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Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index ec526d8892..3c153c6680 100644 --- a/configure.ac +++ b/configure.ac @@ -946,6 +946,31 @@ AC_TRY_LINK_FUNC(printf\$LDBLStub, [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).]) ]) +dnl Some platforms (e.g. Android's Bionic) have pthreads support available +dnl without linking against libpthread. Check whether -lpthread is necessary +dnl to use pthreads. +dnl +dnl Note that it is important that this happens before we AC_CHECK_LIB(thread) +AC_MSG_CHECKING(whether -lpthread is needed for pthreads) +AC_CHECK_FUNC(pthread_create, + [ + AC_MSG_RESULT(no) + need_lpthread=0 + ], + [ + AC_CHECK_LIB(pthread, pthread_create, + [ + AC_MSG_RESULT(yes) + need_lpthread=1 + ], + [ + AC_MSG_RESULT([no pthreads support found.]) + need_lpthread=0 + ]) + ]) +AC_DEFINE_UNQUOTED([NEED_PTHREAD_LIB], [$need_lpthread], + [Define 1 if we need to link code using pthreads with -lpthread]) + dnl ** pthread_setname_np is a recent addition to glibc, and OS X has dnl a different single-argument version. AC_CHECK_LIB(pthread, pthread_setname_np) |