diff --git a/RedPandaIDE/compiler/compiler.cpp b/RedPandaIDE/compiler/compiler.cpp
index f5518f60..5b3c7110 100644
--- a/RedPandaIDE/compiler/compiler.cpp
+++ b/RedPandaIDE/compiler/compiler.cpp
@@ -36,9 +36,8 @@
 
 #define COMPILE_PROCESS_END "---//END//----"
 
-Compiler::Compiler(const QString &filename, bool silent, bool onlyCheckSyntax):
+Compiler::Compiler(const QString &filename, bool onlyCheckSyntax):
     QThread(),
-    mSilent(silent),
     mOnlyCheckSyntax(onlyCheckSyntax),
     mFilename(filename),
     mRebuild(false),
diff --git a/RedPandaIDE/compiler/compiler.h b/RedPandaIDE/compiler/compiler.h
index 326f23ce..eec997ab 100644
--- a/RedPandaIDE/compiler/compiler.h
+++ b/RedPandaIDE/compiler/compiler.h
@@ -34,7 +34,7 @@ public:
         Project,
         StdIn
     };
-    Compiler(const QString& filename, bool silent,bool onlyCheckSyntax);
+    Compiler(const QString& filename, bool onlyCheckSyntax);
     Compiler(const Compiler&)=delete;
     Compiler& operator=(const Compiler&)=delete;
 
@@ -88,7 +88,6 @@ protected:
     void runCommand(const QString& cmd, const QString& arguments, const QString& workingDir, const QByteArray& inputText=QByteArray(), const QString& outputFile=QString());
 
 protected:
-    bool mSilent;
     bool mOnlyCheckSyntax;
     QString mCompiler;
     QString mArguments;
diff --git a/RedPandaIDE/compiler/compilermanager.cpp b/RedPandaIDE/compiler/compilermanager.cpp
index aa7b5475..ce4af2e4 100644
--- a/RedPandaIDE/compiler/compilermanager.cpp
+++ b/RedPandaIDE/compiler/compilermanager.cpp
@@ -92,10 +92,10 @@ void CompilerManager::compile(const QString& filename, const QByteArray& encodin
         //deleted when thread finished
 #ifdef ENABLE_SDCC
         if (pSettings->compilerSets().defaultSet()->compilerType()==CompilerType::SDCC) {
-            mCompiler = new SDCCFileCompiler(filename,encoding,compileType);
+            mCompiler = new SDCCFileCompiler(filename,encoding,compileType,false);
         } else
 #endif
-            mCompiler = new FileCompiler(filename,encoding,compileType,false,false);
+            mCompiler = new FileCompiler(filename,encoding,compileType,false);
         mCompiler->setRebuild(rebuild);
         connect(mCompiler, &Compiler::finished, mCompiler, &QObject::deleteLater);
         connect(mCompiler, &Compiler::compileFinished, this, &CompilerManager::onCompileFinished);
@@ -126,7 +126,7 @@ void CompilerManager::compileProject(std::shared_ptr<Project> project, bool rebu
         mCompileErrorCount = 0;
         mCompileIssueCount = 0;
         //deleted when thread finished
-        mCompiler = new ProjectCompiler(project,false,false);
+        mCompiler = new ProjectCompiler(project,false);
         mCompiler->setRebuild(rebuild);
         connect(mCompiler, &Compiler::finished, mCompiler, &QObject::deleteLater);
         connect(mCompiler, &Compiler::compileFinished, this, &CompilerManager::onCompileFinished);
@@ -158,7 +158,7 @@ void CompilerManager::cleanProject(std::shared_ptr<Project> project)
         mCompileErrorCount = 0;
         mCompileIssueCount = 0;
         //deleted when thread finished
-        ProjectCompiler* compiler = new ProjectCompiler(project,false,false);
+        ProjectCompiler* compiler = new ProjectCompiler(project,false);
         compiler->setOnlyClean(true);
         mCompiler = compiler;
         mCompiler->setRebuild(false);
@@ -189,7 +189,7 @@ void CompilerManager::buildProjectMakefile(std::shared_ptr<Project> project)
         if (mCompiler!=nullptr) {
             return;
         }
-        ProjectCompiler compiler(project,false,false);
+        ProjectCompiler compiler(project,false);
         compiler.buildMakeFile();
     }
 
@@ -213,7 +213,7 @@ void CompilerManager::checkSyntax(const QString &filename, const QByteArray& enc
         mSyntaxCheckIssueCount = 0;
 
         //deleted when thread finished
-        mBackgroundSyntaxChecker = new StdinCompiler(filename,encoding, content,true,true);
+        mBackgroundSyntaxChecker = new StdinCompiler(filename,encoding, content,true);
         mBackgroundSyntaxChecker->setProject(project);
         connect(mBackgroundSyntaxChecker, &Compiler::finished, mBackgroundSyntaxChecker, &QThread::deleteLater);
         connect(mBackgroundSyntaxChecker, &Compiler::compileIssue, this, &CompilerManager::onSyntaxCheckIssue);
diff --git a/RedPandaIDE/compiler/compilermanager.h b/RedPandaIDE/compiler/compilermanager.h
index 85b8d04a..1a7ee2cf 100644
--- a/RedPandaIDE/compiler/compilermanager.h
+++ b/RedPandaIDE/compiler/compilermanager.h
@@ -19,7 +19,6 @@
 
 #include <QObject>
 #include <QMutex>
-#include "../utils.h"
 #include "../common.h"
 
 class Runner;
diff --git a/RedPandaIDE/compiler/filecompiler.cpp b/RedPandaIDE/compiler/filecompiler.cpp
index 477c2439..e15632aa 100644
--- a/RedPandaIDE/compiler/filecompiler.cpp
+++ b/RedPandaIDE/compiler/filecompiler.cpp
@@ -16,7 +16,6 @@
  */
 #include "filecompiler.h"
 #include "utils.h"
-#include "../mainwindow.h"
 #include "compilermanager.h"
 #include "qsynedit/syntaxer/asm.h"
 #include "../systemconsts.h"
@@ -27,8 +26,8 @@
 
 
 FileCompiler::FileCompiler(const QString &filename, const QByteArray &encoding,
-                           CppCompileType compileType,bool silent,bool onlyCheckSyntax):
-    Compiler(filename, silent,onlyCheckSyntax),
+                           CppCompileType compileType, bool onlyCheckSyntax):
+    Compiler(filename, onlyCheckSyntax),
     mEncoding(encoding),
     mCompileType(compileType)
 {
diff --git a/RedPandaIDE/compiler/filecompiler.h b/RedPandaIDE/compiler/filecompiler.h
index 731a09bf..504b5771 100644
--- a/RedPandaIDE/compiler/filecompiler.h
+++ b/RedPandaIDE/compiler/filecompiler.h
@@ -25,7 +25,7 @@ class FileCompiler : public Compiler
 public:
     FileCompiler(const QString& filename, const QByteArray& encoding,
                  CppCompileType compileType,
-                 bool silent,bool onlyCheckSyntax);
+                 bool onlyCheckSyntax);
     FileCompiler(const FileCompiler&)=delete;
     FileCompiler& operator=(const FileCompiler&)=delete;
 
diff --git a/RedPandaIDE/compiler/projectcompiler.cpp b/RedPandaIDE/compiler/projectcompiler.cpp
index a2c3c3a3..bc43bf2e 100644
--- a/RedPandaIDE/compiler/projectcompiler.cpp
+++ b/RedPandaIDE/compiler/projectcompiler.cpp
@@ -23,8 +23,8 @@
 
 #include <QDir>
 
-ProjectCompiler::ProjectCompiler(std::shared_ptr<Project> project, bool silent, bool onlyCheckSyntax):
-    Compiler("",silent,onlyCheckSyntax),
+ProjectCompiler::ProjectCompiler(std::shared_ptr<Project> project, bool onlyCheckSyntax):
+    Compiler("",onlyCheckSyntax),
     mOnlyClean(false)
 {
     setProject(project);
diff --git a/RedPandaIDE/compiler/projectcompiler.h b/RedPandaIDE/compiler/projectcompiler.h
index 0ad76d07..20406c32 100644
--- a/RedPandaIDE/compiler/projectcompiler.h
+++ b/RedPandaIDE/compiler/projectcompiler.h
@@ -26,7 +26,7 @@ class ProjectCompiler : public Compiler
 {
     Q_OBJECT
 public:
-    ProjectCompiler(std::shared_ptr<Project> project, bool silent,bool onlyCheckSyntax);
+    ProjectCompiler(std::shared_ptr<Project> project, bool onlyCheckSyntax);
     ProjectCompiler(const ProjectCompiler&)=delete;
     ProjectCompiler& operator=(const ProjectCompiler&)=delete;
     void buildMakeFile();
diff --git a/RedPandaIDE/compiler/sdccfilecompiler.cpp b/RedPandaIDE/compiler/sdccfilecompiler.cpp
index e16d9a9a..cec0c795 100644
--- a/RedPandaIDE/compiler/sdccfilecompiler.cpp
+++ b/RedPandaIDE/compiler/sdccfilecompiler.cpp
@@ -25,8 +25,8 @@
 
 
 SDCCFileCompiler::SDCCFileCompiler(const QString &filename, const QByteArray &encoding,
-                           CppCompileType compileType):
-    Compiler(filename, false,false),
+                           CppCompileType compileType, bool onlyCheckSyntax):
+    Compiler(filename, onlyCheckSyntax),
     mEncoding(encoding),
     mCompileType(compileType),
     mNoStartup(false)
@@ -36,7 +36,17 @@ SDCCFileCompiler::SDCCFileCompiler(const QString &filename, const QByteArray &en
 
 bool SDCCFileCompiler::prepareForCompile()
 {
-    compilerSet()->setCompilationStage(Settings::CompilerSet::CompilationStage::GenerateExecutable);
+    //compilerSet()->setCompilationStage(Settings::CompilerSet::CompilationStage::GenerateExecutable);
+
+    if (mOnlyCheckSyntax) {
+        mCompiler = compilerSet()->CCompiler();
+        mArguments += getCCompileArguments(false);
+        mArguments += getCIncludeArguments();
+        mArguments += getProjectIncludeArguments();
+        mArguments = QString("--syntax-only \"%1\"").arg(mFilename);
+        mDirectory = extractFileDir(mFilename);
+        return true;
+    }
     log(tr("Compiling single file..."));
     log("------------------");
     log(tr("- Filename: %1").arg(mFilename));
diff --git a/RedPandaIDE/compiler/sdccfilecompiler.h b/RedPandaIDE/compiler/sdccfilecompiler.h
index 8b214d11..70e41d4d 100644
--- a/RedPandaIDE/compiler/sdccfilecompiler.h
+++ b/RedPandaIDE/compiler/sdccfilecompiler.h
@@ -24,7 +24,7 @@ class SDCCFileCompiler : public Compiler
     Q_OBJECT
 public:
     SDCCFileCompiler(const QString& filename, const QByteArray& encoding,
-                 CppCompileType compileType);
+                 CppCompileType compileType, bool onlyCheckSyntax);
     SDCCFileCompiler(const SDCCFileCompiler&)=delete;
     SDCCFileCompiler& operator=(const SDCCFileCompiler&)=delete;
 
diff --git a/RedPandaIDE/compiler/stdincompiler.cpp b/RedPandaIDE/compiler/stdincompiler.cpp
index 680743fd..b025eaf3 100644
--- a/RedPandaIDE/compiler/stdincompiler.cpp
+++ b/RedPandaIDE/compiler/stdincompiler.cpp
@@ -20,8 +20,8 @@
 #include <QFileInfo>
 #include <QTextCodec>
 
-StdinCompiler::StdinCompiler(const QString &filename,const QByteArray& encoding, const QString& content,bool silent, bool onlyCheckSyntax):
-    Compiler(filename,silent, onlyCheckSyntax),
+StdinCompiler::StdinCompiler(const QString &filename,const QByteArray& encoding, const QString& content, bool onlyCheckSyntax):
+    Compiler(filename, onlyCheckSyntax),
     mContent(content),
     mEncoding(encoding)
 {
diff --git a/RedPandaIDE/compiler/stdincompiler.h b/RedPandaIDE/compiler/stdincompiler.h
index 96860836..e7b615bd 100644
--- a/RedPandaIDE/compiler/stdincompiler.h
+++ b/RedPandaIDE/compiler/stdincompiler.h
@@ -24,7 +24,7 @@ class StdinCompiler : public Compiler
     Q_OBJECT
 
 public:
-    explicit StdinCompiler(const QString& filename, const QByteArray& encoding, const QString& content, bool silent,bool onlyCheckSyntax);
+    explicit StdinCompiler(const QString& filename, const QByteArray& encoding, const QString& content, bool onlyCheckSyntax);
     StdinCompiler(const StdinCompiler&)=delete;
     StdinCompiler& operator=(const StdinCompiler&)=delete;
 
diff --git a/RedPandaIDE/settings.cpp b/RedPandaIDE/settings.cpp
index 449ef9e8..d68a1443 100644
--- a/RedPandaIDE/settings.cpp
+++ b/RedPandaIDE/settings.cpp
@@ -3018,9 +3018,13 @@ bool Settings::CompilerSets::addSets(const QString &folder, const QString& c_pro
     PCompilerSet baseSet = addSet(folder,c_prog);
     if (!baseSet || baseSet->name().isEmpty())
         return false;
+#if ENABLE_SDCC
     if (c_prog == SDCC_PROGRAM) {
-        //sdcc do nothing
+        baseSet->setCompileOption(SDCC_OPT_NOSTARTUP,COMPILER_OPTION_ON);
     } else {
+#else
+    {
+#endif
         QString baseName = baseSet->name();
         QString platformName;
         if (isTarget64Bit(baseSet->target())) {