@@ -1799,7 +1799,16 @@ filter_cflags=echo

 filter_cppflags=echo

 filter_asflags=echo

-if   $cc -v 2>&1 | grep -qi ^gcc; then

+if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then

+    cc_type=llvm_gcc

+    cc_version=__VERSION__

+    gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')

+    cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"

+    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'

+    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'

+    speed_cflags='-O3'

+    size_cflags='-Os'

+elif $cc -v 2>&1 | grep -qi ^gcc; then

     cc_type=gcc

     cc_version=__VERSION__

     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')

@@ -1969,7 +1978,7 @@ add_asflags $extra_cflags

 if test -n "$sysroot"; then

     case "$cc_type" in

-        gcc)

+        gcc|llvm_gcc)

             add_cppflags --sysroot="$sysroot"

             add_ldflags --sysroot="$sysroot"

         ;;

@@ -1988,7 +1997,7 @@ if test "$cpu" = host; then

     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."

     case "$cc_type" in

-        gcc)

+        gcc|llvm_gcc)

             check_native(){

                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return

                 sed -n "/$1=/{

@@ -2876,6 +2885,8 @@ elif enabled gcc; then

     check_cflags -fno-tree-vectorize

     check_cflags -Werror=implicit-function-declaration

     check_cflags -Werror=missing-prototypes

+elif enabled llvm_gcc; then

+    check_cflags -mllvm -stack-alignment=16

 elif enabled clang; then

     check_cflags -mllvm -stack-alignment=16

     check_cflags -Qunused-arguments