+AC_SUBST([FopCmd])
+])# FP_PROG_FOP
+
+
+# FP_PROG_FO_PROCESSOR
+# --------------------
+# Try to find an FO processor. PassiveTeX output is sometimes a bit strange, so
+# try FOP first. Sets the output variables FopCmd, XmltexCmd, DvipsCmd, and
+# PdfxmltexCmd.
+AC_DEFUN([FP_PROG_FO_PROCESSOR],
+[AC_REQUIRE([FP_PROG_FOP])
+AC_PATH_PROG([XmltexCmd], [xmltex])
+AC_PATH_PROG([DvipsCmd], [dvips])
+if test -z "$FopCmd"; then
+ if test -z "$XmltexCmd"; then
+ AC_MSG_WARN([cannot find an FO => DVI converter, you will not be able to build DVI or PostScript documentation])
+ else
+ if test -z "$DvipsCmd"; then
+ AC_MSG_WARN([cannot find a DVI => PS converter, you will not be able to build PostScript documentation])
+ fi
+ fi
+ AC_PATH_PROG([PdfxmltexCmd], [pdfxmltex])
+ if test -z "$PdfxmltexCmd"; then
+ AC_MSG_WARN([cannot find an FO => PDF converter, you will not be able to build PDF documentation])
+ fi
+elif test -z "$XmltexCmd"; then
+ AC_MSG_WARN([cannot find an FO => DVI converter, you will not be able to build DVI documentation])
+fi
+])# FP_PROG_FO_PROCESSOR
+
+
+# FP_PROG_GHC_PKG
+# ----------------
+# Try to find a ghc-pkg matching the ghc mentioned in the environment variable
+# WithGhc. If the latter is unset or no matching ghc-pkg can be found, try to
+# find a plain ghc-pkg. Sets the output variable GhcPkgCmd.
+AC_DEFUN([FP_PROG_GHC_PKG],
+[AC_CACHE_CHECK([for ghc-pkg matching $WithGhc], fp_cv_matching_ghc_pkg,
+[fp_ghc_pkg_guess=`echo $WithGhc | sed 's,ghc\(@<:@^/\\@:>@*\)$,ghc-pkg\1,'`
+if "$fp_ghc_pkg_guess" -l > /dev/null 2>&1; then
+ fp_cv_matching_ghc_pkg=$fp_ghc_pkg_guess
+else
+ fp_cv_matching_ghc_pkg=no
+fi])
+if test x"$fp_cv_matching_ghc_pkg" = xno; then
+ AC_PATH_PROG([GhcPkgCmd], [ghc-pkg])
+else
+ GhcPkgCmd=$fp_cv_matching_ghc_pkg
+fi])# FP_PROG_GHC_PKG