Move the check for -fPIC compile flag to qcompilerdetection.h

Task-number: QTBUG-99313
Change-Id: I9072b73a75599381f5f2be0799bca5bf149122de
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

Author: Sona Kurazyan

src/corelib/global/qcompilerdetection.h

@@ -1203,4 +1203,11 @@ static_assert(!std::is_convertible_v<std::nullptr_t, bool>,
               "On MSVC you must pass the /permissive- option to the compiler.");
 #endif
 
+#if defined(QT_BOOTSTRAPPED) || defined(QT_USE_PROTECTED_VISIBILITY) || !defined(__ELF__) || defined(__PIC__)
+// this is fine
+#elif defined(QT_REDUCE_RELOCATIONS)
+#  error "You must build your code with position independent code if Qt was configured with -reduce-relocations. "\
+         "Compile your code with -fPIC (and not with -fPIE)."
+#endif
+
 #endif // QCOMPILERDETECTION_H

src/corelib/global/qglobal.h

@@ -1227,13 +1227,6 @@ Q_CORE_EXPORT int  qEnvironmentVariableIntValue(const char *varName, bool *ok=nu
 
 #define QT_MODULE(x)
 
-#if defined(QT_BOOTSTRAPPED) || defined(QT_USE_PROTECTED_VISIBILITY) || !defined(__ELF__) || defined(__PIC__)
-// this is fine
-#elif defined(QT_REDUCE_RELOCATIONS)
-#  error "You must build your code with position independent code if Qt was built with -reduce-relocations. "\
-         "Compile your code with -fPIC (and not with -fPIE)."
-#endif
-
 // This macro can be used to calculate member offsets for types with a non standard layout.
 // It uses the fact that offsetof() is allowed to support those types since C++17 as an optional
 // feature. All our compilers do support this, but some issue a warning, so we wrap the offsetof()