+dnl
+dnl Check for windres and version.
+dnl 2.15.91 works
+dnl 2.17.50 doesn't work
+dnl 2.18.50 works
+dnl
+AC_DEFUN([FPTOOLS_WINDRES],
+[
+if test "x$HostPlatform" = "xi386-unknown-mingw32"
+then
+ AC_PATH_PROG(WindResCmd,windres,)
+ # Alex is passed to Cabal, so we need a native path
+ if test "${OSTYPE}" != "msys" && \
+ test "${WindResCmd}" != ""
+ then
+ # Canonicalise to <drive>:/path/to/gcc
+ WindResCmd=`cygpath -m ${WindResCmd}`
+ fi
+
+ AC_CACHE_CHECK([for version of windres], fptools_cv_windres_version,
+ changequote(, )dnl
+ [
+ if test x"$WindResCmd" != x
+ then
+ fptools_cv_windres_version="`$WindResCmd --version |
+ grep 'GNU windres' |
+ sed -e 's/GNU windres[^0-9]* \([0-9\.]*\).*/\1/g'`" ;
+ else
+ fptools_cv_windres_version="";
+ fi
+ changequote([, ])dnl
+ ])
+ FP_COMPARE_VERSIONS([$fptools_cv_windres_version],[-eq],[2.17.50],
+ [AC_MSG_ERROR([Your windres version isn't compatible with GHC. 2.15.91 and 2.18.50 are known to work.])])[]dnl
+ indResVersion=$fptools_cv_windres_version;
+ AC_SUBST(WindResVersion)
+fi
+])
+
+