add package giflib and libwebp (#136)

* add package giflib

* add package libwebp

* add require cgetopt

* make autoconf configs consistent

packages/g/giflib/xmake.lua

@@ -0,0 +1,63 @@
+package("giflib")
+
+    set_homepage("https://sourceforge.net/projects/giflib/")
+    set_description("A library for reading and writing gif images.")
+    set_license("MIT")
+
+    add_urls("https://jaist.dl.sourceforge.net/project/giflib/giflib-$(version).tar.gz")
+    add_versions("5.2.1", "31da5562f44c5f15d63340a09a4fd62b48c45620cd302f77a6d9acf0077879bd")
+
+    add_configs("utils", {description = "Build utility binaries.", default = true, type = "boolean"})
+
+    if is_plat("windows") then
+        add_deps("cgetopt")
+    end
+
+    on_install("linux", "macosx", "windows", "mingw", "android", "iphoneos", function (package)
+        local lib_sources = {"dgif_lib.c", "egif_lib.c", "gifalloc.c", "gif_err.c", "gif_font.c", "gif_hash.c", "openbsd-reallocarray.c"}
+        local kind = "static"
+        if package:config("shared") then
+            if package:is_plat("windows") then
+                cprint("${yellow}No support for dll on windows!${clear}")
+            else
+                kind = "shared"
+            end
+        end
+        if package:is_plat("windows") then
+            io.gsub("gif_hash.h", "\n#include <unistd.h>\n", [[
+                #ifndef _MSC_VER
+                #include <unistd.h>
+                #endif
+            ]])
+            io.gsub("gif_font.c", "\n#include \"gif_lib.h\"\n", "\n#include \"gif_lib.h\"\n#define strtok_r strtok_s\n")
+        end
+        local xmake_lua = string.format([[
+            add_rules("mode.debug", "mode.release")
+            if is_plat("windows") then
+                add_requires("cgetopt")
+            end
+            target("gif")
+                set_kind("%s")
+                add_files("%s")
+                add_headerfiles("gif_lib.h")
+        ]], kind, table.concat(lib_sources, "\", \""))
+        if package:config("utils") then
+            local util_table = {"gif2rgb", "gifbuild", "gifclrmp", "giffix", "giftext", "giftool"}
+            for _, util in ipairs(util_table) do
+                xmake_lua = xmake_lua .. string.format([[
+                    target("%s")
+                        set_kind("binary")
+                        if is_plat("windows") then
+                            add_packages("cgetopt")
+                        end
+                        add_files("%s.c", "getarg.c", "qprintf.c", "quantize.c", "%s")
+                ]], util, util, table.concat(lib_sources, "\", \""))
+            end
+        end
+        io.writefile("xmake.lua", xmake_lua)
+        import("package.tools.xmake").install(package)
+    end)
+
+    on_test(function (package)
+        assert(package:has_cfuncs("GifMakeMapObject", {includes = "gif_lib.h"}))
+    end)

packages/l/libwebp/xmake.lua

@@ -0,0 +1,42 @@
+package("libwebp")
+
+    set_homepage("https://chromium.googlesource.com/webm/libwebp/")
+    set_description("Library to encode and decode images in WebP format.")
+    set_license("BSD-3-Clause")
+
+    local commits = {["1.1.0"] = "d7844e9762b61c9638c263657bd49e1690184832"}
+    add_urls("https://github.com/webmproject/libwebp/archive/v$(version).tar.gz", {alias = "github"})
+    add_urls("https://chromium.googlesource.com/webm/libwebp/+archive/$(version).tar.gz", {alias = "google", version = function (version) return commits[version] end})
+    add_versions("github:1.1.0", "424faab60a14cb92c2a062733b6977b4cc1e875a6398887c5911b3a1a6c56c51")
+    add_versions("google:1.1.0", "538fa4368f303251f7a672db5bf9970089493fab58c0d457e31a89703d9a786b")
+
+    add_deps("libpng", "libjpeg", "libtiff", "giflib")
+    if is_plat("linux") then
+        add_syslinks("pthread")
+    elseif is_plat("macosx") then
+        add_deps("automake")
+    end
+
+    on_install("linux", "macosx", function (package)
+        local configs = {}
+        table.insert(configs, "--enable-shared=" .. (package:config("shared") and "yes" or "no"))
+        table.insert(configs, "--enable-static=" .. (package:config("shared") and "no" or "yes"))
+        import("package.tools.autoconf").install(package, configs)
+    end)
+
+    on_install("windows", function (package)
+        local configs = {"-f", "Makefile.vc"}
+        local cfg = (package:debug() and "debug" or "release") .. "-" .. (package:config("shared") and "dynamic" or "static")
+        local arch = package:arch()
+        table.insert(configs, "CFG=" .. cfg)
+        table.insert(configs, "RTLIBCFG=" .. (package:config("vs_runtime"):startswith("MT") and "static" or "dynamic"))
+        table.insert(configs, "ARCH=" .. arch)
+        import("package.tools.nmake").build(package, configs)
+        local base = path.join("..", "obj", cfg, arch)
+        os.cp(path.join(base, "lib"), package:installdir())
+        os.cp(path.join("src", "webp"), package:installdir("include"))
+    end)
+
+    on_test(function (package)
+        assert(package:has_cfuncs("WebPGetEncoderVersion", {includes = "webp/encode.h"}))
+    end)