Intel C Compiler: catastrophic error: Cannot open source file 'stdio.h'(MacOS Catalina 10.15)
icc -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include 
icpc -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include 
OR
icc main.c -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk 
icpc main.cpp -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk 
sdmrnv, 2022-10-18 [0.452ms, s]
