Build error

[rjo]

In v1.1.0 and v1.2.0 I get this error:

/Users/rjo/Projects/photopainter/ESP32-S3-PhotoPainter/01_Example/xiaozhi-esp32/managed_components/espressif__freetype/freetype/src/sfnt/ttsvg.c: In function 'tt_face_load_svg_doc':
/Users/rjo/Projects/photopainter/ESP32-S3-PhotoPainter/01_Example/xiaozhi-esp32/managed_components/espressif__freetype/freetype/src/sfnt/ttsvg.c:347:34: error: 'doc_length' may be used uninitialized [-Werror=maybe-uninitialized]
  347 |                     (FT_ULong)doc[doc_length - 4];
      |                                  ^
/Users/rjo/Projects/photopainter/ESP32-S3-PhotoPainter/01_Example/xiaozhi-esp32/managed_components/espressif__freetype/freetype/src/sfnt/ttsvg.c:296:16: note: 'doc_length' was declared here
  296 |     FT_ULong   doc_length;
      |                ^~~~~~~~~~

I'm using ESP-IDF v5.5.2. I also got this with v5.3.4.

[DrayxR3X]

Hi there,
I can successfully compile the project using IDF v5.5.2 on my end and am unable to reproduce the issue you're encountering. If possible, could you please package your complete code in its entirety and send it to my email address: 2578034394@qq.com.

[rjo]

@DrayxR3X sent.

[rjo]

@DrayxR3X Hey your email system bounced my mail reporting too many files in the attachment. It was a zip file. Not sure how to get you the whole project.

[DrayxR3X]

Please try the two solutions below in sequence:
1.Add the command “target_compile_options(freetype PRIVATE -Wno-maybe-uninitialized)“ at the end of the CMakeLists.txt file under the espressif__freetype component.
2.If Solution 1 fails to resolve the issue, then try adding the command ”add_compile_options(-Wno-maybe-uninitialized)“ at the end of the CMakeLists.txt file in the project root directory.

[DrayxR3X]

Essentially, this kind of warning (which may even turn into a compilation error) is caused by a variable being declared but not assigned an initial value. There is also an alternative approach: directly assign an arbitrary valid default value to the variable at the point of its declaration. You can rest assured that this will not affect the normal functionality of the program.