The "other" fast compiler (tcc) can do this: https://bellard.org/tcc/tcc-doc.html https://bellard.org/tcc/tcc-doc.html > TCC can be invoked from scripts, just

The "other" fast compiler (tcc) can do this: https://bellard.org/tcc/tcc-doc.html https://bellard.org/tcc/tcc-doc.html > TCC can be invoked from scripts, just as shell scripts. You just need to add #!/usr/local/bin/tcc -run at the start of your C source: #!/usr/local/bin/tcc -run #include <stdio.h> int main() { printf("Hello World\n"); return 0; } And famously, with some patches it can compile the Linux kernel at boot time (in reasonable time): https://bellard.org/tcc/tccboot.html https://bellard.org/tcc/tccboot.html