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| author | Bruno Haible <bruno@clisp.org> | 2023-04-14 12:48:01 +0200 |
|---|---|---|
| committer | Bruno Haible <bruno@clisp.org> | 2023-04-14 12:48:01 +0200 |
| commit | e8bbebe5b5cc672aa28e5b4fb91e3624415d0e00 (patch) | |
| tree | e5ad74ef2922c257cd3953ad944c14091d5387c0 /m4 | |
| parent | 90c477e69abf6e6414d9099b265dce0e7986c703 (diff) | |
| download | gnulib-e8bbebe5b5cc672aa28e5b4fb91e3624415d0e00.tar.gz | |
sys_sem: New module.
* lib/sys_sem.in.h: New file.
* m4/sys_sem_h.m4: New file.
* modules/sys_sem: New file.
* doc/posix-headers/sys_sem.texi: Mention the new module.
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/sys_sem_h.m4 | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/m4/sys_sem_h.m4 b/m4/sys_sem_h.m4 new file mode 100644 index 0000000000..20510f1fbe --- /dev/null +++ b/m4/sys_sem_h.m4 @@ -0,0 +1,20 @@ +# sys_sem_h.m4 serial 1 +dnl Copyright (C) 2023 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_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 +]) |