C++ build problem (already fixed June 21 but not included in 5.3) (IDFGH-13331)

[dannybackx]

Answers checklist.

• I have read the documentation ESP-IDF Programming Guide and the issue is not addressed there.
• I have updated my IDF branch (master or release) to the latest version and checked that the issue is present there.
• I have searched the issue tracker for a similar issue and not found a similar issue.

IDF version.

5.3

Operating System used.

Linux

How did you build your project?

Command line with idf.py

If you are using Windows, please specify command line type.

None

What is the expected behavior?

No compile errors

What is the actual behavior?

In file included from /home/danny/src/github/esp32/esp-idf-v5.3/components/esp_lcd/include/esp_lcd_panel_io.h:12,
                 from /home/danny/src/esp-idf/ZX3D95CD01S/minimal-gc9503/managed_components/espressif__esp_lcd_touch/include/esp_lcd_touch.h:18,
                 from /home/danny/src/esp-idf/ZX3D95CD01S/minimal-gc9503/managed_components/espressif__esp_lcd_touch_ft5x06/include/esp_lcd_touch_ft5x06.h:14,
                 from /home/danny/src/esp-idf/ZX3D95CD01S/minimal-gc9503/main/ft5x06.cpp:14:
/home/danny/src/github/esp32/esp-idf-v5.3/components/esp_lcd/include/esp_lcd_io_i2c.h:82:37: error: found ':' in nested-name-specifier, expected '::'
   82 |             i2c_master_bus_handle_t : esp_lcd_new_panel_io_i2c_v2, \
      |                                     ^
/home/danny/src/esp-idf/ZX3D95CD01S/minimal-gc9503/main/ft5x06.cpp:100:3: note: in expansion of macro 'esp_lcd_new_panel_io_i2c'
  100 |   esp_lcd_new_panel_io_i2c((esp_lcd_i2c_bus_handle_t)I2C_NUM_0, &io_config, &tp_io_handle);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~
/home/danny/src/github/esp32/esp-idf-v5.3/components/esp_lcd/include/esp_lcd_io_i2c.h:82:13: error: 'i2c_master_bus_handle_t' is not a class, namespace, or enumeration
   82 |             i2c_master_bus_handle_t : esp_lcd_new_panel_io_i2c_v2, \
      |             ^~~~~~~~~~~~~~~~~~~~~~~
/home/danny/src/esp-idf/ZX3D95CD01S/minimal-gc9503/main/ft5x06.cpp:100:3: note: in expansion of macro 'esp_lcd_new_panel_io_i2c'
  100 |   esp_lcd_new_panel_io_i2c((esp_lcd_i2c_bus_handle_t)I2C_NUM_0, &io_config, &tp_io_handle);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~
/home/danny/src/github/esp32/esp-idf-v5.3/components/esp_lcd/include/esp_lcd_io_i2c.h:83:13: error: expected primary-expression before 'default'
   83 |             default : esp_lcd_new_panel_io_i2c_v1) (bus, io_config, ret_io) \
      |             ^~~~~~~
/home/danny/src/esp-idf/ZX3D95CD01S/minimal-gc9503/main/ft5x06.cpp:100:3: note: in expansion of macro 'esp_lcd_new_panel_io_i2c'
  100 |   esp_lcd_new_panel_io_i2c((esp_lcd_i2c_bus_handle_t)I2C_NUM_0, &io_config, &tp_io_handle);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~
/home/danny/src/github/esp32/esp-idf-v5.3/components/esp_lcd/include/esp_lcd_io_i2c.h:81:58: error: '_Generic' was not declared in this scope
   81 | #define esp_lcd_new_panel_io_i2c(bus, io_config, ret_io) _Generic((bus),  \
      |                                                          ^~~~~~

Steps to reproduce.

Compile something that includes esp_lcd_new_panel_io_i2c with a C++ compiler

Build or installation Logs.

see above

More Information.

Fixed in #14037 but not included in 5.3, or so it would appear

[suda-morris]

The backport has merged in our internal Gitlab server. It just needs some time to get synced to Github.

[suda-morris]

Fixed in 0903bcc