diff options
Diffstat (limited to 'unix/tcl.m4')
| -rw-r--r-- | unix/tcl.m4 | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/unix/tcl.m4 b/unix/tcl.m4 index a1bdc5b..1cbc199 100644 --- a/unix/tcl.m4 +++ b/unix/tcl.m4 @@ -478,6 +478,25 @@ AC_DEFUN(SC_ENABLE_THREADS, [ AC_CHECK_FUNCS(pthread_atfork) LIBS=$ac_saved_libs AC_CHECK_FUNCS(readdir_r) + if test "x$ac_cv_func_readdir_r" = "xyes"; then + # IRIX 5.3 has a 2 arg version of readdir_r + # while other systems have a 3 arg version. + AC_CACHE_VAL(tcl_cv_two_arg_readdir_r, + AC_TRY_COMPILE([#include <sys/types.h> +#include <sys/dir.h>], [readdir_r(NULL, NULL);], + tcl_cv_two_arg_readdir_r=yes, tcl_cv_two_arg_readdir_r=no)) + AC_CACHE_VAL(tcl_cv_three_arg_readdir_r, + AC_TRY_COMPILE([#include <sys/types.h> +#include <sys/dir.h>], [readdir_r(NULL, NULL, NULL);], + tcl_cv_three_arg_readdir_r=yes, tcl_cv_three_arg_readdir_r=no)) + if test "x$tcl_cv_two_arg_readdir_r" = "xyes" ; then + AC_DEFINE(HAVE_TWO_ARG_READDIR_R) + elif test "x$tcl_cv_three_arg_readdir_r" = "xyes" ; then + AC_DEFINE(HAVE_THREE_ARG_READDIR_R) + else + AC_MSG_ERROR([unknown number of args for readdir_r]) + fi + fi else TCL_THREADS=0 AC_MSG_RESULT([no (default)]) |