kc3-lang/libbsd/m4/libbsd-funcs.m4

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• Hash : b6d6da4c
  Author :
  Date : 2024-02-20T04:40:32
  

  build: Refactor function checks into a new libbsd-funcs.m4 file These are complex enough to clutter the main configure.ac. Move them into their own file.

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• m4/libbsd-funcs.m4

• # Copyright © 2011-2024 Guillem Jover <guillem@hadrons.org>
  
  # LIBBSD_CHECK_PROGNAME
  # ---------------------
  AC_DEFUN([LIBBSD_CHECK_PROGNAME], [
    AC_MSG_CHECKING([for program_invocation_short_name])
    AC_LINK_IFELSE([
      AC_LANG_PROGRAM([[
  #include <errno.h>
      ]], [[
  const char *p = program_invocation_short_name;
      ]])
    ], [
      AC_DEFINE([HAVE_PROGRAM_INVOCATION_SHORT_NAME], [1],
        [Define to 1 if you have program_invocation_short_name])
      AC_MSG_RESULT([yes])
    ], [
      AC_MSG_RESULT([no])
    ])
  
    AC_MSG_CHECKING([for __progname])
    AC_LINK_IFELSE([
      AC_LANG_PROGRAM([[
  #include <stdio.h>
  extern char *__progname;
      ]], [[
  printf("%s", __progname);
      ]])
    ], [
      AC_DEFINE([HAVE___PROGNAME], [1], [Define to 1 if you have __progname])
      AC_MSG_RESULT([yes])
    ], [
      AC_MSG_RESULT([no])
    ])
  ])
  
  # LIBBSD_CHECK_REGISTER_ATFORK
  # ----------------------------
  AC_DEFUN([LIBBSD_CHECK_REGISTER_ATFORK], [
    AC_MSG_CHECKING([for __register_atfork])
    AC_LINK_IFELSE([
      AC_LANG_PROGRAM([[
  #include <stddef.h>
  extern void *__dso_handle;
  extern int __register_atfork(void (*)(void), void(*)(void), void (*)(void), void *);
      ]], [[
  __register_atfork(NULL, NULL, NULL, __dso_handle);
      ]])
    ], [
      AC_DEFINE([HAVE___REGISTER_ATFORK], [1],
        [Define to 1 if you have __register_atfork])
      AC_MSG_RESULT([yes])
    ], [
      LIBBSD_LIBS="$LIBBSD_LIBS -pthread"
      AC_MSG_RESULT([no])
    ])
  ])
  

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