In 'secure_boot.h' a 'extern "C" {' statement is missing a closing '}' resulting in failed compilation esp-idf-v4.1 (IDFGH-3998)

[GuyMinibrew]

Environment

• Development Kit: [none]
• Kit version (for WroverKit/PicoKit/DevKitC): [v4]
• Module or chip used: [ESP32]
• IDF version (run git describe --tags to find it): v4.1-273-g94cb7e8b8
• Build System: [idf.py]
• Compiler version (run xtensa-esp32-elf-gcc --version to find it): xtensa-esp32-elf-gcc (crosstool-NG esp-2019r2) 8.2.0
• Operating System: [macOS]
• Using an IDE?: [No]
• Power Supply: [5V]

Problem Description

Quite simply, on commit: 60fed38

File path:
esp-idf/components/esp_rom/include/esp32/rom/secure_boot.h

This statement was deleted:
_#ifdef _cplusplus
}
#endif

But this statement still remains unchanged:
_#ifdef _cplusplus
extern "C" {
#endif

This results in missing "}" clause, causing havoc if secure boot is used in ESP-IDF-v4.
See compilation output below.

Expected Behavior

Compilation successful.

Actual Behavior

Compilation fails.

Steps to reproduce

Compile with secure boot enabled and include <esp_secure_boot.h>

Debug Logs

../main/Machine.cpp:1538:1: error: expected '}' at end of input
 }
 ^
In file included from ../esp/esp-idf/components/bootloader_support/include/esp_secure_boot.h:25,
                 from ../main/Machine.cpp:34:
../esp/esp-idf/components/esp_rom/include/esp32/rom/secure_boot.h:23:12: note: to match this '{'
 extern "C" {
            ^
ninja: build stopped: subcommand failed.
ninja failed with exit code 1

[Alvin1Zhang]

Thanks for reporting, we will look into.