On Thu, Oct 20, 2016 at 8:33 PM, Bob Friesenhahn <bfrie...@simple.dallas.tx.us> wrote: > On Thu, 20 Oct 2016, Pauli . wrote: >> >> >> In many cases partial build with differing flags can results to hard >> to debug runtime bugs. To avoid issues when compiler flags change >> build system could automatically rebuild files when flags change. But >> so far automake doesn't support flag change checking > > > Why do compiler flags change? Did you re-run configure with different > CPPFLAGS/CFLAGS or are these flags induced on the make command line or via > environment variables? >
It can happen for many reason but most likely to cause trouble for developer is when configure.ac changes which leads to automatic reconfigure with different flags. Pauli
