if [ -z "$r16" ]; then

export r16="$(pwd)/usr/$__prefix/sysroot/usr"
export DESTDIR="$r16"
export INCLUDE="-I$r16/include"
export LIBS="-L$r16/lib"
export CFLAGS="$INCLUDE"
export CPPFLAGS="$INCLUDE"
export CXXFLAGS="$INCLUDE"
export LDFLAGS="$LIBS"
export PKG_CONFIG_PATH="$r16/lib/pkgconfig"

if true; then

#export CROSS_COMPILE="$__prefix-"
export CC="$__prefix-gcc"
export CXX="$__prefix-g++"
export AR="$__prefix-gcc-ar"
export RANLIB="$__prefix-gcc-ranlib"

export ac_cv_func_malloc_nonnull=yes
export ac_cv_func_malloc_0_nonnull=yes
export ac_cv_func_realloc_nonnull=yes
export ac_cv_func_realloc_0_nonnull=yes
export ac_cv_func_lstat_nonnull=yes
export ac_cv_func_lstat_0_nonnull=yes

export CFLAGS="-Ofast \
  -flto=8 -fwhole-program -fuse-linker-plugin -fipa-pta \
  -fdata-sections -ffunction-sections -Wl,--gc-sections \
  -fno-stack-protector -fno-ident -fomit-frame-pointer \
  -falign-functions=1 -falign-jumps=1 -falign-loops=1 \
  -fno-unwind-tables -fno-asynchronous-unwind-tables \
  -fmerge-all-constants -fno-math-errno \
  -marm -march=armv7ve -mtune=cortex-a7 -mfpu=neon-vfpv4 -mfloat-abi=hard"

export CPPFLAGS="$CFLAGS"
export CXXFLAGS="$CFLAGS"

fi

echo "$r16"

fi