eNpc/README.md

Erlang nif port compiler

windows linux mac下erlang nif或者port_driver通用编译脚本
改造自 erlang-native-compiler

Usage

default_env

1. Clone this repository
2. Run make in this directory
3. Copy eNpc to your project "c_src" dir and commit it
4. Add these (or similar) hooks to your rebar.config:

{pre_hooks, [{"", compile, "escript c_src/eNpc compile"}]}.
{post_hooks, [{"", clean, "escript c_src/eNpc clean"}]}.

After that eNpc should read your old rebar.config port_specs and port_env settings as expected (it is rebar2's port compiler after all...).

%% Supported configuration variables: %% %% * port_specs - Erlang list of tuples of the forms %% {ArchRegex, TargetFile, Sources, Options} %% {ArchRegex, TargetFile, Sources} %% {TargetFile, Sources} %% %% Note that if you want to use any of the rebar3 variables %% below you must MUST use a ${}-style to get the expansion %% to work. e.g. to expand REBAR_DEPS_DIR, do something like: %% %% {port_specs, [{"priv/nif.so", %% ["c_src/nif.c", %% "${REBAR_DEPS_DIR}/foo/bar.c"]}]}. %% %% This is a very good way to be able to use your code both %% as a top level app and a dependency. %% %% CAVEAT! Not using {} is broken for the moment. %% %% * port_env - Erlang list of key/value pairs which will control %% the environment when running the compiler and linker. %% Variables set in the surrounding system shell are taken %% into consideration when expanding port_env. Note that %% for ERL_LDFLAGS, -lerl_interface is used for only those %% Erlang/OTP versions where it exists (those prior to %% version 23.0). %% %% By default, the following variables are defined: %% CC - C compiler %% CXX - C++ compiler %% CFLAGS - C compiler %% CXXFLAGS - C++ compiler %% LDFLAGS - Link flags %% ERL_CFLAGS - default -I paths for erts and ei %% ERL_LDFLAGS - default -L and -lerl_interface -lei %% DRV_CFLAGS - flags that will be used for compiling %% DRV_LDFLAGS - flags that will be used for linking %% EXE_CFLAGS - flags that will be used for compiling %% EXE_LDFLAGS - flags that will be used for linking %% ERL_EI_LIBDIR - ei library directory %% DRV_CXX_TEMPLATE - C++ command template %% DRV_CC_TEMPLATE - C command template %% DRV_LINK_TEMPLATE - C Linker command template %% DRV_LINK_CXX_TEMPLATE - C++ Linker command template %% EXE_CXX_TEMPLATE - C++ command template %% EXE_CC_TEMPLATE - C command template %% EXE_LINK_TEMPLATE - C Linker command template %% EXE_LINK_CXX_TEMPLATE - C++ Linker command template %% %% Note that if you wish to extend (vs. replace) these variables, %% you MUST include a shell-style reference in your definition. %% e.g. to extend CFLAGS, do something like: %% %% {port_env, [{"CFLAGS", "$CFLAGS -MyOtherOptions"}]} %% %% It is also possible to specify platform specific options %% by specifying a triplet where the first string is a regex %% that is checked against Erlang's system architecture string. %% e.g. to specify a CFLAG that only applies to x86_64 on linux %% do: %% %% {port_env, [{"x86_64.*-linux", "CFLAGS", %% "$CFLAGS -X86Options"}]} %% %% Cross-arch environment variables to configure toolchain: %% GET_ARCH to set the tool chain name to use %% GET_ARCH_WORDSIZE (optional - to determine word size)" %% word size is 32 %% GET_ARCH_VSN (optional - " %% l version of CC/CXX is requested),

{port_specs, [ {"priv/jiffy.so", [ "c_src/.c", "c_src/.cc", "c_src/double-conversion/*.cc" ]} ]}.

{port_env, [ % Drop -lerl_interface {"ERL_LDFLAGS", " -L$ERL_EI_LIBDIR -lei"}, {"win32", "ERL_LDFLAGS", " /LIBPATH:$ERL_EI_LIBDIR ei.lib"},

{".*", "FLTO_FLAG", ""},

{"(linux|solaris|freebsd|netbsd|openbsd|dragonfly|darwin|gnu)", "CFLAGS", "$CFLAGS -Ic_src/ -g -Wall $FLTO_FLAG -Werror -O3"},
{"(linux|solaris|freebsd|netbsd|openbsd|dragonfly|darwin|gnu)", "CXXFLAGS", "$CXXFLAGS -Ic_src/ -g -Wall $FLTO_FLAG -Werror -O3"},

{"(linux|solaris|freebsd|netbsd|openbsd|dragonfly|darwin|gnu)", "LDFLAGS", "$LDFLAGS $FLTO_FLAG -lstdc++"},

%% OS X Leopard flags for 64-bit
{"darwin9.*-64$", "CXXFLAGS", "-m64"},
{"darwin9.*-64$", "LDFLAGS", "-arch x86_64"},

%% OS X Snow Leopard flags for 32-bit
{"darwin10.*-32$", "CXXFLAGS", "-m32"},
{"darwin10.*-32$", "LDFLAGS", "-arch i386"},

{"win32", "CXXFLAGS", "$CXXFLAGS /O2 /DNDEBUG"}

]}.