build: Normalise amd64 CC_MACHINE to x86_64
diff --git a/toolchain-detect/configure.ac b/toolchain-detect/configure.ac
index bf7f8212..84f1a25f 100644
--- a/toolchain-detect/configure.ac
+++ b/toolchain-detect/configure.ac
@@ -9,6 +9,7 @@ if test -f "$BUILDDIR/$ARCHITECTURE-toolchain.mk"; then
fi
AC_PROG_GREP
+AC_PROG_SED
ENFORCE_TOOLCHAIN=no
if test "x$TOOLCHAIN" = "x"; then
@@ -70,9 +71,13 @@ if ! $LIMINE_CC -dumpmachine >/dev/null 2>&1; then
CC_ERROR_MSG
fi
-CC_MACHINE="$($LIMINE_CC -dumpmachine | dd bs=${#ARCHITECTURE} count=1 2>/dev/null)"
+CC_MACHINE="$($LIMINE_CC -dumpmachine | $SED 's/-.*//g')"
-if test "x$CC_MACHINE" = "xx86_"; then
+if test "x$CC_MACHINE" = "xamd64"; then
+ CC_MACHINE=x86_64
+fi
+
+if test "x$CC_MACHINE" = "xx86_64"; then
case "$ARCHITECTURE" in
i?86)
CC_MACHINE="$ARCHITECTURE"
