Re: Retrieving the "include" directory for Emacs Modules

[Stefan Monnier via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org>]

> Careful: the above might pick up header files private to source
> distributions if you have them on your system (i.e., if you build
> packages locally from sources).  By contrast, this discussion is about
> _public_ header files, ones installed with the purpose of letting
> other packages interface with the package whose header file is
> installed.

I'll let you judge.


        Stefan


% locate '*.h' | sed 's|[^/]*$||' | sort -u | grep -v 'monnier\|/usr/include'
/usr/lib/clisp-2.49.93+/base/
/usr/lib/clisp-2.49.93+/linkkit/
/usr/lib/gcc/x86_64-linux-gnu/10/include/
/usr/lib/gcc/x86_64-linux-gnu/10/include/sanitizer/
/usr/lib/gcc/x86_64-linux-gnu/12/include/
/usr/lib/gcc/x86_64-linux-gnu/12/include/sanitizer/
/usr/lib/ghc/
/usr/lib/ghc/base-4.15.1.0/include/
/usr/lib/ghc/bytestring-0.10.12.1/include/
/usr/lib/ghc/ghc-9.0.2/include/
/usr/lib/ghc/ghc-bignum-1.1/include/
/usr/lib/ghc/include/
/usr/lib/ghc/include/rts/
/usr/lib/ghc/include/rts/prof/
/usr/lib/ghc/include/rts/storage/
/usr/lib/ghc/include/stg/
/usr/lib/ghc/process-1.6.13.2/include/
/usr/lib/ghc/time-1.9.3/include/
/usr/lib/ghc/unix-2.7.2.2/include/
/usr/lib/gprolog/include/
/usr/lib/grub/i386-pc/
/usr/lib/grub/x86_64-efi/
/usr/lib/haskell-packages/ghc/lib/x86_64-linux-ghc-9.0.2/primitive-0.7.3.0-EikPDi9CXNiB9f5MDJybeY/include/
/usr/lib/haskell-packages/ghc/lib/x86_64-linux-ghc-9.0.2/vector-0.12.3.1-TXkE6leK98EdYcmdk29JF/include/
/usr/lib/jvm/java-17-openjdk-amd64/include/
/usr/lib/jvm/java-17-openjdk-amd64/include/linux/
/usr/lib/llvm-14/lib/clang/14.0.6/include/
/usr/lib/llvm-14/lib/clang/14.0.6/include/openmp_wrappers/
/usr/lib/llvm-14/lib/clang/14.0.6/include/ppc_wrappers/
/usr/lib/llvm-14/lib/clang/14.0.6/include/xray/
/usr/lib/ocaml/caml/
/usr/lib/ocaml/zarith/
/usr/lib/python3/dist-packages/dulwich/
/usr/lib/python3/dist-packages/greenlet/
/usr/lib/python3/dist-packages/greenlet/platform/
/usr/lib/python3/dist-packages/lxml/
/usr/lib/python3/dist-packages/lxml/includes/
/usr/lib/swi-prolog/include/
/usr/lib/swi-prolog/include/sicstus/
/usr/lib/swi-prolog/include/Yap/
/usr/lib/x86_64-linux-gnu/dbus-1.0/include/dbus/
/usr/lib/x86_64-linux-gnu/glib-2.0/include/
/usr/lib/x86_64-linux-gnu/perl/5.36.0/CORE/
/usr/lib/x86_64-linux-gnu/perl5/5.36/B/Hooks/OP/Check/Install/
/usr/lib/x86_64-linux-gnu/perl5/5.36/Cairo/Install/
/usr/lib/x86_64-linux-gnu/perl5/5.36/Encode/
/usr/lib/x86_64-linux-gnu/perl5/5.36/Glib/Install/
/usr/lib/xemacs-21.4.24/x86_64-linux-gnu/include/
/usr/lib/xemacs-21.4.24/x86_64-linux-gnu/include/m/
/usr/lib/xemacs-21.4.24/x86_64-linux-gnu/include/s/
/usr/share/cmake-3.25/include/
/usr/share/cmake-3.25/Modules/
/usr/share/cups/ppdc/
/usr/share/doc/bison/examples/c/mfcalc/
/usr/share/doc/guile-3.0-dev/examples/compat/
/usr/share/doc/libzstd-dev/examples/
/usr/share/doc/nettle-dev/examples/
/usr/share/doc/printer-driver-pnm2ppa/pl/
/usr/share/doc/zlib1g-dev/examples/
/usr/share/gettext/
/usr/share/go-1.19/misc/cgo/life/testdata/
/usr/share/go-1.19/misc/cgo/test/
/usr/share/go-1.19/misc/cgo/testplugin/testdata/issue25756/plugin/
/usr/share/go-1.19/misc/cgo/testsovar/testdata/
/usr/share/go-1.19/misc/cgo/test/testdata/gcc68255/
/usr/share/go-1.19/misc/cgo/test/testdata/issue20266/
/usr/share/go-1.19/misc/cgo/test/testdata/issue26213/
/usr/share/go-1.19/misc/cgo/test/testdata/issue27054/
/usr/share/go-1.19/misc/swig/callback/
/usr/share/go-1.19/pkg/include/
/usr/share/go-1.19/src/crypto/internal/boring/
/usr/share/go-1.19/src/debug/dwarf/testdata/
/usr/share/go-1.19/src/debug/gosym/testdata/
/usr/share/go-1.19/src/runtime/
/usr/share/go-1.19/src/runtime/cgo/
/usr/share/grub/
/usr/share/libtool/
/usr/share/libtool/libltdl/
/usr/share/perl/5.36.0/Encode/
/usr/share/smartmontools/
/usr/src/libdvd-pkg/build/
/usr/src/libdvd-pkg/build/msvc/
/usr/src/libdvd-pkg/build/src/
/usr/src/libdvd-pkg/build/src/dvdcss/
/usr/src/linux-apfs-rw-0.3.0-1/
/usr/src/linux-apfs-rw-0.3.0-1/lzfse/
/var/lib/smartmontools/drivedb/
%