diff --git a/Makefile.config.in b/Makefile.config.in
index fad077d86..b01a4afbf 100644
--- a/Makefile.config.in
+++ b/Makefile.config.in
@@ -18,7 +18,6 @@ LIBBROTLI_LIBS = @LIBBROTLI_LIBS@
 EDITLINE_LIBS = @EDITLINE_LIBS@
 bash = @bash@
 bindir = @bindir@
-brotli = @brotli@
 lsof = @lsof@
 datadir = @datadir@
 datarootdir = @datarootdir@
diff --git a/configure.ac b/configure.ac
index 85fec77a2..5a2526672 100644
--- a/configure.ac
+++ b/configure.ac
@@ -127,8 +127,6 @@ NEED_PROG(bzip2, bzip2)
 NEED_PROG(gzip, gzip)
 NEED_PROG(xz, xz)
 AC_PATH_PROG(dot, dot)
-AC_PATH_PROG(pv, pv, pv)
-AC_PATH_PROGS(brotli, brotli bro, bro)
 AC_PATH_PROG(lsof, lsof, lsof)
 
 
@@ -253,11 +251,6 @@ if test "$(uname)" = "Darwin"; then
 fi
 
 
-# Figure out the extension of dynamic libraries.
-eval dynlib_suffix=$shrext_cmds
-AC_SUBST(dynlib_suffix)
-
-
 # Do we have GNU tar?
 AC_MSG_CHECKING([if you have a recent GNU tar])
 if $tar --version 2> /dev/null | grep -q GNU && tar cvf /dev/null --warning=no-timestamp ./config.log > /dev/null; then
diff --git a/doc/manual/command-ref/nix-copy-closure.xml b/doc/manual/command-ref/nix-copy-closure.xml
index 800e1db6a..e6dcf180a 100644
--- a/doc/manual/command-ref/nix-copy-closure.xml
+++ b/doc/manual/command-ref/nix-copy-closure.xml
@@ -95,15 +95,6 @@ those paths.  If this bothers you, use
 
   </varlistentry>
 
-  <!--
-  <varlistentry><term><option>- -show-progress</option></term>
-
-    <listitem><para>Show the progress of each path's transfer as it's made.
-    This requires the <command>pv</command> utility to be in <envar>PATH</envar>.</para></listitem>
-
-  </varlistentry>
-  -->
-
   <varlistentry><term><option>--include-outputs</option></term>
 
     <listitem><para>Also copy the outputs of store derivations
diff --git a/src/libexpr/local.mk b/src/libexpr/local.mk
index daa3258f0..ccd5293e4 100644
--- a/src/libexpr/local.mk
+++ b/src/libexpr/local.mk
@@ -6,7 +6,7 @@ libexpr_DIR := $(d)
 
 libexpr_SOURCES := $(wildcard $(d)/*.cc) $(wildcard $(d)/primops/*.cc) $(d)/lexer-tab.cc $(d)/parser-tab.cc
 
-libexpr_LIBS = libutil libstore libformat
+libexpr_LIBS = libutil libstore
 
 libexpr_LDFLAGS =
 ifneq ($(OS), FreeBSD)
diff --git a/src/libmain/local.mk b/src/libmain/local.mk
index f1fd3eb72..0c80f5a0a 100644
--- a/src/libmain/local.mk
+++ b/src/libmain/local.mk
@@ -8,7 +8,7 @@ libmain_SOURCES := $(wildcard $(d)/*.cc)
 
 libmain_LDFLAGS = $(OPENSSL_LIBS)
 
-libmain_LIBS = libstore libutil libformat
+libmain_LIBS = libstore libutil
 
 libmain_ALLOW_UNDEFINED = 1
 
diff --git a/src/libstore/local.mk b/src/libstore/local.mk
index 3799257f8..89fc918c3 100644
--- a/src/libstore/local.mk
+++ b/src/libstore/local.mk
@@ -6,7 +6,7 @@ libstore_DIR := $(d)
 
 libstore_SOURCES := $(wildcard $(d)/*.cc $(d)/builtins/*.cc)
 
-libstore_LIBS = libutil libformat
+libstore_LIBS = libutil
 
 libstore_LDFLAGS = $(SQLITE3_LIBS) -lbz2 $(LIBCURL_LIBS) $(SODIUM_LIBS) -pthread
 ifneq ($(OS), FreeBSD)
diff --git a/src/libutil/local.mk b/src/libutil/local.mk
index 824f48fbf..3ccc23fd5 100644
--- a/src/libutil/local.mk
+++ b/src/libutil/local.mk
@@ -7,7 +7,3 @@ libutil_DIR := $(d)
 libutil_SOURCES := $(wildcard $(d)/*.cc)
 
 libutil_LDFLAGS = $(LIBLZMA_LIBS) -lbz2 -pthread $(OPENSSL_LIBS) $(LIBBROTLI_LIBS) -lboost_context
-
-libutil_LIBS = libformat
-
-libutil_CXXFLAGS = -DBROTLI=\"$(brotli)\"
diff --git a/src/nix/local.mk b/src/nix/local.mk
index 40a0e8d6b..ca4604d56 100644
--- a/src/nix/local.mk
+++ b/src/nix/local.mk
@@ -15,7 +15,7 @@ nix_SOURCES := \
   $(wildcard src/nix-prefetch-url/*.cc) \
   $(wildcard src/nix-store/*.cc) \
 
-nix_LIBS = libexpr libmain libstore libutil libformat
+nix_LIBS = libexpr libmain libstore libutil
 
 nix_LDFLAGS = -pthread $(SODIUM_LIBS) $(EDITLINE_LIBS)
 
diff --git a/src/resolve-system-dependencies/local.mk b/src/resolve-system-dependencies/local.mk
index 8792a4a25..f9db16268 100644
--- a/src/resolve-system-dependencies/local.mk
+++ b/src/resolve-system-dependencies/local.mk
@@ -6,6 +6,6 @@ resolve-system-dependencies_DIR := $(d)
 
 resolve-system-dependencies_INSTALL_DIR := $(libexecdir)/nix
 
-resolve-system-dependencies_LIBS := libstore libmain libutil libformat
+resolve-system-dependencies_LIBS := libstore libmain libutil
 
 resolve-system-dependencies_SOURCES := $(d)/resolve-system-dependencies.cc