Version 0.15 compile broke on Solaris 8

[Aaron Williams]

gcc -DLOCALEDIR=\"/opt/gcc4/share/locale\" -DBISON_LOCALEDIR=\"\" 
-DLOCALE_ALIAS_PATH=\"/opt/gcc4/share/locale\" -DUSEJEXE=0 
-DGETTEXTJEXEDIR=\"/opt/gcc4/lib/gettext\" 
-DGETTEXTJAR=\"/opt/gcc4/share/gettext/gettext.jar\" 
-DLIBDIR=\"/opt/gcc4/lib\" -DGETTEXTDATADIR=\"/opt/gcc4/share/gettext\" 
-DPROJECTSDIR=\"/opt/gcc4/share/gettext/projects\" -DHAVE_CONFIG_H -I. 
-I. -I..  -I. -I. -I.. -I../libgrep -I../libuniname -I../lib -I../lib 
-I../intl -I../../gettext-runtime/intl -DINSTALLDIR=\"/opt/gcc4/bin\" 
-D_REENTRANT -I/opt/gcc4/include  -g -O2 -c -o msginit-localealias.o 
`test -f '../../gettext-runtime/intl/localealias.c' || echo 
'./'`../../gettext-runtime/intl/localealias.c
/bin/bash ../libtool --tag=CC --mode=link gcc  -g -O2   -o msginit  
msginit-msginit.o msginit-lang-table.o msginit-plural-count.o 
msginit-localealias.o ../intl/localename.lo libgettextsrc.la
gcc -g -O2 -o .libs/msginit msginit-msginit.o msginit-lang-table.o 
msginit-plural-count.o msginit-localealias.o ../intl/.libs/localename.o  
./.libs/libgettextsrc.so 
/var/tmp/gcc4/gettext-0.15/gettext-tools/lib/.libs/libgettextlib.so 
-L/opt/gcc4/lib /opt/gcc4/lib/libiconv.so -lc  -Wl,--rpath -Wl,/opt/gcc4/lib
msginit-localealias.o: In function `_nl_expand_alias':
../../gettext-runtime/intl/localealias.c:163: undefined reference to 
`libintl_thread_in_use'
../../gettext-runtime/intl/localealias.c:210: undefined reference to 
`libintl_thread_in_use'
collect2: ld returned 1 exit status
make[4]: *** [msginit] Error 1
make[4]: Leaving directory `/var/tmp/gcc4/gettext-0.15/gettext-tools/src'
make[3]: *** [all] Error 2
make[3]: Leaving directory `/var/tmp/gcc4/gettext-0.15/gettext-tools/src'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/var/tmp/gcc4/gettext-0.15/gettext-tools'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/var/tmp/gcc4/gettext-0.15/gettext-tools'
make: *** [all-recursive] Error 1

I was able to get it to compile by putting #ifdef _LIBC around 
__libc_lock_lock and __libc_lock_unlock in _nl_expand_alias in 
gettext-runtime/intl/localealias.c

This was compiled on Sparc Solaris 2.8 with GCC 4.1.1.

Version 0.14.5 had the same #ifdef.  I am compiling with pthread thread 
support, though I saw the same problem if I did not specify the type of 
threads.