Merge pull request #10 from susilehtola/native

Solve some issues with BUILD_MARCH_NATIVE
sunqm · May 24, 2021 · f53e5cf · f53e5cf
2 parents ee880fa + cfb94b7
commit f53e5cf
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diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -13,7 +13,12 @@ if ("${CMAKE_BUILD_TYPE}" STREQUAL "")
 endif()
 set(CMAKE_VERBOSE_MAKEFILE OFF)
 option(BUILD_MARCH_NATIVE "gcc flag -march=native" on)
-set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=native -O2")
+if(BUILD_MARCH_NATIVE)
+  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=native -O2")
+else()
+  # This appears to be the lowest version that compiles
+  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -msse3")
+endif()
 if ("${CMAKE_C_COMPILER_ID}" STREQUAL "Intel")
   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -unroll-aggressive -ipo ")
   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-math-errno")

diff --git a/ChangeLog b/ChangeLog
@@ -2,6 +2,7 @@ Version 4.4.0  (2021-05-04):
 	* Add new integral type int1e_grids
 	* Fix cache size type
 	* Refactor cart2sph
+	* Code now compiles with -march=native by default
 Version 4.1.3  (2021-04-13):
 	* Fix memory address int32 overflow for heavily contracted basis
 Version 4.1.2  (2021-04-10):