API_AVAILABLE(macos(15.0), ios(18.0), watchos(11.0), tvos(18.0));
// extern _Float16 __roundf16(_Float16) __API_AVAILABLE(macos(15.0), ios(18.0), watchos(11.0), tvos(18.0));
// extern _Float16 __truncf16(_Float16) __API_AVAILABLE(macos(15.0), ios(18.0), watchos(11.0), tvos(18.0));
// extern _Float16 __copysignf16(_Float16, _Float16) __API_AVAILABLE(macos(15.0), ios(18.0), watchos(11.0), tvos(18.0));
// extern _Float16 __nextafterf16(_Float16, _Float16) __API_AVAILABLE(macos(15.0), ios(18.0), watchos(11.0), tvos(18.0));
// extern _Float16 __fmaxf16(_Float16, _Float16) __API_AVAILABLE(macos(15.0), ios(18.0), watchos(11.0), tvos(18.0));
// extern _Float16 __fminf16(_Float16, _Float16) __API_AVAILABLE(macos(15.0), ios(18.0), watchos(11.0), tvos(18.0));
// extern _Float16 __fmaf16(_Float16, _Float16, _Float16) __API_AVAILABLE(macos(15.0), ios(18.0), watchos(11.0), tvos(18.0));
```
3. Save the file and try compiling again.
## important to read
- [aiprompts/starter/0_start_here.md](aiprompts/starter/0_start_here.md)