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-rw-r--r--Build/source/m4/kpse-xpdf-flags.m42
1 files changed, 2 insertions, 0 deletions
diff --git a/Build/source/m4/kpse-xpdf-flags.m4 b/Build/source/m4/kpse-xpdf-flags.m4
index 3591464133c..680c41baad8 100644
--- a/Build/source/m4/kpse-xpdf-flags.m4
+++ b/Build/source/m4/kpse-xpdf-flags.m4
@@ -9,6 +9,8 @@
# KPSE_XPDF_FLAGS
# ---------------
+# Provide the configure option '--with-system-xpdf' (if in the TL tree).
+#
# Set the make variables XPDF_INCLUDES and XPDF_LIBS to the CPPFLAGS and
# LIBS required for the `-lxpdf' library in libs/xpdf/ of the TL tree.
AC_DEFUN([KPSE_XPDF_FLAGS],