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See http://gcc.gnu.org/PR11903
Patch to fix following test case failure:
=== libstdc++-v3 tests ===
FAIL: thread/pthread1.cc (test for excess errors)
Excess errors:
/opt/cegl-2.0/sh4-unknown-linux-gnu/gcc-ss-3_3-20030714-glibc-2.2.5/sh4-unknown-linux-gnu/bin/ld: cannot find -lthread
collect2: ld returned 1 exit status
Note that *any* program compiled with -pthread fails:
/opt/cegl-2.0/sh4-unknown-linux-gnu/gcc-ss-3_3-20030714-glibc-2.2.5/bin/sh4-unknown-linux-gnu-gcc hello.c -pthread
/opt/cegl-2.0/sh4-unknown-linux-gnu/gcc-ss-3_3-20030714-glibc-2.2.5/lib/gcc-lib/sh4-unknown-linux-gnu/3.3.1/../../../../sh4-unknown-linux-gnu/bin/ld: cannot find -lthread
collect2: ld returned 1 exit status
Compiling with -lpthread on the other hand works fine:
/opt/cegl-2.0/sh4-unknown-linux-gnu/gcc-ss-3_3-20030714-glibc-2.2.5/bin/sh4-unknown-linux-gnu-gcc hello.c -lpthread
So -pthread is broken in some trivial way; it should invoke -lpthread, not -lthread,
at least when targeting Linux.
http://www.sh-linux.org/rpm-2003/SRPMS/gcc-3.2.3-3.src.rpm contains a jumbo patch,
gcc-20030210-sh-linux-1.patch, that includes a fix for this. Here's the
appropriate hunk (brings in a fix for the documented -mieee option).
No idea if this fix is completely right, but it works for me...
- dank@kegel.com 20 Jul 2003
Index: linux.h
===================================================================
RCS file: /cvsroot/gcc/gcc/gcc/config/sh/linux.h,v
retrieving revision 1.9.20.1
diff -u -d -u -r1.9.20.1 linux.h
--- gcc-ss-3_3-20030714/gcc/config/sh/linux.h.old 6 Jun 2003 02:30:59 -0000 1.9.20.1
+++ gcc-ss-3_3-20030714/gcc/config/sh/linux.h 20 Jul 2003 23:36:50 -0000
@@ -59,7 +59,7 @@
#undef LIB_SPEC
#define LIB_SPEC \
"%{shared: -lc} \
- %{!shared: %{pthread:-lthread} \
+ %{!shared: %{mieee:-lieee} %{pthread:-lpthread} \
%{profile:-lc_p} %{!profile: -lc}}"
#undef STARTFILE_SPEC
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