diff -ur /home/dan/src/M2/M2/BUILD/dan/builds.tmp/Ubuntu-17.04-x86_64.production/libraries/pari/tmp/pari-2.7.5/config/DOC_Make.SH pari-2.7.5/config/DOC_Make.SH
--- /home/dan/src/M2/M2/BUILD/dan/builds.tmp/Ubuntu-17.04-x86_64.production/libraries/pari/tmp/pari-2.7.5/config/DOC_Make.SH	2014-07-30 08:38:47.000000000 -0500
+++ pari-2.7.5/config/DOC_Make.SH	2017-04-17 09:39:03.146901861 -0500
@@ -12,7 +12,7 @@
 #  next time configure is run.
 #
 SHELL = $make_sh
-PERL  = $perl
+PERL  = $perl -I.
 TEX   = tex
 PDFTEX= pdftex
 
diff -ur /home/dan/src/M2/M2/BUILD/dan/builds.tmp/Ubuntu-17.04-x86_64.production/libraries/pari/tmp/pari-2.7.5/config/Makefile.SH pari-2.7.5/config/Makefile.SH
--- /home/dan/src/M2/M2/BUILD/dan/builds.tmp/Ubuntu-17.04-x86_64.production/libraries/pari/tmp/pari-2.7.5/config/Makefile.SH	2017-04-17 09:55:45.154766089 -0500
+++ pari-2.7.5/config/Makefile.SH	2014-12-13 14:52:52.000000000 -0600
@@ -168,7 +168,7 @@
 TOPDIR="$TOP"
 
 SHELL      = $make_sh
-PERL       = $perl
+PERL       = $perl -I.
 BISON      = bison
 AR         = ar
 RANLIB     = ranlib
