diff --git a/examples/sample.makefile.regen b/examples/sample.makefile.regen
index 04b5608bd71853f7ea3c5be48fe9b738cd91306a..57a5350bd04813aba57b9d1541431fcfbc917621 100755
--- a/examples/sample.makefile.regen
+++ b/examples/sample.makefile.regen
@@ -28,7 +28,7 @@ if test -f config.h ; then
 fi
 
 FIXEDPDU=`echo "[$ASN1PDU]" | sed -e "s/.*-pdu=auto.*//"`
-if test "$FIXEDPDU" ; then
+if test ! "$FIXEDPDU" ; then
 	EXTRA_CFLAGS="$EXTRA_CFLAGS -DASN_PDU_COLLECTION"
 fi
 
diff --git a/examples/sample.source.LDAP3/Makefile b/examples/sample.source.LDAP3/Makefile
index 5483981c0f1217daa27dfdfc0df0eabd611e1482..6f3c8cd16f3f6c697569e8610e43ac5dae9e0a15 100644
--- a/examples/sample.source.LDAP3/Makefile
+++ b/examples/sample.source.LDAP3/Makefile
@@ -163,7 +163,7 @@ libsomething_la_SOURCES=$(ASN_MODULE_SOURCES) $(ASN_MODULE_HEADERS)
 # This file may be used as an input for make(3)
 # Remove the lines below to convert it into a pure .am file
 TARGET = ldap3dump
-CFLAGS += -I. -DHAVE_CONFIG_H -DPDU=LDAPMessage
+CFLAGS += -I.  -DHAVE_CONFIG_H -DPDU=LDAPMessage
 OBJS=${ASN_MODULE_SOURCES:.c=.o} ${ASN_CONVERTER_SOURCES:.c=.o}
 
 all: LDAPMessage.c $(TARGET)
diff --git a/examples/sample.source.MEGACO/Makefile b/examples/sample.source.MEGACO/Makefile
index b1415a2d0ba311c240111937bd207dc6be4ce370..d8a930cec058901bd21fc69d095c69132a6fa3a6 100644
--- a/examples/sample.source.MEGACO/Makefile
+++ b/examples/sample.source.MEGACO/Makefile
@@ -285,7 +285,7 @@ libsomething_la_SOURCES=$(ASN_MODULE_SOURCES) $(ASN_MODULE_HEADERS)
 # This file may be used as an input for make(3)
 # Remove the lines below to convert it into a pure .am file
 TARGET = megacoDump
-CFLAGS += -I. -DHAVE_CONFIG_H -DPDU=MegacoMessage
+CFLAGS += -I.  -DHAVE_CONFIG_H -DPDU=MegacoMessage
 OBJS=${ASN_MODULE_SOURCES:.c=.o} ${ASN_CONVERTER_SOURCES:.c=.o}
 
 all: MegacoMessage.c $(TARGET)
diff --git a/examples/sample.source.MHEG5/Makefile b/examples/sample.source.MHEG5/Makefile
index 011b028c0bd93c3136bdf23550fcfc5f784bcdde..b07656a649cdc688bac0e663541d6efea9fecac4 100644
--- a/examples/sample.source.MHEG5/Makefile
+++ b/examples/sample.source.MHEG5/Makefile
@@ -453,7 +453,7 @@ libsomething_la_SOURCES=$(ASN_MODULE_SOURCES) $(ASN_MODULE_HEADERS)
 # This file may be used as an input for make(3)
 # Remove the lines below to convert it into a pure .am file
 TARGET = mheg5dump
-CFLAGS += -I. -DHAVE_CONFIG_H -DPDU=InterchangedObject
+CFLAGS += -I.  -DHAVE_CONFIG_H -DPDU=InterchangedObject
 OBJS=${ASN_MODULE_SOURCES:.c=.o} ${ASN_CONVERTER_SOURCES:.c=.o}
 
 all: InterchangedObject.c $(TARGET)
diff --git a/examples/sample.source.PKIX1/Makefile b/examples/sample.source.PKIX1/Makefile
index 26ca7488f2fc6bdc13ff168683980f7695aca329..8f902b2957b705ae7c18ec3a6fb8397334167301 100644
--- a/examples/sample.source.PKIX1/Makefile
+++ b/examples/sample.source.PKIX1/Makefile
@@ -345,7 +345,7 @@ libsomething_la_SOURCES=$(ASN_MODULE_SOURCES) $(ASN_MODULE_HEADERS)
 # This file may be used as an input for make(3)
 # Remove the lines below to convert it into a pure .am file
 TARGET = x509dump
-CFLAGS += -I. -DHAVE_CONFIG_H -DPDU=Certificate
+CFLAGS += -I.  -DHAVE_CONFIG_H -DPDU=Certificate
 OBJS=${ASN_MODULE_SOURCES:.c=.o} ${ASN_CONVERTER_SOURCES:.c=.o}
 
 all: Certificate.c $(TARGET)
diff --git a/examples/sample.source.TAP3/Makefile b/examples/sample.source.TAP3/Makefile
index 0d6dbcdb104c0c25d5114fc2662d3295dd6b40f0..3dfb47f7b5fba1c74cea6927be5d3c66e3942dea 100644
--- a/examples/sample.source.TAP3/Makefile
+++ b/examples/sample.source.TAP3/Makefile
@@ -679,7 +679,7 @@ libsomething_la_SOURCES=$(ASN_MODULE_SOURCES) $(ASN_MODULE_HEADERS)
 # This file may be used as an input for make(3)
 # Remove the lines below to convert it into a pure .am file
 TARGET = tap3dump
-CFLAGS += -I. -DHAVE_CONFIG_H -DPDU=DataInterChange
+CFLAGS += -I.  -DHAVE_CONFIG_H -DPDU=DataInterChange
 OBJS=${ASN_MODULE_SOURCES:.c=.o} ${ASN_CONVERTER_SOURCES:.c=.o}
 
 all: DataInterChange.c $(TARGET)