| # sys_sem_h.m4 | |
| # serial 1 | |
| dnl Copyright (C) 2023-2026 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 This file is offered as-is, without any warranty. | |
| dnl Written by Bruno Haible. | |
| AC_DEFUN_ONCE([gl_SYS_SEM_H], | |
| [ | |
| AC_CHECK_HEADERS_ONCE([sys/sem.h]) | |
| dnl For now, we provide a <sys/sem.h> wrapper only if the system already has | |
| dnl a <sys/sem.h>. | |
| if test $ac_cv_header_sys_sem_h = yes; then | |
| GL_GENERATE_SYS_SEM_H=true | |
| gl_CHECK_NEXT_HEADERS([sys/sem.h]) | |
| else | |
| GL_GENERATE_SYS_SEM_H=false | |
| fi | |
| ]) |