diff --git a/newlib/configure.ac b/newlib/configure.ac
index 6d89c3a32..a7fe598d6 100644
--- a/newlib/configure.ac
+++ b/newlib/configure.ac
@@ -279,7 +279,7 @@ _LT_PROG_ECHO_BACKSLASH
 AC_PROG_AWK
 if test "${use_libtool}" = "yes"; then
 AC_LIBTOOL_WIN32_DLL
-AM_PROG_LIBTOOL
+LT_INIT
 fi
 
 dnl The following is being disabled because the mathfp library is
diff --git a/newlib/iconvdata/configure.ac b/newlib/iconvdata/configure.ac
index 48112233c..7840b2b6e 100644
--- a/newlib/iconvdata/configure.ac
+++ b/newlib/iconvdata/configure.ac
@@ -16,7 +16,7 @@ _LT_DECL_SED
 _LT_PROG_ECHO_BACKSLASH
 if test "${use_libtool}" = "yes"; then
 AC_LIBTOOL_WIN32_DLL
-AM_PROG_LIBTOOL
+LT_INIT
 fi
 
 AC_CONFIG_FILES([Makefile])
diff --git a/newlib/libc/configure.ac b/newlib/libc/configure.ac
index 3ffc02186..764b0bc0f 100644
--- a/newlib/libc/configure.ac
+++ b/newlib/libc/configure.ac
@@ -56,7 +56,7 @@ _LT_DECL_SED
 _LT_PROG_ECHO_BACKSLASH
 if test "${use_libtool}" = "yes"; then
 AC_LIBTOOL_WIN32_DLL
-AM_PROG_LIBTOOL
+LT_INIT
 fi
 
 AC_CONFIG_SUBDIRS(machine sys)
diff --git a/newlib/libc/machine/configure.ac b/newlib/libc/machine/configure.ac
index a1b70b024..7d3b953b2 100644
--- a/newlib/libc/machine/configure.ac
+++ b/newlib/libc/machine/configure.ac
@@ -11,13 +11,13 @@ NEWLIB_CONFIGURE(../..)
 
 dnl We have to add the following lines because automake detects the
 dnl references to libtool libraries from aclocal and tries to verify that
-dnl AM_PROG_LIBTOOL is being used.  This must be added after
-dnl the call to NEWLIB_CONFIGURE.
+dnl LT_INIT is being used.  This must be added after dnl the call to
+dnl NEWLIB_CONFIGURE.
 _LT_DECL_SED
 _LT_PROG_ECHO_BACKSLASH
 if test "${use_libtool}" = "yes"; then
 AC_LIBTOOL_WIN32_DLL
-AM_PROG_LIBTOOL
+LT_INIT
 fi
 
 if test -n "${machine_dir}"; then
diff --git a/newlib/libc/machine/i386/configure.ac b/newlib/libc/machine/i386/configure.ac
index 139d84c92..8ef174797 100644
--- a/newlib/libc/machine/i386/configure.ac
+++ b/newlib/libc/machine/i386/configure.ac
@@ -11,13 +11,13 @@ NEWLIB_CONFIGURE(../../..)
 
 dnl We have to add the following lines because automake detects the
 dnl references to libtool libraries from aclocal and tries to verify that
-dnl AM_PROG_LIBTOOL is being used.  This code must occur after
-dnl NEWLIB_CONFIGURE. 
+dnl LT_INIT is being used.  This must be added after dnl the call to
+dnl NEWLIB_CONFIGURE.
 _LT_DECL_SED
 _LT_PROG_ECHO_BACKSLASH
 if test "${use_libtool}" = "yes"; then
 AC_LIBTOOL_WIN32_DLL
-AM_PROG_LIBTOOL
+LT_INIT
 fi
 
 AM_CONDITIONAL(MACH_ADD_SETJMP, test "x$mach_add_setjmp" = 'xtrue')
diff --git a/newlib/libc/sys/configure.ac b/newlib/libc/sys/configure.ac
index 3d803f778..0e190c9c8 100644
--- a/newlib/libc/sys/configure.ac
+++ b/newlib/libc/sys/configure.ac
@@ -16,7 +16,7 @@ _LT_DECL_SED
 _LT_PROG_ECHO_BACKSLASH
 if test "${use_libtool}" = "yes"; then
 AC_LIBTOOL_WIN32_DLL
-AM_PROG_LIBTOOL
+LT_INIT
 fi
 
 if test -n "${sys_dir}"; then
diff --git a/newlib/libc/sys/linux/configure.ac b/newlib/libc/sys/linux/configure.ac
index ccfa7a048..eb6c345c2 100644
--- a/newlib/libc/sys/linux/configure.ac
+++ b/newlib/libc/sys/linux/configure.ac
@@ -17,7 +17,7 @@ _LT_PROG_ECHO_BACKSLASH
 AC_PROG_AWK
 if test "${use_libtool}" = "yes"; then
 AC_LIBTOOL_WIN32_DLL
-AM_PROG_LIBTOOL
+LT_INIT
 fi
 
 AC_CONFIG_SUBDIRS(machine)
diff --git a/newlib/libc/sys/linux/linuxthreads/configure.ac b/newlib/libc/sys/linux/linuxthreads/configure.ac
index 98ee10cfa..188491560 100644
--- a/newlib/libc/sys/linux/linuxthreads/configure.ac
+++ b/newlib/libc/sys/linux/linuxthreads/configure.ac
@@ -17,7 +17,7 @@ _LT_PROG_ECHO_BACKSLASH
 AC_PROG_AWK
 if test "${use_libtool}" = "yes"; then
 AC_LIBTOOL_WIN32_DLL
-AM_PROG_LIBTOOL
+LT_INIT
 fi
 
 if test -n "${machine_dir}"; then
diff --git a/newlib/libc/sys/linux/linuxthreads/machine/configure.ac b/newlib/libc/sys/linux/linuxthreads/machine/configure.ac
index a635021f5..00258d6dd 100644
--- a/newlib/libc/sys/linux/linuxthreads/machine/configure.ac
+++ b/newlib/libc/sys/linux/linuxthreads/machine/configure.ac
@@ -16,7 +16,7 @@ _LT_DECL_SED
 _LT_PROG_ECHO_BACKSLASH
 if test "${use_libtool}" = "yes"; then
 AC_LIBTOOL_WIN32_DLL
-AM_PROG_LIBTOOL
+LT_INIT
 fi
 
 if test -n "${machine_dir}"; then
diff --git a/newlib/libc/sys/linux/linuxthreads/machine/i386/configure.ac b/newlib/libc/sys/linux/linuxthreads/machine/i386/configure.ac
index aca13b717..2b6ed54df 100644
--- a/newlib/libc/sys/linux/linuxthreads/machine/i386/configure.ac
+++ b/newlib/libc/sys/linux/linuxthreads/machine/i386/configure.ac
@@ -17,7 +17,7 @@ _LT_PROG_ECHO_BACKSLASH
 AC_PROG_AWK
 if test "${use_libtool}" = "yes"; then
 AC_LIBTOOL_WIN32_DLL
-AM_PROG_LIBTOOL
+LT_INIT
 fi
 
 AC_CONFIG_FILES([Makefile])
diff --git a/newlib/libc/sys/linux/machine/configure.ac b/newlib/libc/sys/linux/machine/configure.ac
index e9f3f9c2e..04ccb9f93 100644
--- a/newlib/libc/sys/linux/machine/configure.ac
+++ b/newlib/libc/sys/linux/machine/configure.ac
@@ -16,7 +16,7 @@ _LT_DECL_SED
 _LT_PROG_ECHO_BACKSLASH
 if test "${use_libtool}" = "yes"; then
 AC_LIBTOOL_WIN32_DLL
-AM_PROG_LIBTOOL
+LT_INIT
 fi
 
 if test -n "${machine_dir}"; then
diff --git a/newlib/libc/sys/linux/machine/i386/configure.ac b/newlib/libc/sys/linux/machine/i386/configure.ac
index 93cf839fe..ee4b7485f 100644
--- a/newlib/libc/sys/linux/machine/i386/configure.ac
+++ b/newlib/libc/sys/linux/machine/i386/configure.ac
@@ -17,7 +17,7 @@ _LT_PROG_ECHO_BACKSLASH
 AC_PROG_AWK
 if test "${use_libtool}" = "yes"; then
 AC_LIBTOOL_WIN32_DLL
-AM_PROG_LIBTOOL
+LT_INIT
 fi
 
 AC_CONFIG_FILES([Makefile])
diff --git a/newlib/libm/configure.ac b/newlib/libm/configure.ac
index c1b4dbb38..25ca4c7e6 100644
--- a/newlib/libm/configure.ac
+++ b/newlib/libm/configure.ac
@@ -45,7 +45,7 @@ _LT_DECL_SED
 _LT_PROG_ECHO_BACKSLASH
 if test "${use_libtool}" = "yes"; then
 AC_LIBTOOL_WIN32_DLL
-AM_PROG_LIBTOOL
+LT_INIT
 fi
 
 AC_CONFIG_SUBDIRS(machine)
diff --git a/newlib/libm/machine/configure.ac b/newlib/libm/machine/configure.ac
index c0be11512..1060e8cb0 100644
--- a/newlib/libm/machine/configure.ac
+++ b/newlib/libm/machine/configure.ac
@@ -11,13 +11,13 @@ NEWLIB_CONFIGURE(../..)
 
 dnl We have to add the following lines because automake detects the
 dnl references to libtool libraries from aclocal and tries to verify that
-dnl AM_PROG_LIBTOOL is being used.  This must be added after
-dnl the call to NEWLIB_CONFIGURE.
+dnl LT_INIT is being used.  This must be added after dnl the call to
+dnl NEWLIB_CONFIGURE.
 _LT_DECL_SED
 _LT_PROG_ECHO_BACKSLASH
 if test "${use_libtool}" = "yes"; then
 AC_LIBTOOL_WIN32_DLL
-AM_PROG_LIBTOOL
+LT_INIT
 fi
 
 machlib=
diff --git a/newlib/libm/machine/i386/configure.ac b/newlib/libm/machine/i386/configure.ac
index fb899a458..6b43f8096 100644
--- a/newlib/libm/machine/i386/configure.ac
+++ b/newlib/libm/machine/i386/configure.ac
@@ -11,13 +11,13 @@ NEWLIB_CONFIGURE(../../..)
 
 dnl We have to add the following lines because automake detects the
 dnl references to libtool libraries from aclocal and tries to verify that
-dnl AM_PROG_LIBTOOL is being used.  This code must occur after
-dnl NEWLIB_CONFIGURE. 
+dnl LT_INIT is being used.  This must be added after dnl the call to
+dnl NEWLIB_CONFIGURE.
 _LT_DECL_SED
 _LT_PROG_ECHO_BACKSLASH
 if test "${use_libtool}" = "yes"; then
 AC_LIBTOOL_WIN32_DLL
-AM_PROG_LIBTOOL
+LT_INIT
 fi
 
 AC_CONFIG_FILES([Makefile])
diff --git a/newlib/libm/machine/x86_64/configure.ac b/newlib/libm/machine/x86_64/configure.ac
index 10dce1873..f5885fddd 100644
--- a/newlib/libm/machine/x86_64/configure.ac
+++ b/newlib/libm/machine/x86_64/configure.ac
@@ -11,13 +11,13 @@ NEWLIB_CONFIGURE(../../..)
 
 dnl We have to add the following lines because automake detects the
 dnl references to libtool libraries from aclocal and tries to verify that
-dnl AM_PROG_LIBTOOL is being used.  This code must occur after
-dnl NEWLIB_CONFIGURE. 
+dnl LT_INIT is being used.  This must be added after dnl the call to
+dnl NEWLIB_CONFIGURE.
 _LT_DECL_SED
 _LT_PROG_ECHO_BACKSLASH
 if test "${use_libtool}" = "yes"; then
 AC_LIBTOOL_WIN32_DLL
-AM_PROG_LIBTOOL
+LT_INIT
 fi
 
 AC_CONFIG_FILES([Makefile])