diff --git a/Crypto/samples/genrsakey/Makefile b/Crypto/samples/genrsakey/Makefile
index 450781577..b891a960f 100644
--- a/Crypto/samples/genrsakey/Makefile
+++ b/Crypto/samples/genrsakey/Makefile
@@ -10,8 +10,12 @@ include $(POCO_BASE)/build/rules/global
 ifeq ($(POCO_CONFIG),FreeBSD)
 SYSLIBS += -lssl -lcrypto -lz
 else
+ifeq ($(POCO_CONFIG),QNX)
+SYSLIBS += -lssl -lcrypto -lz
+else
 SYSLIBS += -lssl -lcrypto -lz -ldl
 endif
+endif
 objects = genrsakey
 
 target         = genrsakey
diff --git a/Crypto/testsuite/Makefile b/Crypto/testsuite/Makefile
index 4bd251e08..df050ecf7 100644
--- a/Crypto/testsuite/Makefile
+++ b/Crypto/testsuite/Makefile
@@ -10,8 +10,12 @@ include $(POCO_BASE)/build/rules/global
 ifeq ($(POCO_CONFIG),FreeBSD)
 SYSLIBS += -lssl -lcrypto -lz
 else
+ifeq ($(POCO_CONFIG),QNX)
+SYSLIBS += -lssl -lcrypto -lz
+else
 SYSLIBS += -lssl -lcrypto -lz -ldl
 endif
+endif
 
 objects = CryptoTestSuite Driver \
 	CryptoTest DigestEngineTest ECTest \
diff --git a/Foundation/src/File_UNIX.cpp b/Foundation/src/File_UNIX.cpp
index 8fd20b357..f345eb88b 100644
--- a/Foundation/src/File_UNIX.cpp
+++ b/Foundation/src/File_UNIX.cpp
@@ -35,7 +35,7 @@
 #include <utime.h>
 #include <cstring>
 
-#if (POCO_OS == POCO_OS_SOLARIS)
+#if (POCO_OS == POCO_OS_SOLARIS) || (POCO_OS == POCO_OS_QNX)
 #define STATFSFN statvfs
 #define STATFSSTRUCT statvfs
 #else
diff --git a/NetSSL_OpenSSL/samples/HTTPSTimeServer/Makefile b/NetSSL_OpenSSL/samples/HTTPSTimeServer/Makefile
index c1b483ce0..41db06f54 100644
--- a/NetSSL_OpenSSL/samples/HTTPSTimeServer/Makefile
+++ b/NetSSL_OpenSSL/samples/HTTPSTimeServer/Makefile
@@ -10,8 +10,12 @@ include $(POCO_BASE)/build/rules/global
 ifeq ($(POCO_CONFIG),FreeBSD)
 SYSLIBS += -lssl -lcrypto -lz
 else
+ifeq ($(POCO_CONFIG),QNX)
+SYSLIBS += -lssl -lcrypto -lz
+else
 SYSLIBS += -lssl -lcrypto -lz -ldl
 endif
+endif
 
 objects = HTTPSTimeServer
 
diff --git a/NetSSL_OpenSSL/samples/Mail/Makefile b/NetSSL_OpenSSL/samples/Mail/Makefile
index 460039900..d1201f434 100644
--- a/NetSSL_OpenSSL/samples/Mail/Makefile
+++ b/NetSSL_OpenSSL/samples/Mail/Makefile
@@ -10,8 +10,12 @@ include $(POCO_BASE)/build/rules/global
 ifeq ($(POCO_CONFIG),FreeBSD)
 SYSLIBS += -lssl -lcrypto -lz
 else
+ifeq ($(POCO_CONFIG),QNX)
+SYSLIBS += -lssl -lcrypto -lz
+else
 SYSLIBS += -lssl -lcrypto -lz -ldl
 endif
+endif
 
 objects = Mail
 
diff --git a/NetSSL_OpenSSL/samples/TwitterClient/Makefile b/NetSSL_OpenSSL/samples/TwitterClient/Makefile
index 9170f8e6e..86523cfd2 100644
--- a/NetSSL_OpenSSL/samples/TwitterClient/Makefile
+++ b/NetSSL_OpenSSL/samples/TwitterClient/Makefile
@@ -10,8 +10,12 @@ include $(POCO_BASE)/build/rules/global
 ifeq ($(POCO_CONFIG),FreeBSD)
 SYSLIBS += -lssl -lcrypto -lz
 else
+ifeq ($(POCO_CONFIG),QNX)
+SYSLIBS += -lssl -lcrypto -lz
+else
 SYSLIBS += -lssl -lcrypto -lz -ldl
 endif
+endif
 
 objects = Twitter TweetApp
 
diff --git a/NetSSL_OpenSSL/samples/download/Makefile b/NetSSL_OpenSSL/samples/download/Makefile
index 428456eaf..c4631aad0 100644
--- a/NetSSL_OpenSSL/samples/download/Makefile
+++ b/NetSSL_OpenSSL/samples/download/Makefile
@@ -10,8 +10,12 @@ include $(POCO_BASE)/build/rules/global
 ifeq ($(POCO_CONFIG),FreeBSD)
 SYSLIBS += -lssl -lcrypto -lz
 else
+ifeq ($(POCO_CONFIG),QNX)
+SYSLIBS += -lssl -lcrypto -lz
+else
 SYSLIBS += -lssl -lcrypto -lz -ldl
 endif
+endif
 
 objects = download
 
diff --git a/NetSSL_OpenSSL/testsuite/Makefile b/NetSSL_OpenSSL/testsuite/Makefile
index 5913d7045..bd64186fb 100644
--- a/NetSSL_OpenSSL/testsuite/Makefile
+++ b/NetSSL_OpenSSL/testsuite/Makefile
@@ -10,8 +10,12 @@ include $(POCO_BASE)/build/rules/global
 ifeq ($(POCO_CONFIG),FreeBSD)
 SYSLIBS += -lssl -lcrypto -lz
 else
+ifeq ($(POCO_CONFIG),QNX)
+SYSLIBS += -lssl -lcrypto -lz
+else
 SYSLIBS += -lssl -lcrypto -lz -ldl
 endif
+endif
 
 objects = NetSSLTestSuite Driver \
 	HTTPSClientSessionTest HTTPSClientTestSuite HTTPSServerTest HTTPSServerTestSuite \