diff --git a/Makefile b/Makefile
index 744c4804c..123f49daf 100644
--- a/Makefile
+++ b/Makefile
@@ -305,6 +305,14 @@ ConfigFilesCHECKED := $(patsubst %.cfg,%.checked,$(ConfigFiles))
 	xmllint --noout --relaxng cfg/cppcheck-cfg.rng $<
 validateCFG: ${ConfigFilesCHECKED}
 
+# Validation of platforms files:
+PlatformFiles := $(wildcard platforms/*.xml)
+PlatformFilesCHECKED := $(patsubst %.xml,%.checked,$(PlatformFiles))
+.PHONY: validatePlatforms
+%.checked:%.xml
+	xmllint --noout --relaxng platforms/cppcheck-platforms.rng $<
+validatePlatforms: ${PlatformFilesCHECKED}
+
 
 ###### Build
 
diff --git a/platforms/cppcheck-platforms.rng b/platforms/cppcheck-platforms.rng
new file mode 100644
index 000000000..e870ab869
--- /dev/null
+++ b/platforms/cppcheck-platforms.rng
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<grammar ns="" xmlns="http://relaxng.org/ns/structure/1.0" datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
+  <start>
+    <element name="platform">
+      <element name="char_bit">
+        <data type="integer"/>
+      </element>
+      <element name="default-sign">
+        <data type="NCName"/>
+      </element>
+      <element name="sizeof">
+	    <zeroOrMore>
+		<choice>
+        <element name="bool">
+          <data type="integer"/>
+        </element>
+        <element name="short">
+          <data type="integer"/>
+        </element>
+        <element name="int">
+          <data type="integer"/>
+        </element>
+        <element name="long">
+          <data type="integer"/>
+        </element>
+        <element name="long-long">
+          <data type="integer"/>
+        </element>
+        <element name="float">
+          <data type="integer"/>
+        </element>
+        <element name="double">
+          <data type="integer"/>
+        </element>
+        <element name="long-double">
+          <data type="integer"/>
+        </element>
+        <element name="pointer">
+          <data type="integer"/>
+        </element>
+        <element name="size_t">
+          <data type="integer"/>
+        </element>
+        <element name="wchar_t">
+          <data type="integer"/>
+        </element>
+		</choice>
+		</zeroOrMore>
+      </element>
+    </element>
+  </start>
+</grammar>
diff --git a/tools/dmake.cpp b/tools/dmake.cpp
index 3c2a47484..3a8259e8a 100644
--- a/tools/dmake.cpp
+++ b/tools/dmake.cpp
@@ -375,7 +375,7 @@ int main(int argc, char **argv)
     fout << "\t./testrunner\n\n";
     fout << "check:\tall\n";
     fout << "\t./testrunner -q\n\n";
-    fout << "checkcfg:\tcppcheck validateCFG\n";
+    fout << "checkcfg:\tcppcheck validateCFG validatePlatforms\n";
     fout << "\t./test/cfg/runtests.sh\n\n";
     fout << "dmake:\ttools/dmake.o cli/filelister.o $(SRCDIR)/pathmatch.o $(SRCDIR)/path.o externals/simplecpp/simplecpp.o\n";
     fout << "\t$(CXX) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)\n\n";
@@ -407,7 +407,13 @@ int main(int argc, char **argv)
     fout << "%.checked:%.cfg\n";
     fout << "\txmllint --noout --relaxng cfg/cppcheck-cfg.rng $<\n";
     fout << "validateCFG: ${ConfigFilesCHECKED}\n\n";
-
+    fout << "# Validation of platforms files:\n";
+    fout << "PlatformFiles := $(wildcard platforms/*.xml)\n";
+    fout << "PlatformFilesCHECKED := $(patsubst %.xml,%.checked,$(PlatformFiles))\n";
+    fout << ".PHONY: validatePlatforms\n";
+    fout << "%.checked:%.xml\n";
+    fout << "\txmllint --noout --relaxng platforms/cppcheck-platforms.rng $<\n";
+    fout << "validatePlatforms: ${PlatformFilesCHECKED}\n\n";
 
     fout << "\n###### Build\n\n";