diff --git a/var/spack/repos/builtin/packages/hdf5/package.py b/var/spack/repos/builtin/packages/hdf5/package.py index 5dc748ef5e4..00483230efd 100644 --- a/var/spack/repos/builtin/packages/hdf5/package.py +++ b/var/spack/repos/builtin/packages/hdf5/package.py @@ -331,10 +331,10 @@ def flag_handler(self, name, flags): cmake_flags = [] if name == "cflags": - if spec.compiler.name in ["gcc", "clang", "apple-clang"]: + if spec.compiler.name in ["gcc", "clang", "apple-clang", "oneapi"]: # Quiet warnings/errors about implicit declaration of functions # in C99: - cmake_flags.append("-Wno-implicit-function-declaration") + cmake_flags.append("-Wno-error=implicit-function-declaration") # Note that this flag will cause an error if building %nvhpc. if spec.satisfies("@:1.8.12~shared"): # More recent versions set CMAKE_POSITION_INDEPENDENT_CODE to