build: fix linking tests on Linux
build: fix linking tests on Linux

runtime now requires "-lm"

JuliusKunze/kotlin-native,wiltonlazary/kotlin-native,wiltonlazary/kotlin-native,JetBrains/kotlin-native,jiaminglu/kotlin-native,JetBrains/kotlin-native,JetBrains/kotlin-native,JuliusKunze/kotlin-native,JetBrains/kotlin-native,wiltonlazary/kotlin-native,JetBrains/kotlin-native,jiaminglu/kotlin-native,JetBrains/kotlin-native,JetBrains/kotlin-native,JuliusKunze/kotlin-native,wiltonlazary/kotlin-native,jiaminglu/kotlin-native,JuliusKunze/kotlin-native,jiaminglu/kotlin-native,jiaminglu/kotlin-native,wiltonlazary/kotlin-native,JuliusKunze/kotlin-native,jiaminglu/kotlin-native,JuliusKunze/kotlin-native,JetBrains/kotlin-native,jiaminglu/kotlin-native,jiaminglu/kotlin-native,JuliusKunze/kotlin-native,JetBrains/kotlin-native,JuliusKunze/kotlin-native