implement ConfigureOp#check_lib

build_tests/configure/check_lib_failure.rb

@@ -0,0 +1,3 @@
+configure do
+  check_lib "mfoofoo"
+end

build_tests/configure/check_lib_no_fail.rb

@@ -0,0 +1,3 @@
+configure do
+  check_lib "mfoofoo", fail: false
+end

build_tests/configure/check_lib_success.rb

@@ -0,0 +1,3 @@
+configure do
+  check_lib "m"
+end

lib/rscons/application.rb

@@ -115,6 +115,11 @@ module Rscons
             co.check_d_import(*cdi)
           end
         end
+        if cls = @script.check_libs
+          cls.each do |cl|
+            co.check_lib(*cl)
+          end
+        end
         if ces = @script.check_executables
           ces.each do |ce|
             co.check_executable(*ce)

lib/rscons/configure_op.rb

@@ -161,6 +161,27 @@ module Rscons
       common_config_checks(status, options)
     end
 
+    # Check for a library.
+    def check_lib(lib, options = {})
+      $stdout.write("Checking for library '#{lib}'... ")
+      File.open("#{@work_dir}/cfgtest.c", "wb") do |fh|
+        fh.puts <<-EOF
+          int main(int argc, char * argv[]) {
+            return 0;
+          }
+        EOF
+      end
+      vars = {
+        "LD" => "${CC}",
+        "LIBS" => [lib],
+        "_SOURCES" => "#{@work_dir}/cfgtest.c",
+        "_TARGET" => "#{@work_dir}/cfgtest.exe",
+      }
+      command = @env.build_command("${LDCMD}", vars)
+      _, _, status = log_and_test_command(command)
+      common_config_checks(status, options)
+    end
+
     # Check for an executable.
     def check_executable(executable, options = {})
       $stdout.write("Checking for executable '#{executable}'... ")

lib/rscons/script.rb

@@ -60,6 +60,12 @@ module Rscons
         @script.check_d_imports << args
       end
 
+      # Check for a library.
+      def check_lib(*args)
+        @script.check_libs ||= []
+        @script.check_libs << args
+      end
+
       # Check for an executable.
       def check_executable(*args)
         @script.check_executables ||= []
@@ -71,31 +77,35 @@ module Rscons
     #   Project name.
     attr_accessor :project_name
 
-    # @return [Array<String>]
+    # @return [Array<Array>]
     #   C compilers to check for.
     attr_accessor :check_c_compiler
 
-    # @return [Array<String>]
+    # @return [Array<Array>]
     #   C++ compilers to check for.
     attr_accessor :check_cxx_compiler
 
-    # @return [Array<String>]
+    # @return [Array<Array>]
     #   D compilers to check for.
     attr_accessor :check_d_compiler
 
-    # @return [Array<String>]
+    # @return [Array<Array>]
     #   C headers to check for.
     attr_accessor :check_c_headers
 
-    # @return [Array<String>]
+    # @return [Array<Array>]
     #   C++ headers to check for.
     attr_accessor :check_cxx_headers
 
-    # @return [Array<String>]
+    # @return [Array<Array>]
     #   D imports to check for.
     attr_accessor :check_d_imports
 
-    # @return [Array<String>]
+    # @return [Array<Array>]
+    #   Libraries to check for.
+    attr_accessor :check_libs
+
+    # @return [Array<Array>]
     #   Executables to check for.
     attr_accessor :check_executables
 

spec/build_tests_spec.rb

@@ -1699,6 +1699,32 @@ EOF
       end
     end
 
+    context "check_lib" do
+      it "succeeds when the requested library is found" do
+        test_dir "configure"
+        result = run_rscons(rsconsfile: "check_lib_success.rb", op: "configure")
+        expect(result.stderr).to eq ""
+        expect(result.status).to eq 0
+        expect(result.stdout).to match /Checking for library 'm'... found/
+      end
+
+      it "fails when the requested library is not found" do
+        test_dir "configure"
+        result = run_rscons(rsconsfile: "check_lib_failure.rb", op: "configure")
+        expect(result.stderr).to eq ""
+        expect(result.status).to_not eq 0
+        expect(result.stdout).to match /Checking for library 'mfoofoo'... not found/
+      end
+
+      it "succeeds when the requested library is not found but :fail is set to false" do
+        test_dir "configure"
+        result = run_rscons(rsconsfile: "check_lib_no_fail.rb", op: "configure")
+        expect(result.stderr).to eq ""
+        expect(result.status).to eq 0
+        expect(result.stdout).to match /Checking for library 'mfoofoo'... not found/
+      end
+    end
+
     context "check_executable" do
       it "succeeds when the requested executable is found" do
         test_dir "configure"