If the build directory is not the source directory and the source dir…

…ectory

is read only, the build fails.  Fix by only making guile-strings.c if 
building from SVN.

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@19927 57a11ea4-9604-0410-9ed3-97b8803252fd

intl-scm/Makefile.am

@@ -12,9 +12,11 @@ BUILT_SOURCES = guile-strings.c
 
 SCMFILES = $(shell find ${abs_top_srcdir}/src -name test -prune -o -name '*.scm' -print | sort)
 
+if BUILDING_FROM_SVN
 # This needs to be generated in srcdir
 guile-strings.c: $(SCMFILES)
 	rm -f guile-strings.c
 	cd ${srcdir} && rm -f guile-strings.c \
 	&& ${GUILE} -s ./xgettext.scm ${abs_top_srcdir} $(SCMFILES)
 
+endif