Hi, On 29.03.21 16:20, Peng Yu wrote:
> crypt(3) does not need -lcrypt on macOS, but need -lcrypt on Linux. > How does autotools determine what library is need to be linked based > on the source code? Thanks. It compiles a short test program that calls crypt, then tries to link it without any extra libraries, and if that fails, retries with -lcrypt. It does not look at the source code of the project at all, the configure.ac just includes a reference to the test to be run, and a copy of the test is included in the configure script. Simon
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