Merge release-5-0 into master

[alexxy/gromacs.git] / cmake / gmxCFlags.cmake

diff --git a/cmake/gmxCFlags.cmake b/cmake/gmxCFlags.cmake
index 4521a8aa0281f0908d27833d2b02d5e920a31baa..799bea1c7bc8f5438ea74a2f857dcd8b57ec61d2 100644 (file)
--- a/cmake/gmxCFlags.cmake
+++ b/cmake/gmxCFlags.cmake
@@ -198,12 +198,18 @@ MACRO(gmx_c_flags)
     endif()
 
     # xlc
+    # The suppressions below stop information messages about -O3
+    # causing non-strict IEEE compliance that changes the semantics of
+    # the program (duh; 1500-036), warnings about correct PBC-related use of
+    # maximum array indices of DIM-sized C arrays (1500-010).
     if (CMAKE_C_COMPILER_ID MATCHES "XL")
         GMX_TEST_CFLAG(CFLAGS_OPT "-qarch=auto -qtune=auto" GMXC_CFLAGS)
         GMX_TEST_CFLAG(CFLAGS_LANG "-qlanglvl=extc99" GMXC_CFLAGS)
+        GMX_TEST_CFLAG(CFLAGS_LANG "-qsuppress=1500-036 -qsuppress=1500-010" GMXC_CFLAGS)
     endif()
     if (CMAKE_CXX_COMPILER_ID MATCHES "XL")
         GMX_TEST_CXXFLAG(CXXFLAGS_OPT "-qarch=auto -qtune=auto" GMXC_CXXFLAGS)
+        GMX_TEST_CXXFLAG(CFLAGS_LANG "-qsuppress=1500-036 -qsuppress=1500-010" GMXC_CXXFLAGS)
     endif()
 
     # msvc