On Friday 2022-11-18 22:57, Russ Allbery wrote: >madmurphy <madmurphy...@gmail.com> writes: > >> However, if at the same time I set also the libfoo_la_CPPFLAGS variable (no >> matter the content), as in the following example, > >> AM_CPPFLAGS = \ >> "-DLIBFOO_BUILD_MESSAGE=\"correctly defined via AM_CPPFLAGS\"" >> libfoo_la_CPPFLAGS = \ >> "-DLIBFOO_DUMMY=\"This is just a dummy text\"" > >> the AM_CPPFLAGS variable will be completely overwritten
It makes sense though. It's better that pertarget_CPPFLAGS overwrites, because otherwise... there would be no chance to dump (get rid) the AM_CPPFLAGS portion in the command-line - short of never setting AM_CPPFLAGS at all, which is not very economical if all you want to change is one target...
