forked from hasufell/hasufell-repository
49 lines
1.7 KiB
Diff
49 lines
1.7 KiB
Diff
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From 375ef42393f3dc6edbaa2cb70c79b2366072db38 Mon Sep 17 00:00:00 2001
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From: Sergei Trofimovich <slyfox@gentoo.org>
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Date: Sun, 19 Jan 2020 15:24:20 +0000
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Subject: [PATCH] src/rc/rc-logger.h: fix build failure against gcc-10
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On gcc-10 (and gcc-9 -fno-common) build fails as:
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```
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cc -L../librc -L../libeinfo -O2 -g -std=c99 -Wall -Wextra -Wimplicit -Wshadow \
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-Wformat=2 -Wmissing-prototypes -Wmissing-declarations -Wmissing-noreturn \
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-Wmissing-format-attribute -Wnested-externs -Winline -Wwrite-strings \
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-Wcast-align -Wcast-qual -Wpointer-arith -Wdeclaration-after-statement \
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-Wsequence-point -Werror=implicit-function-declaration \
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-Wl,-rpath=/lib -o openrc rc.o rc-logger.o rc-misc.o rc-plugin.o _usage.o -lutil -lrc -leinfo -Wl,-Bdynamic -ldl
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ld: rc-logger.o:/home/slyfox/dev/git/openrc/src/rc/rc-logger.h:16:
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multiple definition of `rc_logger_pid'; rc.o:openrc/src/rc/rc-logger.h:16: first defined here
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ld: rc-logger.o:/home/slyfox/dev/git/openrc/src/rc/rc-logger.h:17:
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multiple definition of `rc_logger_tty'; rc.o:openrc/src/rc/rc-logger.h:17: first defined here
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```
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gcc-10 will change the default from -fcommon to fno-common:
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https://gcc.gnu.org/PR85678.
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The error also happens if CFLAGS=-fno-common passed explicitly.
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This fixes #348.
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---
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src/rc/rc-logger.h | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/src/rc/rc-logger.h b/src/rc/rc-logger.h
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index bf6e3e57..1da294b0 100644
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--- a/src/rc/rc-logger.h
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+++ b/src/rc/rc-logger.h
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@@ -13,8 +13,8 @@
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#ifndef RC_LOGGER_H
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#define RC_LOGGER_H
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-pid_t rc_logger_pid;
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-int rc_logger_tty;
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+extern pid_t rc_logger_pid;
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+extern int rc_logger_tty;
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extern bool rc_in_logger;
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void rc_logger_open(const char *runlevel);
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--
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2.29.0
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