On Sun, Jul 21, 2024, at 5:20 AM, Eric Gallager via Patches for Automake wrote: > On darwin, the compiler will generate .dSYM directories (for debug > info) alongside executables when invoked, leading to messages like the > following in configure output: > > checking whether /usr/local/bin/gcc understands -c and -o together... > rm: conftest.dSYM: is a directory > yes > > The attached patch ought to fix this by passing the -r flag to the rm > invocation that's meant to clean up the conftests. One concern, > though, is that in the same invocation, it also tries to remove > anything called "core", so I worry what might happen with this change > if "core" happens to be a directory... should I handle that > separately?
Tests generated by autoconf proper use this formula for cleaning up after link tests: rm -f -r a.out a.exe b.out conftest.$ac_ext conftest.o conftest.obj conftest.dSYM I'd suggest that _AM_PROG_CC_C_O should be aligned with this - which means *not* deleting anything named 'core'. You may or may not have $ac_ext available; even if you don't I'd suggest that you also make the 'conftest*' glob more specific (without having looked at the rest of am-prog-cc-c-o.m4, something like 'conftest.c conftest.o conftest.obj conftest.dSYM' is probably close). zw
