--- configure.orig	2023-06-15 17:12:01.000000000 +0800
+++ configure	2023-06-15 17:16:24.000000000 +0800
@@ -1799,8 +1799,9 @@
 if test `uname -s` = "Darwin"
 then
     OPENMP_CXXFLAGS='-Xclang -fopenmp'
+if clang --version | grep -i "clang" >/dev/null; then
     OPENMP_LIB='-lomp'
-
+fi
     # libomp 15.0+ from brew is keg-only (i.e. not symlinked into the standard paths search by the linker),
     # so need to search in other locations.
     # See https://github.com/Homebrew/homebrew-core/issues/112107#issuecomment-1278042927.