Add clang support.

9 files changed, 77 insertions, 18 deletions

diff --git a/Jenkinsfile b/Jenkinsfile
index b483ac3..9a99f2d 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -2,18 +2,45 @@ pipeline {
 	agent { label 'c++20' }
 
 	stages {
-		stage('Build') {
+		stage('Clean') {
 			steps {
-				echo 'Building...'
-				sh 'rm -Rf build'
+				echo 'Cleaning workspace ...'
+				sh 'rm -Rf build build-gcc build-clang'
+			}
+		}
+		stage('Build-gcc') {
+			steps {
+				echo 'Building (gcc) ...'
 				sh './bootstrap.sh'
 			}
 		}
-		stage('Test') {
+		stage('Test-gcc') {
+			steps {
+				echo 'Testing (gcc) ...'
+				sh './ctor check'
+			}
+			post {
+				always {
+					sh 'mv build build-gcc'
+				}
+			}
+		}
+		stage('Build-clang') {
+			steps {
+				echo 'Building (clang) ...'
+				sh 'CXX=clang++ ./bootstrap.sh'
+			}
+		}
+		stage('Test-clang') {
 			steps {
-				echo 'Testing...'
+				echo 'Testing (clang) ...'
 				sh './ctor check'
 			}
+			post {
+				always {
+					sh 'mv build build-clang'
+				}
+			}
 		}
 	}
 
@@ -21,7 +48,7 @@ pipeline {
 		always {
 			xunit(thresholds: [ skipped(failureThreshold: '0'),
 			                    failed(failureThreshold: '0') ],
-			      tools: [ CppUnit(pattern: 'build/test/*.xml') ])
+			      tools: [ CppUnit(pattern: 'build-*/test/*.xml') ])
 		}
 	}
-}
\ No newline at end of file
+}
diff --git a/bootstrap.sh b/bootstrap.sh
index a5c11ac..5873e83 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -1,7 +1,10 @@
 #!/bin/sh
+: ${CXX:=g++}
+CXX=$(which $CXX)
+
 echo "Bootstrapping..."
-g++ -std=c++20 -Wall -O3 -Isrc -pthread src/bootstrap.cc ctor.cc test/ctor.cc -o ctor && \
+$CXX -std=c++20 -Wall -O3 -Isrc -pthread src/bootstrap.cc ctor.cc test/ctor.cc -o ctor && \
 ./ctor && \
-g++ -std=c++20 -Wall -O3 -Isrc -pthread ctor.cc test/ctor.cc -Lbuild -lctor -o ctor && \
+$CXX -std=c++20 -Wall -O3 -Isrc -pthread ctor.cc test/ctor.cc -Lbuild -lctor -o ctor && \
 ./ctor configure --ctor-includedir=src --ctor-libdir=build && \
 echo "Done. Now run ./ctor to (re)build."
diff --git a/src/bootstrap.cc b/src/bootstrap.cc
index 9079092..c58c399 100644
--- a/src/bootstrap.cc
+++ b/src/bootstrap.cc
@@ -3,6 +3,7 @@
 // See accompanying file LICENSE for details.
 #include <iostream>
 #include <array>
+#include <cstdlib>
 
 #define BOOTSTRAP
 
@@ -35,6 +36,12 @@ bool hasConfiguration(const std::string& key)
 const std::string& getConfiguration(const std::string& key,
                                     const std::string& defaultValue)
 {
+	if(key == cfg::host_cxx && std::getenv("CXX"))
+	{
+		static std::string s = std::getenv("CXX");
+		return s;
+	}
+
 	return defaultValue;
 }
 
diff --git a/src/configure.cc b/src/configure.cc
index 86538ab..50a7c32 100644
--- a/src/configure.cc
+++ b/src/configure.cc
@@ -32,6 +32,7 @@ namespace ctor
 {
 std::optional<std::string> includedir;
 std::optional<std::string> libdir;
+std::map<std::string, std::string> conf_values;
 }
 
 bool hasConfiguration(const std::string& key)
@@ -46,6 +47,11 @@ bool hasConfiguration(const std::string& key)
 		return true;
 	}
 
+	if(ctor::conf_values.find(key) != ctor::conf_values.end())
+	{
+		return true;
+	}
+
 	const auto& c = configuration();
 	return c.tools.find(key) != c.tools.end();
 }
@@ -63,6 +69,11 @@ const std::string& getConfiguration(const std::string& key,
 		return *ctor::libdir;
 	}
 
+	if(ctor::conf_values.find(key) != ctor::conf_values.end())
+	{
+		return ctor::conf_values[key];
+	}
+
 	const auto& c = configuration();
 	if(hasConfiguration(key))
 	{
@@ -376,6 +387,18 @@ int regenerateCache(const Settings& default_settings,
 	std::string build_ar = locate(build_arch, ar_prog);
 	std::string build_ld = locate(build_arch, ld_prog);
 
+	// Store current values for execution in this execution context.
+	if(!ctor_includedir.empty())
+	{
+		ctor::conf_values[cfg::ctor_includedir] = ctor_includedir;
+	}
+	if(!ctor_libdir.empty())
+	{
+		ctor::conf_values[cfg::ctor_libdir] = ctor_libdir;
+	}
+	ctor::conf_values[cfg::host_cxx] = host_cxx;
+	ctor::conf_values[cfg::build_cxx] = build_cxx;
+
 	std::cout << "Writing results to: " << configurationFile.string() << "\n";
 	{
 		std::ofstream istr(configurationFile);
diff --git a/src/rebuild.h b/src/rebuild.h
index afa2307..284aeb2 100644
--- a/src/rebuild.h
+++ b/src/rebuild.h
@@ -8,8 +8,6 @@
 
 #include "ctor.h"
 
-class Settings;
-
 struct BuildConfigurationEntry
 {
 	const char* file;
diff --git a/src/task.h b/src/task.h
index e192555..4efbfff 100644
--- a/src/task.h
+++ b/src/task.h
@@ -28,6 +28,7 @@ class Task
 public:
 	Task(const BuildConfiguration& config, const Settings& settings,
 	     const std::string& sourceDir);
+	virtual ~Task() = default;
 
 	int registerDepTasks(const std::set<std::shared_ptr<Task>>& tasks);
 	virtual int registerDepTasksInner(const std::set<std::shared_ptr<Task>>& tasks) { return 0; }
diff --git a/src/tasks.h b/src/tasks.h
index c547432..403a954 100644
--- a/src/tasks.h
+++ b/src/tasks.h
@@ -10,8 +10,8 @@
 
 #include "task.h"
 
-class BuildConfiguration;
-class Settings;
+struct BuildConfiguration;
+struct Settings;
 
 struct Target
 {
diff --git a/src/unittest.h b/src/unittest.h
index 8dee33c..5118689 100644
--- a/src/unittest.h
+++ b/src/unittest.h
@@ -7,7 +7,7 @@
 #include <memory>
 
 class Task;
-class Settings;
+struct Settings;
 
 int runUnitTests(std::set<std::shared_ptr<Task>>& tasks,
                  const Settings& settings);
diff --git a/test/ctor.cc b/test/ctor.cc
index e6d9734..89a94b9 100644
--- a/test/ctor.cc
+++ b/test/ctor.cc
@@ -19,7 +19,7 @@ BuildConfigurations ctorTestConfigs(const Settings& settings)
 			},
 			.flags = {
 				.cxxflags = {
-					"-std=c++20", "-O3", "-s", "-Wall", "-Werror",
+					"-std=c++20", "-O3", "-Wall", "-Werror",
 					"-I../src", "-Iuunit",
 					"-DOUTPUT=\"execute\"",
 				},
@@ -36,7 +36,7 @@ BuildConfigurations ctorTestConfigs(const Settings& settings)
 			.depends = { "libctor_nomain.a" },
 			.flags = {
 				.cxxflags = {
-					"-std=c++20", "-O3", "-s", "-Wall", "-Werror",
+					"-std=c++20", "-O3", "-Wall", "-Werror",
 					"-I../src", "-Iuunit",
 					"-DOUTPUT=\"tasks\"",
 				},
@@ -53,7 +53,7 @@ BuildConfigurations ctorTestConfigs(const Settings& settings)
 			.depends = { "libctor_nomain.a" },
 			.flags = {
 				.cxxflags = {
-					"-std=c++20", "-O3", "-s", "-Wall", "-Werror",
+					"-std=c++20", "-O3", "-Wall", "-Werror",
 					"-I../src", "-Iuunit",
 					"-DOUTPUT=\"source_type\"",
 				},
@@ -98,7 +98,7 @@ BuildConfigurations ctorTestConfigs(const Settings& settings)
 			},
 			.flags = {
 				.cxxflags = {
-					"-std=c++20", "-O3", "-s", "-Wall", "-Werror",
+					"-std=c++20", "-O3", "-Wall", "-Werror",
 					"-I../src",
 				},
 				.ldflags = { "-pthread" },