--- gperf-3.0.4/lib/configure.ac	2009-01-15 02:24:31.000000000 +0200
+++ gperf-3.0.4.patched/lib/configure.ac	2018-11-29 06:37:20.968627533 +0300
@@ -21,10 +21,12 @@
 
 AC_PREREQ([2.60])
 AC_INIT([hash.cc])
+m4_include([../aclocal.m4])
 AC_PROG_MAKE_SET
 dnl
 dnl           checks for programs
 dnl
+AC_SUBST([AR])
 AC_PROG_CC
                       dnl sets variable CC
 AC_PROG_CPP
--- gperf-3.0.4/lib/Makefile.in	2008-08-23 21:52:48.000000000 +0300
+++ gperf-3.0.4.patched/lib/Makefile.in	2018-11-29 06:36:43.161998888 +0300
@@ -41,7 +41,7 @@
 # Both C and C++ compiler
 OBJEXT = @OBJEXT@
 # Other
-AR = ar
+AR = @AR@
 AR_FLAGS = rc
 RANLIB = @RANLIB@
 MV = mv
--- gperf-3.0.4/doc/configure.ac	2009-01-15 02:24:31.000000000 +0200
+++ gperf-3.0.4.patched/doc/configure.ac	2018-11-29 06:36:00.961288421 +0300
@@ -21,6 +21,7 @@
 
 AC_PREREQ([2.60])
 AC_INIT([gperf.1])
+m4_include([../aclocal.m4])
 PACKAGE=gperf
 AC_SUBST([PACKAGE])
 AC_PROG_MAKE_SET
--- gperf-3.0.4/src/configure.ac	2009-01-15 02:24:30.000000000 +0200
+++ gperf-3.0.4.patched/src/configure.ac	2018-11-29 06:34:21.718576658 +0300
@@ -21,6 +21,7 @@
 
 AC_PREREQ([2.60])
 AC_INIT([main.cc])
+m4_include([../aclocal.m4])
 AC_CONFIG_HEADER([config.h])
 AC_PROG_MAKE_SET
 dnl