diff --git a/distrib/configure.ac.in b/distrib/configure.ac.in
index 8a2016c1c8fa4304f065e4906bdc0543d0d95f25..ee096ce08568755c55021343b58ad60ed39a2cc2 100644
--- a/distrib/configure.ac.in
+++ b/distrib/configure.ac.in
@@ -206,6 +206,18 @@ dnl Identify C++ standard library flavour and location
 FP_FIND_CXX_STD_LIB
 AC_CONFIG_FILES([mk/system-cxx-std-lib-1.0.conf])
 
+dnl ** Which otool to use on macOS
+dnl --------------------------------------------------------------
+AC_CHECK_TARGET_TOOL([OTOOL], [otool])
+OtoolCmd="$OTOOL"
+AC_SUBST(OtoolCmd)
+
+dnl ** Which install_name_tool to use on macOS
+dnl --------------------------------------------------------------
+AC_CHECK_TARGET_TOOL([INSTALL_NAME_TOOL], [install_name_tool])
+InstallNameToolCmd="$INSTALL_NAME_TOOL"
+AC_SUBST(InstallNameToolCmd)
+
 # Check that we have the same emsdk version as the one we were built with.
 ConfiguredEmsdkVersion=@ConfiguredEmsdkVersion@
 EMSDK_VERSION("", "", ${ConfiguredEmsdkVersion})