writer->writeLine(formatString("SIMD instructions: %s", GMX_SIMD_STRING));
writer->writeLine(formatString("FFT library: %s", getFftDescriptionString()));
writer->writeLine(formatString("RDTSCP usage: %s", HAVE_RDTSCP ? "enabled" : "disabled"));
-#ifdef GMX_USE_TNG
+#if GMX_USE_TNG
writer->writeLine("TNG support: enabled");
#else
writer->writeLine("TNG support: disabled");