https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79724
Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
CC| |charlet at adacore dot com,
| |derodat at adacore dot com,
| |fxcoudert at gcc dot gnu.org
Summary|please respect calling gnat |GNAT tools do not respect
|tools configured with |--program-suffix and
|--program-suffix and |--program-prefix
|--program-prefix |
Last reconfirmed| |2021-12-23
Status|UNCONFIRMED |NEW
--- Comment #1 from Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> ---
Confirmed. This is blocking Ada integration into Homebrew:
https://github.com/Homebrew/homebrew-core/pull/77641
We configure GCC with:
configure --prefix=/tmp/irun --enable-languages=all --program-suffix=-11
This leads to the installation of suffixed gnat tools:
meau /tmp/irun $ ls bin/gnat*
bin/gnat-11 bin/gnatchop-11 bin/gnatkr-11 bin/gnatls-11
bin/gnatname-11
bin/gnatbind-11 bin/gnatclean-11 bin/gnatlink-11 bin/gnatmake-11
bin/gnatprep-11
But they're not usable:
meau /tmp/irun $ gnatmake-11 hello.adb
gcc -c hello.adb
clang: error: unknown argument: '-gnatea'
clang: error: unknown argument: '-gnatez'
gnatmake-11: "hello.adb" compilation error
because gnatmake-11 is calling the unsuffixed `gcc`, which does not support
Ada.
(On macOS, this system compiler is a wrapper to clang.)
Even if I try to add some options to gnatmake, it will still somehow fail,
because the relevant options are not passed down to gnatlink:
meau /tmp/irun $ gnatmake-11 hello.adb --GCC=gcc-11 --GNATBIND=gnatbind-11
--GNATLINK=gnatlink-11
gcc-11 -c hello.adb
gnatbind-11 -x hello.ali
gnatlink-11 hello.ali
clang: error: unknown argument: '-gnatA'
clang: error: unknown argument: '-gnatWb'
clang: error: unknown argument: '-gnatiw'
clang: error: unknown argument: '-gnatws'
gnatmake-11: *** link failed.
