TCC fails with GNU’s regex.h:

echo '
                                              #include <regex.h>

                                              int main() { return 0; }' | tcc - -run
In file included from -:2:
/usr/include/regex.h:682: error: '__nmatch' undeclared

Would building it from source fix the issue? I know from my experience that Pop_OS! apt repositories are not very up-to-date with smaller apps. For example, NekoVM is from 2017, the latest one is from 22 I believe.