ITS#9087 Let configure detect cross windres tool

.gitignore

@@ -147,6 +147,7 @@ libraries/liblunicode/ure.c
 libraries/liblunicode/ure.h
 libraries/liblunicode/urestubs.c
 libraries/liblunicode/version.c
+libraries/liblutil/slapdmsg.res
 libraries/liblutil/version.c
 libraries/librewrite/rewrite
 libraries/librewrite/version.c

configure.in

@@ -708,6 +708,8 @@ case $host_os in
   *interix* ) ac_cv_interix=yes ;;
 esac
 
+AC_CHECK_TOOL(RC, windres, )
+
 dnl ----------------------------------------------------------------
 dnl Checks for file extensions
 AC_EXEEXT

libraries/liblutil/Makefile.in

@@ -50,6 +50,8 @@ testtavl: $(XLIBS) testtavl.o
 # It's ok for them to be here because the clean rule is harmless, and
 # slapdmsg.res won't get built unless it's declared in OBJS.
 
+RC = @RC@
+
 slapdmsg.bin: FORCE
 	@if [ ! -f $@ ]; then cp $(srcdir)/$@ .; fi