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config: -pthread shouldn't link with -lpthread on Solaris

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libpthread has been folded into libc since Solaris 10 and replaced by a
filter on libc.  Linking with libpthread thus only creates unnecessary
runtime overhead.

This patch thus removes linking with -lpthread if -pthread/-pthreads is
specified, thus getting rid of the libpthread dependency in libatomic,
libgdruntime, libgomp, libgphobos, and libitm.

Bootstrapped without regressions on i386-pc-solaris2.11 and
sparc-sun-solaris2.11 (both Solaris 11.3 and 11.4).

2023-04-03  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	gcc:
	* config/sol2.h (LIB_SPEC): Don't link with -lpthread.
This commit is contained in:
Rainer Orth
2023-04-04 10:27:09 +02:00
parent d0b961b802
commit 7735b117bc
1 changed files with 0 additions and 1 deletions
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gcc/config/sol2.h
-1
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@@ -161,7 +161,6 @@ along with GCC; see the file COPYING3. If not see
#undef LIB_SPEC
#define LIB_SPEC \
"%{!symbolic:\
%{pthreads|pthread:-lpthread} \
%{p|pg:-ldl} -lc}"
#ifndef CROSS_DIRECTORY_STRUCTURE