ENH: Added try-compile KWSYS_STAT_HAS_ST_MTIM. This tests whether struct stat has the extra st_mtim member that has high resolution times.

bootstrap

@@ -189,7 +189,8 @@ cmake_kwsys_config_replace_string ()
                 s/@KWSYS_IOS_USE_SSTREAM@/${KWSYS_IOS_USE_SSTREAM}/g;
                 s/@KWSYS_IOS_USE_STRSTREAM_H@/${KWSYS_IOS_USE_STRSTREAM_H}/g;
                 s/@KWSYS_IOS_USE_STRSTREA_H@/${KWSYS_IOS_USE_STRSTREA_H}/g;
-                s/@KWSYS_STL_HAVE_STD@/${KWSYS_STL_HAVE_STD}/g;}" >> "${OUTFILE}.tmp"
+                s/@KWSYS_STL_HAVE_STD@/${KWSYS_STL_HAVE_STD}/g;
+                s/@KWSYS_STAT_HAS_ST_MTIM@/${KWSYS_STAT_HAS_ST_MTIM}/g;}" >> "${OUTFILE}.tmp"
     if [ -f "${OUTFILE}.tmp" ]; then
       if diff "${OUTFILE}" "${OUTFILE}.tmp" > /dev/null 2> /dev/null ; then
         #echo "Files are the same"
@@ -695,6 +696,7 @@ KWSYS_IOS_HAVE_STD=0
 KWSYS_IOS_USE_SSTREAM=0
 KWSYS_IOS_USE_ANSI=0
 KWSYS_STL_HAVE_STD=0
+KWSYS_STAT_HAS_ST_MTIM=0
 
 if cmake_try_run "${cmake_cxx_compiler}" \
   "${cmake_cxx_flags} -DTEST_KWSYS_STL_HAVE_STD" \
@@ -754,6 +756,15 @@ if [ "x$KWSYS_IOS_USE_SSTREAM" = "x0" ]; then
   fi
 fi
 
+if cmake_try_run "${cmake_cxx_compiler}" \
+  "${cmake_cxx_flags} -DTEST_KWSYS_STAT_HAS_ST_MTIM" \
+  "${cmake_source_dir}/Source/kwsys/kwsysPlatformCxxTests.cxx" >> cmake_bootstrap.log 2>&1; then
+  KWSYS_STAT_HAS_ST_MTIM=1
+  echo "${cmake_cxx_compiler} has struct stat with st_mtim member"
+else
+  echo "${cmake_cxx_compiler} does not have struct stat with st_mtim member"
+fi
+
 # Just to be safe, let us store compiler and flags to the header file
 
 cmake_bootstrap_version='$Revision$'