diff options
| -rw-r--r-- | deps/exec/rebar.config.script | 34 |
1 files changed, 26 insertions, 8 deletions
diff --git a/deps/exec/rebar.config.script b/deps/exec/rebar.config.script index 4c7fc65..e24880f 100644 --- a/deps/exec/rebar.config.script +++ b/deps/exec/rebar.config.script @@ -1,16 +1,35 @@ -Arch = erlang:system_info(system_architecture), +%% For cross building using erlang:system_info() does not work as rebar runs +%% using the build hosts Erlang runtime. +%% If CXX envrionment variable is defined we are most likely running in a cross environment. +{CXX,Target,Sysroot} = case os:getenv("CXX") of + false -> {"g++",erlang:system_info(system_architecture),""}; + Compiler -> {Compiler,string:strip(os:cmd(Compiler ++ " -dumpmachine"), right, $\n),string:strip(os:cmd(Compiler ++ " -print-sysroot"), right, $\n)} +end, + +%% Commonly on Linux, compilers report the target triplet as <arch>-<vendor>-linux, +%% however, Erlang runtime reports and expects it as <arch>-<vendor>-linux-gnu. +%% Fix by appending "-gnu". +Mach = case string:str(Target,"linux") of + 0 -> Target; + _ -> case string:words(Target,$-) of + 4 -> Target; + _ -> Target ++ "-gnu" + end + end, + Vsn = string:strip(os:cmd("git describe --always --tags --abbrev=0 | sed 's/^v//'"), right, $\n), + %% Check for Linux capability API (Install package: libcap-devel). {LinCXX, LinLD} = - case file:read_file_info("/usr/include/sys/capability.h") of + case file:read_file_info(Sysroot ++ "/usr/include/sys/capability.h") of {ok, _} -> - io:put_chars("INFO: Detected support of linux capabilities.\n"), + %io:put_chars("INFO: Detected support of linux capabilities.\n"), {" -DHAVE_CAP", " -lcap"}; _ -> {"", ""} end, -X64 = case Arch of +X64 = case Mach of "x86_64" ++ _E -> " -m64"; _ -> "" end, @@ -27,12 +46,12 @@ lists:keymerge(1, {"linux", "CXXFLAGS", "$CXXFLAGS -DHAVE_SETRESUID -DHAVE_PTRACE" ++ LinCXX}, {"linux", "LDFLAGS", "$LDFLAGS" ++ LinLD}, - {"CC", "g++"}, - {"CXX", "g++"}, + {"CC", CXX}, + {"CXX", CXX}, {"CXXFLAGS", "$CXXFLAGS -O0"} ]}, - {port_specs,[{filename:join(["priv", Arch, "exec-port"]), ["c_src/*.cpp"]}]}, + {port_specs,[{filename:join(["priv", Mach, "exec-port"]), ["c_src/*.cpp"]}]}, {edoc_opts, [{overview, "src/overview.edoc"}, {title, "The exec application"}, {includes, ["include"]}, @@ -41,4 +60,3 @@ lists:keymerge(1, {app_default, "http://www.erlang.org/doc/man"}]} ]), lists:keysort(1, CONFIG)). - |