Look for pthreads functionality in libc.

If there is no libpthread, look for pthreads functionality in libc
before failing to configure pthreads.  This is necessary on at least the
Android platform.

Reported by Mike Hommey.
This commit is contained in:
Jason Evans 2012-03-16 16:57:02 -07:00
parent 6508bc6931
commit 39006f9907

View File

@ -746,8 +746,11 @@ dnl ============================================================================
dnl Configure pthreads.
AC_CHECK_HEADERS([pthread.h], , [AC_MSG_ERROR([pthread.h is missing])])
dnl Some systems may embed pthreads functionality in libc; check for libpthread
dnl first, but try libc too before failing.
AC_CHECK_LIB([pthread], [pthread_create], [LIBS="$LIBS -lpthread"],
[AC_MSG_ERROR([libpthread is missing])])
[AC_SEARCH_LIBS([pthread_create], , ,
AC_MSG_ERROR([libpthread is missing]))])
CPPFLAGS="$CPPFLAGS -D_REENTRANT"