diff options
Diffstat (limited to 'm4/sched_h.m4')
| -rw-r--r-- | m4/sched_h.m4 | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/m4/sched_h.m4 b/m4/sched_h.m4 new file mode 100644 index 0000000..931358f --- /dev/null +++ b/m4/sched_h.m4 @@ -0,0 +1,40 @@ +# sched_h.m4 serial 6 +dnl Copyright (C) 2008-2013 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl Written by Bruno Haible. + +AC_DEFUN([gl_SCHED_H], +[ + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[ + #include <sched.h> + struct sched_param a; + int b[] = { SCHED_FIFO, SCHED_RR, SCHED_OTHER }; + pid_t t1; + ]])], + [SCHED_H=''], + [SCHED_H='sched.h' + + gl_CHECK_NEXT_HEADERS([sched.h]) + + if test $ac_cv_header_sched_h = yes; then + HAVE_SCHED_H=1 + else + HAVE_SCHED_H=0 + fi + AC_SUBST([HAVE_SCHED_H]) + + AC_CHECK_TYPE([struct sched_param], + [HAVE_STRUCT_SCHED_PARAM=1], [HAVE_STRUCT_SCHED_PARAM=0], + [#include <sched.h>]) + AC_SUBST([HAVE_STRUCT_SCHED_PARAM]) + + dnl Ensure the type pid_t gets defined. + AC_REQUIRE([AC_TYPE_PID_T]) + ]) + AC_SUBST([SCHED_H]) + AM_CONDITIONAL([GL_GENERATE_SCHED_H], [test -n "$SCHED_H"]) +]) |