* [gentoo-commits] repo/gentoo:master commit in: eclass/
@ 2018-04-29 15:31 99% Sergei Trofimovich
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From: Sergei Trofimovich @ 2018-04-29 15:31 UTC (permalink / raw
To: gentoo-commits
commit: e4da4705a51d46236f3e9a0d2c850455b7d9772c
Author: Sergei Trofimovich <slyfox <AT> gentoo <DOT> org>
AuthorDate: Sun Apr 29 15:26:25 2018 +0000
Commit: Sergei Trofimovich <slyfox <AT> gentoo <DOT> org>
CommitDate: Sun Apr 29 15:31:31 2018 +0000
URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=e4da4705
eclass/toolchain.eclass: disable libstdcxx-time for bare metal
Historically Gentoo unconditionally sets --enable-libstdcxx-time=yes
to avoid --enable-libstdcxx-time=rt on linux targets, bug #411681
Unfortunately this conflicts with arm-none-eabi and other
bare-metal targets that don't provide enough plumbing
to support for POSIX timers.
This change ogerrides our default to --disable-libstdcxx-time
on *-elf and *-eabi targets.
Tested as:
$ crossdev --stage4 arm-none-eabi
Reported-by: scheer <AT> wsoptics.de
Reported-by: Thomas Schneider
Bug: https://bugs.gentoo.org/411681
Bug: https://bugs.gentoo.org/589672
Signed-off-by: Sergei Trofimovich <slyfox <AT> gentoo.org>
eclass/toolchain.eclass | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/eclass/toolchain.eclass b/eclass/toolchain.eclass
index df76dc4feb8..c942a112c75 100644
--- a/eclass/toolchain.eclass
+++ b/eclass/toolchain.eclass
@@ -971,7 +971,14 @@ toolchain_src_configure() {
case ${CTARGET} in
*-linux) needed_libc=no-fucking-clue;;
*-dietlibc) needed_libc=dietlibc;;
- *-elf|*-eabi) needed_libc=newlib;;
+ *-elf|*-eabi)
+ needed_libc=newlib
+ # Bare-metal targets don't have access to clock_gettime()
+ # arm-none-eabi example: bug #589672
+ # But we explicitly do --enable-libstdcxx-time above.
+ # Undoing it here.
+ confgcc+=( --disable-libstdcxx-time )
+ ;;
*-freebsd*) needed_libc=freebsd-lib;;
*-gnu*) needed_libc=glibc;;
*-klibc) needed_libc=klibc;;
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