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local m = {}
m._VERSION = "1.2.0-dev"
m.additional_pc_path = nil
m.static_link_libs = false
local function os_capture(cmd)
return io.popen(cmd, 'r'):read('*a'):gsub("\n", " ")
end
local function parse_pkg_config_includes(lib, alternative_cmd, alternative_flags)
local result
if not alternative_cmd then
local pc_path = m.additional_pc_path and "PKG_CONFIG_PATH="..m.additional_pc_path or ""
result = os_capture(pc_path.." pkg-config --cflags "..lib)
else
if not alternative_flags then
result = os_capture(alternative_cmd.." --cflags")
else
result = os_capture(alternative_cmd.." "..alternative_flags)
end
end
-- Small trick: delete the space after -include so that we can detect
-- which files have to be force-included without difficulty.
result = result:gsub("%-include +(%g+)", "-include%1")
result = result:gsub("%-isystem +(%g+)", "-isystem%1")
local dirs = {}
local files = {}
local options = {}
for w in string.gmatch(result, "[^' ']+") do
if string.sub(w,1,2) == "-I" then
table.insert(dirs, string.sub(w,3))
elseif string.sub(w,1,8) == "-isystem" then
table.insert(dirs, string.sub(w,9))
elseif string.sub(w,1,8) == "-include" then
table.insert(files, string.sub(w,9))
else
table.insert(options, w)
end
end
return dirs, files, options
end
function m.add_includes(lib, alternative_cmd, alternative_flags)
local dirs, files, options = parse_pkg_config_includes(lib, alternative_cmd, alternative_flags)
-- As of premake5-beta2, `sysincludedirs` has been deprecated in favour of
-- `externalincludedirs`, and continuing to use it causes warnings to be emitted.
-- We use `externalincludedirs` when available to prevent the warnings, falling back
-- to `sysincludedirs` when not to prevent breakage of the `--with-system-premake5`
-- build argument.
if externalincludedirs then
externalincludedirs(dirs)
else
sysincludedirs(dirs)
end
forceincludes(files)
buildoptions(options)
end
function m.add_includes_after(lib, alternative_cmd, alternative_flags)
-- Support for includedirsafter was added after the 5.0.0-beta2 release.
-- Fall back if unavailable to support `--with-system-premake5`
if includedirsafter then
local dirs, files, options = parse_pkg_config_includes(lib, alternative_cmd, alternative_flags)
includedirsafter(dirs)
forceincludes(files)
buildoptions(options)
else
m.add_includes(lib, alternative_cmd, alternative_flags)
end
end
function m.add_links(lib, alternative_cmd, alternative_flags)
local result
if not alternative_cmd then
local pc_path = m.additional_pc_path and "PKG_CONFIG_PATH="..m.additional_pc_path or ""
local static = m.static_link_libs and " --static " or ""
result = os_capture(pc_path.." pkg-config --libs "..static..lib)
else
if not alternative_flags then
result = os_capture(alternative_cmd.." --libs")
else
result = os_capture(alternative_cmd.." "..alternative_flags)
end
end
-- On OSX, wx-config outputs "-framework foo" instead of "-Wl,-framework,foo"
-- which doesn't fare well with the splitting into libs, libdirs and options
-- we perform afterwards.
result = result:gsub("%-framework +(%g+)", "-Wl,-framework,%1")
local libs = {}
local dirs = {}
local options = {}
for w in string.gmatch(result, "[^' ']+") do
if string.sub(w,1,2) == "-l" then
table.insert(libs, string.sub(w,3))
elseif string.sub(w,1,2) == "-L" then
table.insert(dirs, string.sub(w,3))
else
table.insert(options, w)
end
end
links(libs)
libdirs(dirs)
linkoptions(options)
end
return m
|
