X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fgnucompiler.cpp;h=b3f56175c034790d427cec316b12f3a7b2680773;hb=bf227e1b5e956cb8554d9e57077a02d3aa169bf2;hp=16e7ccac1d88da73a34776e288980b295f4f0747;hpb=d75cd87bdcf889148d50415366d713ed82456945;p=builder.git

diff --git a/source/gnucompiler.cpp b/source/gnucompiler.cpp
index 16e7cca..b3f5617 100644
--- a/source/gnucompiler.cpp
+++ b/source/gnucompiler.cpp
@@ -27,8 +27,9 @@ const char *cpus[] =
 
 }
 
-GnuCompiler::GnuCompiler(Builder &b, const Architecture &a, const string &t, const FS::Path &sysroot):
-	Tool(b, a, t)
+GnuCompiler::GnuCompiler(Builder &b, const Architecture &a, const string &t):
+	Tool(b, a, t),
+	version(0)
 {
 	if(tag=="CC")
 	{
@@ -50,9 +51,6 @@ GnuCompiler::GnuCompiler(Builder &b, const Architecture &a, const string &t, con
 		throw invalid_argument("GnuCompiler::GnuCompiler");
 
 	set_command((tag=="CXX" ? "g++" : "gcc"), true);
-
-	if(!sysroot.empty())
-		build_info.sysroot = sysroot;
 }
 
 Target *GnuCompiler::create_source(const Component &comp, const FS::Path &path) const
@@ -83,6 +81,9 @@ Target *GnuCompiler::create_target(const list<Target *> &sources, const string &
 
 string GnuCompiler::create_build_signature(const BuildInfo &binfo) const
 {
+	if(!executable)
+		return string();
+
 	string result = FS::basename(executable->get_path());
 	if(!architecture->get_cpu().empty())
 	{
@@ -101,11 +102,17 @@ string GnuCompiler::create_build_signature(const BuildInfo &binfo) const
 }
 
 void GnuCompiler::do_prepare()
+{
+	executable = builder.get_vfs().find_binary(command);
+	prepare_syspath();
+	prepare_version();
+}
+
+void GnuCompiler::prepare_syspath()
 {
 	bool path_found = false;
 	const FS::Path &sysroot = build_info.sysroot;
 
-	executable = builder.get_vfs().find_binary(command);
 	if(executable)
 	{
 		ExternalTask::Arguments argv;
@@ -159,6 +166,37 @@ void GnuCompiler::do_prepare()
 	}
 }
 
+void GnuCompiler::prepare_version()
+{
+	if(!executable)
+		return;
+
+	prepare_version("-dumpversion");
+	if(version>=0x70000)
+		prepare_version("-dumpfullversion");
+	builder.get_logger().log("tools", format("%s version is %d.%d.%d", FS::basename(executable->get_path()), version>>16, (version>>8)&0xFF, version&0xFF));
+}
+
+void GnuCompiler::prepare_version(const string &arg)
+{
+	ExternalTask::Arguments argv;
+	argv.push_back(executable->get_path().str());
+	argv.push_back(arg);
+
+	builder.get_logger().log("auxcommands", format("Running %s", join(argv.begin(), argv.end())));
+	try
+	{
+		string version_str = strip(ExternalTask::run_and_capture_output(argv));
+
+		vector<string> version_parts = split(version_str, '.');
+		version = 0;
+		for(unsigned i=0; (i<3 && i<version_parts.size()); ++i)
+			version |= lexical_cast<unsigned>(version_parts[i])<<(16-8*i);
+	}
+	catch(const runtime_error &)
+	{ }
+}
+
 Task *GnuCompiler::run(const Target &target) const
 {
 	const ObjectFile &object = dynamic_cast<const ObjectFile &>(target);
@@ -183,6 +221,8 @@ Task *GnuCompiler::run(const Target &target) const
 		{
 			argv.push_back("-Wextra");
 			argv.push_back("-Wundef");
+			if(version>=0x80000)
+				argv.push_back("-Wno-cast-function-type");
 		}
 		if(binfo.warning_level>=3)
 		{