Proposed 3.3 patch: make -pthread work on sh4-*-linux-*, fixes testcasethread/pthread1.cc

[Dan Kegel <dkegel at ixiacom dot com>]

Currently, using the -pthread option on sh4-*-linux-gnu fails because of a broken spec file.
Here's an excerpt from the test run
http://www.kegel.com/crosstool/crosstool-0.14/summaries/sh4-unknown-linux-gnu-gcc-3.3-glibc-2.2.5.gcc.sum
showing a failure caused by this:

------------------------------------------------------------
		=== 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
------------------------------------------------------------

http://www.sh-linux.org/rpm-2003/SRPMS/gcc-3.2.3-3.src.rpm's
gcc-20030210-sh-linux-1.patch fixes this, as does Montavista's HardHat 2.0,
by adding the missing 'p' to the spec file.  Here's the
appropriate hunk (also brings in a fix for the documented -mieee option, which seems valid).

This passed a full build and test on sh4-linux and powerpc-linux; test summary for sh4 is at
http://www.kegel.com/crosstool/crosstool-0.14/summaries/sh4-unknown-linux-gnu-gcc-ss-3_3-20030714-glibc-2.2.5.gcc.sum
- 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