provide Environment construction option to use stored configuration settings - close #78

build_tests/configure/check_cfg_use.rb

@@ -0,0 +1,15 @@
+configure do
+  check_cfg package: "mypackage", use: "myp"
+end
+
+build do
+  Environment.new(echo: :command) do |env|
+    env.Copy("myconfigtest1.c", "simple.c")
+    env.Program("myconfigtest1.exe", "myconfigtest1.c")
+  end
+
+  Environment.new(echo: :command, use: "myp") do |env|
+    env.Copy("myconfigtest2.c", "simple.c")
+    env.Program("myconfigtest2.exe", "myconfigtest2.c")
+  end
+end

build_tests/configure/check_lib_use.rb

@@ -0,0 +1,15 @@
+configure do
+  check_lib "m", use: :m
+end
+
+build do
+  Environment.new(echo: :command) do |env|
+    env.Copy("test1.c", "simple.c")
+    env.Program("test2.exe", "test1.c")
+  end
+
+  Environment.new(echo: :command, use: %w[m]) do |env|
+    env.Copy("test2.c", "simple.c")
+    env.Program("test2.exe", "test2.c")
+  end
+end