diff --git a/build/pkgs/configure/checksums.ini b/build/pkgs/configure/checksums.ini
index a99beee334a..1b05b7cc2c5 100644
--- a/build/pkgs/configure/checksums.ini
+++ b/build/pkgs/configure/checksums.ini
@@ -1,3 +1,4 @@
+tarball=configure-VERSION.tar.gz
 sha1=63584e4da0b7b7c7a649da76c95dd60fec676adc
 md5=539bc61c8fc49db4e2d9b5555a87203a
 cksum=4072434824
diff --git a/build/pkgs/lcalc/patches/Makefile.patch b/build/pkgs/lcalc/patches/Makefile.patch
index e467b3f728a..1fea170cb6c 100644
--- a/build/pkgs/lcalc/patches/Makefile.patch
+++ b/build/pkgs/lcalc/patches/Makefile.patch
@@ -231,7 +231,7 @@ index 84e4e88..5d263a6 100644
 -	cp -rf ../include $(INSTALL_DIR)/include/Lfunction
 +	cp -f lcalc$(EXEEXT) $(INSTALL_DIR)/bin/.
 +	cp -f libLfunction$(LIBEXT) $(INSTALL_DIR)/lib/.
-+	cp -rf ../include $(INSTALL_DIR)/include/libLfunction
++	cp -rf ../include $(INSTALL_DIR)/include/Lfunction
  
  
  SRCS = Lcommandline.cc Lcommandline_elliptic.cc Lcommandline_globals.cc Lcommandline_misc.cc Lcommandline_numbertheory.cc Lcommandline_twist.cc Lcommandline_values_zeros.cc Lgamma.cc Lglobals.cc Lmisc.cc Lriemannsiegel.cc Lriemannsiegel_blfi.cc cmdline.c
diff --git a/build/pkgs/lcalc/spkg-configure.m4 b/build/pkgs/lcalc/spkg-configure.m4
index ec8ae3c346c..19a87c8d304 100644
--- a/build/pkgs/lcalc/spkg-configure.m4
+++ b/build/pkgs/lcalc/spkg-configure.m4
@@ -9,22 +9,12 @@ SAGE_SPKG_CONFIGURE([lcalc], [
            lcalc_ver=`$LCALC --version 2>>/dev/null | $SED -e 's/lcalc\ //' | $SED -e 's/\ .*//g'`
            AX_COMPARE_VERSION([$lcalc_ver], [ge], [$SAGE_LCALC_MINVER], [
                AC_MSG_RESULT([yes.])
-               AC_CHECK_HEADERS([Lfunction/L.h libLfunction/L.h],
-                  [AS_IF([test x$ac_cv_header_libLfunction_L_h = x],
-                         [SAGE_LCALC_INCDIR_NOLIBPREFIX='yes'],
-                         [SAGE_LCALC_INCDIR_NOLIBPREFIX=''])
-                   sage_spkg_install_lcalc=no
-                   break;],
-                  [sage_spkg_install_lcalc=yes])
+               AC_CHECK_HEADER([Lfunction/L.h], [], [sage_spkg_install_lcalc=yes])
           AC_MSG_CHECKING([whether we can link and run a program using libLfunction])
           LCALC_SAVED_LIBS=$LIBS
           LIBS="$LIBS -lLfunction"
           AC_RUN_IFELSE([
-            AC_LANG_PROGRAM([[#ifdef HAVE_LFUNCTION_L_H
-                                 #include <Lfunction/L.h>
-                              #else
-                                 #include <libLfunction/L.h>
-                              #endif]],
+            AC_LANG_PROGRAM([[#include <Lfunction/L.h>]],
                       [[initialize_globals();
                         Complex x;
                         x = Pi*I;
@@ -41,8 +31,4 @@ SAGE_SPKG_CONFIGURE([lcalc], [
         ])
     ])
     m4_popdef([SAGE_LCALC_MINVER])
-], [], [], [
-    AS_IF([test x$sage_spkg_install_lcalc = xyes],
-          [AC_SUBST(SAGE_LCALC_INCDIR_NOLIBPREFIX,[''])],
-          [AC_SUBST(SAGE_LCALC_INCDIR_NOLIBPREFIX,[$SAGE_LCALC_INCDIR_NOLIBPREFIX])])
 ])
diff --git a/src/bin/sage-env-config.in b/src/bin/sage-env-config.in
index 9ae53c5d12e..40e0705b226 100644
--- a/src/bin/sage-env-config.in
+++ b/src/bin/sage-env-config.in
@@ -108,5 +108,3 @@ if [ -n "$SAGE_PKG_CONFIG_PATH" ]; then
     # (Sage's pkgconf spkg takes care of this, if installed)
     export PKG_CONFIG_PATH="$SAGE_PKG_CONFIG_PATH${PKG_CONFIG_PATH:+:$PKG_CONFIG_PATH}"
 fi
-
-export SAGE_LCALC_INCDIR_NOLIBPREFIX="@SAGE_LCALC_INCDIR_NOLIBPREFIX@"
diff --git a/src/sage/env.py b/src/sage/env.py
index ed41e1cb967..cf83545b6fa 100644
--- a/src/sage/env.py
+++ b/src/sage/env.py
@@ -376,7 +376,6 @@ def cython_aliases():
          'GSL_INCDIR',
          'GSL_LIBDIR',
          'GSL_LIBRARIES',
-         'LCALC_INCDIR_NOLIBPREFIX',
          'LINBOX_CFLAGS',
          'LINBOX_INCDIR',
          'LINBOX_LIBDIR',
@@ -410,8 +409,4 @@ def cython_aliases():
     # fflas-ffpack and fflas-ffpack does add such a C++11 flag.
     aliases["LINBOX_CFLAGS"].append("-std=gnu++11")
     aliases["ARB_LIBRARY"] = os.environ.get('SAGE_ARB_LIBRARY', 'arb')
-    if os.environ.get('SAGE_LCALC_INCDIR_NOLIBPREFIX', '') != '':
-       aliases["LCALC_INCDIR_NOLIBPREFIX"] = '-DLCALC_INCDIR_NOLIBPREFIX'
-    else:
-       aliases["LCALC_INCDIR_NOLIBPREFIX"] = '-DLCALC_INCDIR_YESLIBPREFIX'
     return aliases
diff --git a/src/sage/libs/lcalc/lcalc_Lfunction.pxd b/src/sage/libs/lcalc/lcalc_Lfunction.pxd
index a9f05f888dd..d1dbb5d95d5 100644
--- a/src/sage/libs/lcalc/lcalc_Lfunction.pxd
+++ b/src/sage/libs/lcalc/lcalc_Lfunction.pxd
@@ -1,4 +1,3 @@
-# distutils: extra_compile_args = LCALC_INCDIR_NOLIBPREFIX
 cdef extern from "lcalc_sage.h":
     ctypedef struct doublevec "std::vector<double>":
         int (*size)()
diff --git a/src/sage/libs/lcalc/lcalc_sage.h b/src/sage/libs/lcalc/lcalc_sage.h
index f1d2491fdec..e4c4ccd1c87 100644
--- a/src/sage/libs/lcalc/lcalc_sage.h
+++ b/src/sage/libs/lcalc/lcalc_sage.h
@@ -1,8 +1,4 @@
-#ifdef LCALC_INCDIR_NOLIBPREFIX
-   #include "Lfunction/L.h"
-#else
-   #include "libLfunction/L.h"
-#endif
+#include "Lfunction/L.h"
 int *new_ints(int l)
 {
     return new int[l];
diff --git a/src/sage/version.py b/src/sage/version.py
index 7b101c7f650..2263de530ae 100644
--- a/src/sage/version.py
+++ b/src/sage/version.py
@@ -1,3 +1,5 @@
+# Sage version information for Python scripts
+# This file is auto-generated by the sage-update-version script, do not edit!
 version = '8.9.beta9'
 date = '2019-09-02'
 banner = 'SageMath version 8.9.beta9, Release Date: 2019-09-02'