From 67af3a66d88baf2b9761f5f8c7c115a198a7f513 Mon Sep 17 00:00:00 2001
From: 0xFEEDC0DE64 <daniel@brunner.ninja>
Date: Thu, 27 Apr 2023 14:20:14 +0200
Subject: [PATCH] C++23 enable in CMakeLists.txt

---
 CMakeLists.txt              | 1 +
 cores/esp32/esp32-hal-spi.c | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 719461c6..1a8b73e1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -25,6 +25,7 @@ set(requires spi_flash mbedtls wifi_provisioning driver)
 set(priv_requires nvs_flash bootloader_support espcpputils fmt)
 
 idf_component_register(INCLUDE_DIRS ${includedirs} PRIV_INCLUDE_DIRS ${priv_includes} SRCS ${srcs} REQUIRES ${requires} PRIV_REQUIRES ${priv_requires})
+set_property(TARGET ${COMPONENT_LIB} PROPERTY CXX_STANDARD 23)
 
 if(IDF_TARGET STREQUAL "esp32")
 target_compile_options(${COMPONENT_TARGET} PUBLIC -DARDUINO=10812 -DARDUINO_ESP32_DEV -DARDUINO_ARCH_ESP32 -DARDUINO_BOARD="ESP32_DEV" -DARDUINO_VARIANT="esp32" -DESP32)
diff --git a/cores/esp32/esp32-hal-spi.c b/cores/esp32/esp32-hal-spi.c
index fc0b3540..2ac55dc0 100644
--- a/cores/esp32/esp32-hal-spi.c
+++ b/cores/esp32/esp32-hal-spi.c
@@ -1278,7 +1278,7 @@ uint32_t spiFrequencyToClockDiv(uint32_t freq)
                 memcpy(&bestReg, &reg, sizeof(bestReg));
                 break;
             } else if(calFreq < (int32_t) freq) {
-                if(abs(freq - calFreq) < abs(freq - bestFreq)) {
+                if(freq - calFreq < freq - bestFreq) {
                     bestFreq = calFreq;
                     memcpy(&bestReg, &reg, sizeof(bestReg));
                 }