https://sourceware.org/bugzilla/show_bug.cgi?id=33103
Mark Wielaard <mark at klomp dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
--- Comment #5 from Mark Wielaard <mark at klomp dot org> ---
(In reply to Sergei Trofimovich from comment #4)
> Yes, I confirm that fixes build failure for my in-tree clang setup.
Thanks for testing, I committed that fix plus some comments to hopefully make
debugging these issues easier next time.
commit 76bd5f6bea9bbeed68b1434455e4904d0fc22b04
Author: Mark Wielaard <[email protected]>
Date: Thu Jun 26 15:06:07 2025 +0200
config: Adjust AM_CPPFLAGS for srcdir and .. path includes
When building with clang and libc++ some standard headers might try
including <stack> even when no source file requests such include
directly. When building with srcdir == builddir this might clash in
the src dir since we then build a stack binary there and the src dir
also has srcfiles.cxx which might include some standard c++ headers.
Work around this by removing -I.. from AM_CPPFLAGS and replacing it
with -I(abs_top_builddir) where the <config.h> file can be found. And
use -iquote for srcdir so it doesn't get included in the search path
for the system <header> includes (only for "header" includes).
Note that DEFAULT_INCLUDES might add . and srcdir back. So
DEFAULT_INCLUDES is disabled explicitly in src/Makefile.am (where the
stack binary is build). We could also use the nostdinc automake option
to completely suppress that, but that needs more auditing of various
installed vs not-installed header files.
* config/eu.am (AM_CPPFLAGS): Use -iquote for $(srcdir) and
replace -I.. with -I$(abs_top_builddir).
* libdw/libdwP.h: Include "libdw.h" and "dwarf.h" instead of
the system headers <libdw.h> and <dwarf.h>.
https://sourceware.org/bugzilla/show_bug.cgi?id=33103
Signed-off-by: Mark Wielaard <[email protected]>
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