[gentoo-commits] repo/gentoo:master commit in: eclass/

[Sam James]

commit:     7011340a0f13dcada6f3be48054957035bc6e01a
Author:     Sam James <sam <AT> gentoo <DOT> org>
AuthorDate: Sat Sep 17 01:52:27 2022 +0000
Commit:     Sam James <sam <AT> gentoo <DOT> org>
CommitDate: Sat Sep 17 01:52:27 2022 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=7011340a

toolchain.eclass: fix building Clang on pure LLVM profiles

The features/clang profile sets AS="clang -c".

1. We can't use llvm-as because it's essentially for
internal use and isn't compatible anyway with cmdline args.

2. "clang -c" doesn't recognise --64 which configure
tries to add.

So, fake nothing to avoid configure trying to add that in.

See: 59d666d032353b054e3cdf4f18ad55e3346e73ca
Signed-off-by: Sam James <sam <AT> gentoo.org>

 eclass/toolchain.eclass | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/eclass/toolchain.eclass b/eclass/toolchain.eclass
index 71342765c78e..cc7e0d258767 100644
--- a/eclass/toolchain.eclass
+++ b/eclass/toolchain.eclass
@@ -901,6 +901,17 @@ toolchain_src_configure() {
                export ac_cv_std_swap_in_utility=no
        fi
 
+       if [[ $(tc-getAS) == *clang* ]] ; then
+               # The features/clang profile sets AS="clang -c".
+               # 1. We can't use llvm-as because it's essentially for
+               # internal use and isn't compatible anyway with cmdline args.
+               # 2. "clang -c" doesn't recognise --64 which configure
+               # tries to add.
+               # So, fake nothing to avoid configure trying to add that in.
+               einfo "Forcing blank gcc_cv_as_flags for AS='clang -c' 
compatibility"
+               export gcc_cv_as_flags=""
+       fi
+
        einfo "CFLAGS=\"${CFLAGS}\""
        einfo "CXXFLAGS=\"${CXXFLAGS}\""
        einfo "LDFLAGS=\"${LDFLAGS}\""