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[Qemu-devel] [PULL 09/51] build-sys: fix qemu-ga -pthread linking
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PULL 09/51] build-sys: fix qemu-ga -pthread linking |
Date: |
Tue, 16 Jan 2018 15:16:51 +0100 |
From: Marc-André Lureau <address@hidden>
When linking qemu-ga under some configuration (when gthread-2.0.pc
doesn't have -pthread, as happening atm with meson build), you may
have this linking issue:
/usr/bin/ld: libqemuutil.a(qemu-thread-posix.o): undefined reference to symbol
'pthread_setname_np@@GLIBC_2.12'
/usr/lib64/libpthread.so.0: error adding symbols: DSO missing from command line
Make sure qemu-ga links with the pthread library, by adding correct
flags to libs_qga.
This is really a QEMU bug, because it's QEMU code that's using pthread
functions, and so we must explicitly link against pthreads. The bug
was just masked by the fact that often some pkg-config or another for
one of our dependencies will add -pthread to the link line anyway.
Signed-off-by: Marc-André Lureau <address@hidden>
Reviewed-by: Peter Maydell <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
configure | 1 +
1 file changed, 1 insertion(+)
diff --git a/configure b/configure
index 89bd662..ac392d2 100755
--- a/configure
+++ b/configure
@@ -3464,6 +3464,7 @@ else
done
if test "$found" = "no"; then
LIBS="$pthread_lib $LIBS"
+ libs_qga="$pthread_lib $libs_qga"
fi
PTHREAD_LIB="$pthread_lib"
break
--
1.8.3.1
- [Qemu-devel] [PULL 02/51] scsi: fix scsi_convert_sense crash when in_buf == NULL && in_len == 0, (continued)
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- [Qemu-devel] [PULL 09/51] build-sys: fix qemu-ga -pthread linking,
Paolo Bonzini <=
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