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diff -Naur spack-src/build/linux.gcc.inc spack-src.patched/build/linux.gcc.inc
--- spack-src/build/linux.gcc.inc 2019-03-21 11:28:21.000000000 -0400
+++ spack-src.patched/build/linux.gcc.inc 2021-07-28 16:02:11.714975264 -0400
@@ -29,7 +29,9 @@
WARNING_KEY = -Wall
TEST_WARNING_KEY = -Wshadow -Wcast-qual -Woverloaded-virtual -Wnon-virtual-dtor
-WARNING_SUPPRESS = -Wno-parentheses
+# Skip for nvhpc compilers
+#WARNING_SUPPRESS = -Wno-parentheses
+WARNING_SUPPRESS =
DYLIB_KEY = -shared
EXPORT_KEY = -Wl,--version-script,
LIBDL = -ldl
@@ -63,10 +65,11 @@
# gcc 6.0 and later have -flifetime-dse option that controls
# elimination of stores done outside the object lifetime
-ifneq (,$(shell $(CONLY) -dumpversion | egrep "^([6-9])"))
- # keep pre-contruction stores for zero initialization
- DSE_KEY = -flifetime-dse=1
-endif
+# Skip for nvhpc compilers
+#ifneq (,$(shell $(CONLY) -dumpversion | egrep "^([6-9])"))
+# # keep pre-contruction stores for zero initialization
+# DSE_KEY = -flifetime-dse=1
+#endif
ifeq ($(cfg), release)
CPLUS_FLAGS = $(ITT_NOTIFY) -g -O2 -DUSE_PTHREAD
@@ -149,7 +152,9 @@
# Setting tbbmalloc data.
#------------------------------------------------------------------------------
-M_CPLUS_FLAGS = $(CPLUS_FLAGS) -fno-rtti -fno-exceptions
+# Drop -fno-rtti flag for nvhpc compilers
+#M_CPLUS_FLAGS = $(CPLUS_FLAGS) -fno-rtti -fno-exceptions
+M_CPLUS_FLAGS = $(CPLUS_FLAGS) -fno-exceptions
#------------------------------------------------------------------------------
# End of setting tbbmalloc data.
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