diff --git a/CMakeLists.txt b/CMakeLists.txt
index 87fec7f1887..f7b1072ba0a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -351,7 +351,13 @@ IF(WITH_CORE)
   MESSAGE(STATUS "Found zlib: ${ZLIB_LIBRARIES}")
 
   FIND_PACKAGE(ZSTD REQUIRED) # for decompression of point clouds
+  IF (ZSTD_FOUND)
+    SET(HAVE_ZSTD TRUE)  # used in qgsconfig.h
+  ENDIF (ZSTD_FOUND)
   FIND_PACKAGE(LazPerf REQUIRED) # for decompression of point clouds
+  IF (LazPerf_FOUND)
+    SET(HAVE_LAZPERF TRUE)  # used in qgsconfig.h
+  ENDIF (LazPerf_FOUND)
 
   # optional
   IF (WITH_POSTGRESQL)
@@ -380,6 +386,7 @@ IF(WITH_CORE)
   ELSE (WITH_QTWEBKIT)
     MESSAGE(STATUS "Qt WebKit support DISABLED.")
   ENDIF(WITH_QTWEBKIT)
+
   #############################################################
   # search for Qt5
   SET(QT_MIN_VERSION 5.9.0)
diff --git a/cmake_templates/qgsconfig.h.in b/cmake_templates/qgsconfig.h.in
index 38e93ac35ad..94b7965a8b6 100644
--- a/cmake_templates/qgsconfig.h.in
+++ b/cmake_templates/qgsconfig.h.in
@@ -76,5 +76,9 @@
 
 #cmakedefine HAVE_STATIC_PROVIDERS
 
+#cmakedefine HAVE_ZSTD
+
+#cmakedefine HAVE_LAZPERF
+
 #endif
 
diff --git a/src/core/providers/ept/qgseptdecoder.cpp b/src/core/providers/ept/qgseptdecoder.cpp
index 2dc264456c4..97966bb82ec 100644
--- a/src/core/providers/ept/qgseptdecoder.cpp
+++ b/src/core/providers/ept/qgseptdecoder.cpp
@@ -18,13 +18,19 @@
 #include "qgseptdecoder.h"
 #include "qgseptpointcloudindex.h"
 #include "qgsvector3d.h"
+#include "qgsconfig.h"
 
-#include <zstd.h>
 #include <QFile>
 #include <iostream>
 
+#if defined ( HAVE_ZSTD )
+#include <zstd.h>
+#endif
+
+#if defined ( HAVE_LAZPERF )
 #include "laz-perf/io.hpp"
 #include "laz-perf/common/common.hpp"
+#endif
 
 ///@cond PRIVATE
 
@@ -60,7 +66,7 @@ QVector<char> QgsEptDecoder::decompressBinaryClasses( const QString &filename, i
   Q_ASSERT( r );
 
   int count = f.size() / pointRecordSize;
-  QVector<char> classes(count);
+  QVector<char> classes( count );
   for ( int i = 0; i < count; ++i )
   {
     QByteArray bytes = f.read( pointRecordSize );
@@ -78,6 +84,8 @@ QVector<char> QgsEptDecoder::decompressBinaryClasses( const QString &filename, i
 
 /* *************************************************************************************** */
 
+#if defined(HAVE_ZSTD)
+
 QByteArray decompressZtdStream( const QByteArray &dataCompressed )
 {
   // NOTE: this is very primitive implementation because we expect the uncompressed
@@ -135,8 +143,18 @@ QVector<qint32> QgsEptDecoder::decompressZStandard( const QString &filename, int
   return data;
 }
 
+#else // defined(HAVE_ZSTD)
+QVector<qint32> QgsEptDecoder::decompressZStandard( const QString &filename, int pointRecordSize )
+{
+  //TODO graceful error
+  Q_ASSERT( false );
+}
+
+#endif // defined(HAVE_ZSTD)
+
 /* *************************************************************************************** */
 
+#if defined ( HAVE_LAZPERF )
 QVector<qint32> QgsEptDecoder::decompressLaz( const QString &filename )
 {
   std::ifstream file( filename.toLatin1().constData(), std::ios::binary );
@@ -165,4 +183,12 @@ QVector<qint32> QgsEptDecoder::decompressLaz( const QString &filename )
   return data;
 }
 
+#else // defined ( HAVE_LAZPERF )
+QVector<qint32> QgsEptDecoder::decompressLaz( const QString &filename )
+{
+  //TODO graceful return and error message
+  Q_ASSERT( false );
+}
+#endif
+
 ///@endcond