package/gcc: allow uclibc only for gcc or1k (5.x)

uClibc doesn't build with the upstream binutils 2.32.x and gcc or1k
port due to the following error:

LD libuClibc-1.0.31.so
/opt/openrisc--uclibc--bleeding-edge-1/lib/gcc/or1k-buildroot-linux-uclibc/9.2.0/../../../../or1k-buildroot-linux-uclibc/bin/ld:
libc/libc_so.a(or1k_clone.os): pc-relative relocation against dynamic symbol
__syscall_error

See:
https://gitlab.com/kubu93/toolchains-builder/-/jobs/270854456

This error message come from a new check in binutils 2.32.x:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commitdiff;h=f2c1801f6255a3f9f483ae2f07c7d7da0ddae4af

This issue has been reported on the uClibc-ng mailing list:
https://mailman.uclibc-ng.org/pipermail/devel/2019-August/001885.html

Since gcc 9.1 needs binutils 2.32.x or later to build successfully for
or1k, there is no binutils version left that can build gcc 9.1 and
uClibc.

For now, disable uClibc if gcc 9.1 is used for or1k.

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Cc: Waldemar Brodkorb <mail@waldemar-brodkorb.de>
[Arnout: invert the logic, like in the rest of the file]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

diff --git a/package/gcc/Config.in.host b/package/gcc/Config.in.host
index b435614330f3669e3c0cf98024b8fa298b28880a..4425be9df378e47f0eda99f9738c8146e629f2db 100644 (file)
--- a/package/gcc/Config.in.host
+++ b/package/gcc/Config.in.host
@@ -62,6 +62,9 @@ config BR2_GCC_VERSION_9_X
        # or1k needs binutils >= 2.32
        depends on !(BR2_or1k && \
                (BR2_BINUTILS_VERSION_2_30_X || BR2_BINUTILS_VERSION_2_31_X))
+       # uClibc doesn't build with upstream or1k gcc
+       # https://mailman.uclibc-ng.org/pipermail/devel/2019-August/001885.html
+       depends on !(BR2_or1k && BR2_TOOLCHAIN_USES_UCLIBC)
        # powerpc spe support has been deprecated since gcc 8.x.
        # https://gcc.gnu.org/ml/gcc/2018-04/msg00102.html
        depends on !BR2_powerpc_SPE