Compilation error with SVN 13637

[Phil Longstaff]

make[7]: Entering directory `/home/phil/gnucash2/svn/gnucash/lib/libqof/backend/file'
if /bin/sh ../../../../libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I. -I. -I../../../.. -I../../../.. -I../../../.. -I../../../..    -I.. -I../.. -DLOCALE_DIR=\""/opt/gnucash2/share/locale"\" -I../../../../lib/libqof/qof -I../../../../lib/libqof/qof -I/usr/include/libxml2 -pthread -I/opt/gnome/include/glib-2.0 -I/opt/gnome/lib/glib-2.0/include   -O0 -g -Wall -Wunused -Wmissing-prototypes -Wmissing-declarations   -Werror -MT qsf-backend.lo -MD -MP -MF ".deps/qsf-backend.Tpo" -c -o qsf-backend.lo qsf-backend.c; \
then mv -f ".deps/qsf-backend.Tpo" ".deps/qsf-backend.Plo"; else rm -f ".deps/qsf-backend.Tpo"; exit 1; fi
 gcc -DHAVE_CONFIG_H -I. -I. -I../../../.. -I../../../.. -I../../../.. -I../../../.. -I.. -I../.. -DLOCALE_DIR=\"/opt/gnucash2/share/locale\" -I../../../../lib/libqof/qof -I../../../../lib/libqof/qof -I/usr/include/libxml2 -pthread -I/opt/gnome/include/glib-2.0 -I/opt/gnome/lib/glib-2.0/include -O0 -g -Wall -Wunused -Wmissing-prototypes -Wmissing-declarations -Werror -MT qsf-backend.lo -MD -MP -MF .deps/qsf-backend.Tpo -c qsf-backend.c  -fPIC -DPIC -o .libs/qsf-backend.o
qsf-backend.c: In function `qsf_provider_init':
qsf-backend.c:1252: warning: implicit declaration of function `setlocale'
qsf-backend.c:1252: error: `LC_ALL' undeclared (first use in this function)
qsf-backend.c:1252: error: (Each undeclared identifier is reported only once
qsf-backend.c:1252: error: for each function it appears in.)
make[7]: *** [qsf-backend.lo] Error 1

Phil