diff --git a/samples/csvparser/build.bat b/samples/csvparser/build.bat
index 3388b8d7f2d..c2ad4e75619 100644
--- a/samples/csvparser/build.bat
+++ b/samples/csvparser/build.bat
@@ -6,8 +6,5 @@ set DIR=.
 set "PATH=..\..\dist\bin;..\..\bin;%PATH%"
 if "%TARGET%" == "" set TARGET=mingw
 
-call cinterop -def "%DIR%\src\main\c_interop\stdio.def" -target "%TARGET%" -o stdio
-if ERRORLEVEL 1 exit /b %ERRORLEVEL%
-
-call konanc -target "%TARGET%" "%DIR%\src\main\kotlin\CsvParser.kt" -library stdio -o CsvParser
+call konanc -target "%TARGET%" "%DIR%\src\main\kotlin\CsvParser.kt" -o CsvParser
 exit /b %ERRORLEVEL%
diff --git a/samples/csvparser/build.sh b/samples/csvparser/build.sh
index 5bece90b963..b1bba9f01df 100755
--- a/samples/csvparser/build.sh
+++ b/samples/csvparser/build.sh
@@ -22,9 +22,7 @@ COMPILER_ARGS=${!var} # add -opt for an optimized build.
 mkdir -p $DIR/build/c_interop/
 mkdir -p $DIR/build/bin/
 
-cinterop -def $DIR/src/main/c_interop/stdio.def -compilerOpts "$CFLAGS" -target $TARGET -o $DIR/build/c_interop/stdio || exit 1
-
-konanc $COMPILER_ARGS -target $TARGET $DIR/src/main/kotlin/CsvParser.kt -library $DIR/build/c_interop/stdio \
+konanc $COMPILER_ARGS -target $TARGET $DIR/src/main/kotlin/CsvParser.kt \
        -o $DIR/build/bin/CsvParser || exit 1
 
 echo "Artifact path is $DIR/build/bin/CsvParser.kexe"
diff --git a/samples/nonBlockingEchoServer/build.sh b/samples/nonBlockingEchoServer/build.sh
index 5c649dbc381..4df7aba8bcb 100755
--- a/samples/nonBlockingEchoServer/build.sh
+++ b/samples/nonBlockingEchoServer/build.sh
@@ -21,10 +21,7 @@ COMPILER_ARGS=${!var} # add -opt for an optimized build.
 mkdir -p $DIR/build/c_interop/
 mkdir -p $DIR/build/bin/
 
-cinterop -def $DIR/src/main/c_interop/sockets.def -copt "$CFLAGS" -target $TARGET \
-	 -o $DIR/build/c_interop/sockets || exit 1
-
 konanc $COMPILER_ARGS -target $TARGET $DIR/src/main/kotlin/EchoServer.kt \
-       -library $DIR/build/c_interop/sockets -o $DIR/build/bin/EchoServer || exit 1
+        -o $DIR/build/bin/EchoServer || exit 1
 
 echo "Artifact path is $DIR/build/bin/EchoServer.kexe"
diff --git a/samples/socket/build.sh b/samples/socket/build.sh
index d5f61ba5505..b1d7fd628a8 100755
--- a/samples/socket/build.sh
+++ b/samples/socket/build.sh
@@ -19,11 +19,7 @@ COMPILER_ARGS=${!var} # add -opt for an optimized build.
 mkdir -p $DIR/build/c_interop/
 mkdir -p $DIR/build/bin/
 
-cinterop -def $DIR/src/main/c_interop/sockets.def -copt "$CFLAGS" -target $TARGET \
-	 -o $DIR/build/c_interop/sockets || exit 1
-
 konanc $COMPILER_ARGS -target $TARGET $DIR/src/main/kotlin/EchoServer.kt \
-       -library $DIR/build/c_interop/sockets \
        -o $DIR/build/bin/EchoServer || exit 1
 
 echo "Artifact path is $DIR/build/bin/EchoServer.kexe"