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| author | Quincey Koziol <koziol@hdfgroup.org> | 2006-09-15 20:20:39 (GMT) |
|---|---|---|
| committer | Quincey Koziol <koziol@hdfgroup.org> | 2006-09-15 20:20:39 (GMT) |
| commit | b047710a9577cb381308f30b67e81f2974029333 (patch) | |
| tree | 5888c6f563bc2946d91a590ac5f7b76f5a66812b /configure.in | |
| parent | 24725d64aa4e944c4be4e0dcefa0880cb8ac627c (diff) | |
| download | hdf5-b047710a9577cb381308f30b67e81f2974029333.zip hdf5-b047710a9577cb381308f30b67e81f2974029333.tar.gz hdf5-b047710a9577cb381308f30b67e81f2974029333.tar.bz2 | |
[svn-r12669] Description:
Use a slightly less efficient method of computing the log2() on SGI IRIX64,
in order to avoid a compiler bug when optimizations are turned on.
Tested on:
SGI IRIX64 6.5 (atlantia)
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/configure.in b/configure.in index edb848c..ef31a23 100644 --- a/configure.in +++ b/configure.in @@ -3244,6 +3244,23 @@ else fi dnl ---------------------------------------------------------------------- +dnl Set the flag to indicate that the machine generates bad code +dnl for the H5V_log2_gen() routine in src/H5Vprivate.h +dnl (This flag should be set to no for all machines, except for SGI IRIX64, +dnl where the cache value is set to yes in it's config file) +dnl +AC_MSG_CHECKING([if bad code for log2 routine is generated]) +AC_CACHE_VAL([hdf5_cv_bad_log2_code_generated], [hdf5_cv_bad_log2_code_generated=no]) + +if test ${hdf5_cv_bad_log2_code_generated} = "yes"; then + AC_DEFINE([BAD_LOG2_CODE_GENERATED], [1], + [Define if your system generates wrong code for log2 routine.]) + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) +fi + +dnl ---------------------------------------------------------------------- dnl Set some variables for general configuration information to be saved dnl and installed with the libraries. dnl |