# toolchain configuration, here gcc
# slib = Shared LIBrary
if test "${cco_slib-unset}" = unset; then
cco_slib='gcc -fvisibility=hidden -static-libgcc -pipe -fPIC -std=c99 -c'
fi

# llvm is now c++ crap from 2014
if test "${cxxo_slib-unset}" = unset; then
cxxo_slib='g++ -fvisibility=hidden -static-libgcc -static-libstdc++ -std=c++14 -fno-rtti -pipe -fPIC -c'
fi

if test "${cflags_opt-unset}" = unset; then
cflags_opt='-O2 -Wno-stringop-overflow'
fi

if test "${cxxflags_opt-unset}" = unset; then
cxxflags_opt='-O2 -Wno-stringop-overflow'
fi

if test "${ar_rcs-unset}" = unset; then
ar='ar rcs'
fi

# gcc built-in
gcc_builtins_cppflags="\
-DHAVE___BUILTIN_BSWAP32=1 \
-DHAVE___BUILTIN_BSWAP64=1 \
-DHAVE___BUILTIN_CLZ=1 \
-DHAVE___BUILTIN_CLZLL=1 \
-DHAVE___BUILTIN_CTZ=1 \
-DHAVE___BUILTIN_EXPECT=1 \
-DHAVE___BUILTIN_FFS=1 \
-DHAVE___BUILTIN_FFSLL=1 \
-DHAVE___BUILTIN_POPCOUNT=1 \
-DHAVE___BUILTIN_POPCOUNTLL=1 \
-DHAVE___BUILTIN_UNREACHABLE=1 \
"

# gcc attributes
gcc_attributes_cppflags="\
-DHAVE_FUNC_ATTRIBUTE_CONST=1 \
-DHAVE_FUNC_ATTRIBUTE_FLATTEN=1 \
-DHAVE_FUNC_ATTRIBUTE_MALLOC=1 \
-DHAVE_FUNC_ATTRIBUTE_PURE=1 \
-DHAVE_FUNC_ATTRIBUTE_UNUSED=1 \
-DHAVE_FUNC_ATTRIBUTE_WARN_UNUSED_RESULT=1 \
-DHAVE_FUNC_ATTRIBUTE_WEAK=1 \
\
-DHAVE_FUNC_ATTRIBUTE_FORMAT=1 \
-DHAVE_FUNC_ATTRIBUTE_PACKED=1 \
-DHAVE_FUNC_ATTRIBUTE_RETURNS_NONNULL=1 \
-DHAVE_FUNC_ATTRIBUTE_VISIBILITY=1 \
-DHAVE_FUNC_ATTRIBUTE_ALIAS=1 \
-DHAVE_FUNC_ATTRIBUTE_NORETURN=1 \
"

#TODO: removed
#-DUSE_SSE41=1 \
#-DUSE_X86_64_ASM=1 \
# gcc misc
# asm for x86 is -DUSE_X86_ASM -DUSE_MMX_ASM -DUSE_3DNOW_ASM -DUSE_SSE_ASM
# asm for x86-64 is only USE_X86_64_ASM
# must manually defines asm ABI struct size for cross-compiling
gcc_misc_cppflags="\
-DUSE_GCC_ATOMIC_BUILTINS=1 \
"

gcc_cppflags="\
$gcc_builtins_cppflags \
$gcc_attributes_cppflags \
$gcc_misc_cppflags \
"