diff options
| -rw-r--r-- | config/cmake/ConfigureChecks.cmake | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/config/cmake/ConfigureChecks.cmake b/config/cmake/ConfigureChecks.cmake index bbd310e..6fb9ec1 100644 --- a/config/cmake/ConfigureChecks.cmake +++ b/config/cmake/ConfigureChecks.cmake @@ -411,7 +411,13 @@ SET (LINUX_LFS 0) SET (HDF5_EXTRA_FLAGS) IF (NOT WINDOWS) # Linux Specific flags - SET (HDF5_EXTRA_FLAGS -D_POSIX_SOURCE=199506L -D_BSD_SOURCE) + # This was originally defined as _POSIX_SOURCE which was updated to + # _POSIX_C_SOURCE=199506L to expose a greater amount of POSIX + # functionality so clock_gettime and CLOCK_MONOTONIC are defined + # correctly. + # POSIX feature information can be found in the gcc manual at: + # http://www.gnu.org/s/libc/manual/html_node/Feature-Test-Macros.html + SET (HDF5_EXTRA_FLAGS -D_POSIX_C_SOURCE=199506L -D_BSD_SOURCE) OPTION (HDF5_ENABLE_LARGE_FILE "Enable support for large (64-bit) files on Linux." ON) IF (HDF5_ENABLE_LARGE_FILE) SET (msg "Performing TEST_LFS_WORKS") |