diff -u -r qt-creator-enterprise-src-4.7.0/src/plugins/projectexplorer/gcctoolchain.cpp qt-creator-enterprise-src-4.7.0.patched/src/plugins/projectexplorer/gcctoolchain.cpp
--- qt-creator-enterprise-src-4.7.0/src/plugins/projectexplorer/gcctoolchain.cpp	2018-07-17 04:49:01.000000000 +0200
+++ qt-creator-enterprise-src-4.7.0.patched/src/plugins/projectexplorer/gcctoolchain.cpp	2018-08-05 12:49:03.710757184 +0200
@@ -1532,19 +1532,25 @@
 
 QSet<Core::Id> LinuxIccToolChainFactory::supportedLanguages() const
 {
-    return {Constants::CXX_LANGUAGE_ID};
+    return {Constants::CXX_LANGUAGE_ID,
+            Constants::C_LANGUAGE_ID};
 }
 
 QList<ToolChain *> LinuxIccToolChainFactory::autoDetect(const QList<ToolChain *> &alreadyKnown)
 {
-    return autoDetectToolchains("icpc", Abi::hostAbi(), Constants::CXX_LANGUAGE_ID,
-                                Constants::LINUXICC_TOOLCHAIN_TYPEID, alreadyKnown);
+    QList<ToolChain *> result
+            = autoDetectToolchains("icpc", Abi::hostAbi(), Constants::CXX_LANGUAGE_ID,
+                                   Constants::LINUXICC_TOOLCHAIN_TYPEID, alreadyKnown);
+    result += autoDetectToolchains("icc",  Abi::hostAbi(), Constants::C_LANGUAGE_ID,
+                                   Constants::LINUXICC_TOOLCHAIN_TYPEID, alreadyKnown);
+    return result;
 }
 
 QList<ToolChain *> LinuxIccToolChainFactory::autoDetect(const FileName &compilerPath, const Core::Id &language)
 {
     const QString fileName = compilerPath.fileName();
-    if (language == Constants::CXX_LANGUAGE_ID && fileName.startsWith("icpc"))
+    if ((language == Constants::CXX_LANGUAGE_ID && fileName.startsWith("icpc")) ||
+        (language == Constants::C_LANGUAGE_ID && fileName.startsWith("icc")))
         return autoDetectToolChain(compilerPath, language);
     return QList<ToolChain *>();
 }