add bc (#745)

* Create xmake.lua

* Update xmake.lua

* Update xmake.lua

packages/b/bc/xmake.lua

@@ -0,0 +1,29 @@
+package("bc")
+
+    set_kind("binary")
+    set_homepage("https://www.gnu.org/software/bc/")
+    set_description("Arbitrary precision numeric processing language")
+    set_license("GPL-3.0-or-later")
+
+    set_urls("https://ftp.gnu.org/gnu/bc/bc-$(version).tar.gz",
+             "https://ftpmirror.gnu.org/bc/bc-$(version).tar.gz")
+    add_versions("1.07.1", "62adfca89b0a1c0164c2cdca59ca210c1d44c3ffc46daf9931cf4942664cb02a")
+
+    add_deps("flex", "bison", "ed", "texinfo")
+
+    on_install("linux", "macosx", function (package)
+        local configs = {
+            "--disable-dependency-tracking",
+            "--disable-install-warnings",
+            "--disable-debug",
+            "--infodir=" .. package:installdir("info"),
+            "--mandir=" .. package:installdir("man")}
+        if package:is_plat("macosx") then
+            table.insert(configs, "--with-libedit")
+        end
+        import("package.tools.autoconf").install(package, configs)
+    end)
+
+    on_test(function (package)
+        os.exec("bc --version")
+    end)