diff options
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/configure.in b/configure.in index 363a00d..2f83597 100644 --- a/configure.in +++ b/configure.in @@ -1683,7 +1683,7 @@ int main(void) if test ${hdf5_cv_malloc_works} = "yes"; then AC_DEFINE([MALLOC_WORKS], [1], - [Define if your system has a working \`malloc' function.]) + [Define if your system's \`malloc' function returns a valid pointer for 0-byte allocations.]) AC_MSG_RESULT([yes]) else AC_MSG_RESULT([no]) @@ -2296,8 +2296,26 @@ dnl else AC_MSG_RESULT(no) fi -fi + dnl ---------------------------------------------------------------------- + dnl Set the flag to indicate that the MPI_File_set_size() function + dnl works with files over 2GB, unless it's already set in the cache. + dnl (This flag should be set for all machines, except for ASCI Red, where + dnl the cache value is set in it's config file) + dnl + AC_MSG_CHECKING([if MPI_File_set_size works for files over 2GB]) + AC_CACHE_VAL([hdf5_cv_mpi_file_set_size_big], [hdf5_cv_mpi_file_set_size_big=yes]) + + if test ${hdf5_cv_mpi_file_set_size_big} = "yes"; then + AC_DEFINE([MPI_FILE_SET_SIZE_BIG], [1], + [Define if your system's \`MPI_File_set_size' function works for files over 2GB.]) + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + fi + +fi + dnl ---------------------------------------------------------------------- dnl Turn on internal I/O filters by setting macros in header files dnl Internal I/O filters are contained entirely within the library and do |