diff --git a/build/moz.configure/flags.configure b/build/moz.configure/flags.configure
index b67c2ab3c3a5..86f6befeb042 100644
--- a/build/moz.configure/flags.configure
+++ b/build/moz.configure/flags.configure
@@ -589,6 +589,20 @@ def host_cflags(base_cxxflags, compilation_flags, host_common_flags):
     return flags
 
 
+@depends("HOST_LDFLAGS", linker_flags, host_linker_ldflags, host, host_c_compiler)
+@imports(_from="mozbuild.shellutil", _import="split")
+def host_ldflags(env_ldflags, linker_flags, host_linker_ldflags, host, compiler):
+    flags = split(env_ldflags[0])
+    flags += host_linker_ldflags
+    if host.kernel == "WINNT" and compiler.type == "clang-cl":
+        if host.cpu == "x86":
+            flags += ["-MACHINE:X86"]
+        elif host.cpu == "x86_64":
+            flags += ["-MACHINE:X64"]
+    flags += linker_flags.host_ldflags
+    return flags
+
+
 # Please keep these last in this file.
 add_old_configure_assignment("_COMPILATION_ASFLAGS", asm_flags.asflags)
 add_old_configure_assignment("_COMPILATION_HOST_ASFLAGS", asm_flags.host_asflags)
@@ -596,11 +610,11 @@ add_old_configure_assignment("_COMPILATION_LDFLAGS", linker_flags.ldflags)
 add_old_configure_assignment(
     "_COMPILATION_OPTIMIZE_LDFLAGS", linker_optimize_flags.ldflags
 )
-add_old_configure_assignment("_COMPILATION_HOST_LDFLAGS", linker_flags.host_ldflags)
 
 add_old_configure_assignment("_COMPILATION_CFLAGS", compilation_flags.cflags)
 add_old_configure_assignment("_COMPILATION_CXXFLAGS", compilation_flags.cxxflags)
 
 set_config("HOST_CFLAGS", host_cflags)
 set_config("HOST_CXXFLAGS", host_cflags)
+set_config("HOST_LDFLAGS", host_ldflags)
 set_config("DSO_LDOPTS", dso_flags.ldopts)
diff --git a/build/moz.configure/toolchain.configure b/build/moz.configure/toolchain.configure
index b62f8294a36a..9d2cce2091e0 100644
--- a/build/moz.configure/toolchain.configure
+++ b/build/moz.configure/toolchain.configure
@@ -22,6 +22,14 @@ option(
 )
 
 
+option(
+    env="HOST_LDFLAGS",
+    help="Extra flags for linking host object files.",
+    nargs=1,
+    default="",
+)
+
+
 # Code optimization
 # ==============================================================
 
@@ -2103,7 +2111,6 @@ linker_ldflags = linker_ldflags_tmpl(target)
 add_old_configure_assignment("LINKER_LDFLAGS", linker_ldflags)
 
 host_linker_ldflags = linker_ldflags_tmpl(host)
-add_old_configure_assignment("HOST_LINKER_LDFLAGS", host_linker_ldflags)
 
 
 # There's a wrinkle with MinGW: linker configuration is not enabled, so
diff --git a/build/mozconfig.no-compile b/build/mozconfig.no-compile
index 5efb8e5db112..0b47d871f4b9 100644
--- a/build/mozconfig.no-compile
+++ b/build/mozconfig.no-compile
@@ -13,6 +13,7 @@ unset HOST_CC
 unset HOST_CXX
 unset HOST_CFLAGS
 unset HOST_CXXFLAGS
+unset HOST_LDFLAGS
 unset LINKER
 unset RUSTFLAGS
 unset TOOLCHAIN_PREFIX
diff --git a/js/src/old-configure.in b/js/src/old-configure.in
index 5445338071d9..8d1240a870b5 100644
--- a/js/src/old-configure.in
+++ b/js/src/old-configure.in
@@ -22,7 +22,6 @@ CFLAGS="${CFLAGS=}"
 CPPFLAGS="${CPPFLAGS=}"
 CXXFLAGS="${CXXFLAGS=}"
 LDFLAGS="${LDFLAGS=}"
-HOST_LDFLAGS="${HOST_LDFLAGS=}"
 
 dnl Propagate extra android flags
 dnl =============================
@@ -41,7 +40,6 @@ dnl ========================================================
 W32API_VERSION=3.14
 
 LDFLAGS="$LDFLAGS $LINKER_LDFLAGS $PACK_REL_RELOC_FLAGS"
-HOST_LDFLAGS="$HOST_LDFLAGS $HOST_LINKER_LDFLAGS"
 
 if test -z "$JS_STANDALONE"; then
   autoconfmk=autoconf-js.mk
@@ -159,19 +157,6 @@ dnl ========================================================
 case "$host" in
 *mingw*)
     HOST_BIN_SUFFIX=.exe
-
-    case "${host_cpu}" in
-    i*86)
-        if test "$HOST_CC_TYPE" = clang-cl; then
-            HOST_LDFLAGS="$HOST_LDFLAGS -MACHINE:X86"
-        fi
-        ;;
-    x86_64)
-        if test "$HOST_CC_TYPE" = clang-cl; then
-            HOST_LDFLAGS="$HOST_LDFLAGS -MACHINE:X64"
-        fi
-        ;;
-    esac
     ;;
 esac
 
@@ -384,10 +369,6 @@ LDFLAGS=`echo \
     $LDFLAGS \
     $_COMPILATION_LDFLAGS`
 
-HOST_LDFLAGS=`echo \
-    $HOST_LDFLAGS \
-    $_COMPILATION_HOST_LDFLAGS`
-
 OS_CFLAGS="$CFLAGS"
 OS_CXXFLAGS="$CXXFLAGS"
 OS_CPPFLAGS="$CPPFLAGS"
@@ -400,7 +381,6 @@ AC_SUBST_LIST(OS_LDFLAGS)
 AC_SUBST(HOST_CC)
 AC_SUBST(HOST_CXX)
 AC_SUBST_LIST(HOST_CPPFLAGS)
-AC_SUBST(HOST_LDFLAGS)
 AC_SUBST(HOST_BIN_SUFFIX)
 
 AC_SUBST(BIN_SUFFIX)
diff --git a/old-configure.in b/old-configure.in
index 1504da35570d..a72eaf9fcf5e 100644
--- a/old-configure.in
+++ b/old-configure.in
@@ -22,7 +22,6 @@ CFLAGS="${CFLAGS=}"
 CPPFLAGS="${CPPFLAGS=}"
 CXXFLAGS="${CXXFLAGS=}"
 LDFLAGS="${LDFLAGS=}"
-HOST_LDFLAGS="${HOST_LDFLAGS=}"
 
 
 dnl Propagate extra android flags
@@ -43,7 +42,6 @@ W32API_VERSION=3.14
 
 
 LDFLAGS="$LDFLAGS $LINKER_LDFLAGS $PACK_REL_RELOC_FLAGS"
-HOST_LDFLAGS="$HOST_LDFLAGS $HOST_LINKER_LDFLAGS"
 
 dnl ========================================================
 dnl Checks for compilers.
@@ -163,19 +161,6 @@ dnl ========================================================
 case "$host" in
 *mingw*)
     HOST_BIN_SUFFIX=.exe
-
-    case "${host_cpu}" in
-    i*86)
-        if test "$HOST_CC_TYPE" = clang-cl; then
-            HOST_LDFLAGS="$HOST_LDFLAGS -MACHINE:X86"
-        fi
-        ;;
-    x86_64)
-        if test "$HOST_CC_TYPE" = clang-cl; then
-            HOST_LDFLAGS="$HOST_LDFLAGS -MACHINE:X64"
-        fi
-        ;;
-    esac
     ;;
 esac
 
@@ -537,10 +522,6 @@ LDFLAGS=`echo \
     $LDFLAGS \
     $_COMPILATION_LDFLAGS`
 
-HOST_LDFLAGS=`echo \
-    $HOST_LDFLAGS \
-    $_COMPILATION_HOST_LDFLAGS`
-
 OS_CFLAGS="$CFLAGS"
 OS_CXXFLAGS="$CXXFLAGS"
 OS_CPPFLAGS="$CPPFLAGS"
@@ -553,7 +534,6 @@ AC_SUBST_LIST(OS_LDFLAGS)
 AC_SUBST(HOST_CC)
 AC_SUBST(HOST_CXX)
 AC_SUBST_LIST(HOST_CPPFLAGS)
-AC_SUBST(HOST_LDFLAGS)
 AC_SUBST(HOST_BIN_SUFFIX)
 
 AC_SUBST(BIN_SUFFIX)