diff --git a/winsup/cygwin/Makefile.in b/winsup/cygwin/Makefile.in
index 2be5a565f..57facbb9d 100644
--- a/winsup/cygwin/Makefile.in
+++ b/winsup/cygwin/Makefile.in
@@ -38,8 +38,9 @@ datadir:=@datadir@
 infodir:=@infodir@
 includedir:=@includedir@
 
-INSTALL:=@INSTALL@
-INSTALL_PROGRAM:=@INSTALL_PROGRAM@
+override INSTALL:=@INSTALL@
+override INSTALL_PROGRAM:=@INSTALL_PROGRAM@
+override INSTALL_DATA:=@INSTALL_DATA@
 
 #
 # --enable options from configure
@@ -96,8 +97,6 @@ LDSCRIPT:=cygwin.sc
 #
 include $(srcdir)/../Makefile.common
 
-INSTALL_DATA:=$(SHELL) $(updir1)/install-sh -c
-
 @SET_MAKE@
 
 # Setup the testing framework, if you have one
diff --git a/winsup/cygwin/configure b/winsup/cygwin/configure
index 3ee7e3649..0a470252e 100755
--- a/winsup/cygwin/configure
+++ b/winsup/cygwin/configure
@@ -533,7 +533,7 @@ fi
 
 
 
-INSTALL=`cd $srcdir/../..; echo $(pwd)/install-sh`
+INSTALL="/bin/sh "`cd $srcdir/../..; echo $(pwd)/install-sh`
 
 ac_aux_dir=
 for ac_dir in $srcdir $srcdir/.. $srcdir/../..; do
diff --git a/winsup/cygwin/configure.in b/winsup/cygwin/configure.in
index 6ffce51f2..2d1d58321 100644
--- a/winsup/cygwin/configure.in
+++ b/winsup/cygwin/configure.in
@@ -13,7 +13,7 @@ AC_PREREQ(2.12)dnl
 AC_INIT(init.cc)
 AC_CONFIG_HEADER(config.h)
 
-INSTALL=`cd $srcdir/../..; echo $(pwd)/install-sh`
+INSTALL="/bin/sh "`cd $srcdir/../..; echo $(pwd)/install-sh`
 
 AC_PROG_INSTALL
 
diff --git a/winsup/utils/Makefile.in b/winsup/utils/Makefile.in
index 4c897dca2..a52d48fca 100644
--- a/winsup/utils/Makefile.in
+++ b/winsup/utils/Makefile.in
@@ -18,9 +18,9 @@ bindir:=@bindir@
 etcdir:=$(exec_prefix)/etc
 program_transform_name:=@program_transform_name@
 
-INSTALL:=@INSTALL@
-INSTALL_PROGRAM:=@INSTALL_PROGRAM@
-INSTALL_DATA:=@INSTALL_DATA@
+override INSTALL:=@INSTALL@
+override INSTALL_PROGRAM:=@INSTALL_PROGRAM@
+override INSTALL_DATA:=@INSTALL_DATA@
 
 EXEEXT:=@EXEEXT@
 EXEEXT_FOR_BUILD:=@EXEEXT_FOR_BUILD@
diff --git a/winsup/utils/configure b/winsup/utils/configure
index b3ec82468..aeeb49192 100755
--- a/winsup/utils/configure
+++ b/winsup/utils/configure
@@ -951,7 +951,7 @@ if test "x$cross_compiling" = "xyes"; then
   fi
 fi
 
-INSTALL=`cd $srcdir/../..; echo $(pwd)/install-sh`
+INSTALL="/bin/sh "`cd $srcdir/../..; echo $(pwd)/install-sh`
 
 # Find a good install program.  We prefer a C program (faster),
 # so one script is as good as another.  But avoid the broken or
diff --git a/winsup/utils/configure.in b/winsup/utils/configure.in
index 486270c48..95421a86e 100644
--- a/winsup/utils/configure.in
+++ b/winsup/utils/configure.in
@@ -83,7 +83,7 @@ if test "x$cross_compiling" = "xyes"; then
   fi
 fi
 
-INSTALL=`cd $srcdir/../..; echo $(pwd)/install-sh`
+INSTALL="/bin/sh "`cd $srcdir/../..; echo $(pwd)/install-sh`
 
 AC_PROG_INSTALL