diff options
Diffstat (limited to 'm4/group-member.m4')
-rw-r--r-- | m4/group-member.m4 | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/m4/group-member.m4 b/m4/group-member.m4 index 2a8f0427e..36fda49f1 100644 --- a/m4/group-member.m4 +++ b/m4/group-member.m4 @@ -1,11 +1,24 @@ -#serial 3 +#serial 4 dnl Written by Jim Meyering AC_DEFUN([jm_FUNC_GROUP_MEMBER], - [ - dnl Do this replacement check manually because I want the hyphen - dnl (not the underscore) in the filename. - AC_CHECK_FUNC(group_member, , [AC_LIBOBJ(group-member)]) - ] -) +[ + dnl Persuade glibc <unistd.h> to declare group_member(). + AC_REQUIRE([AC_GNU_SOURCE]) + + dnl Do this replacement check manually because I want the hyphen + dnl (not the underscore) in the filename. + AC_CHECK_FUNC(group_member, , [ + AC_LIBOBJ(group-member) + gl_PREREQ_GROUP_MEMBER + ]) +]) + +# Prerequisites of lib/group-member.c. +AC_DEFUN([gl_PREREQ_GROUP_MEMBER], +[ + AC_REQUIRE([AC_HEADER_STDC]) + AC_CHECK_HEADERS_ONCE(unistd.h) + AC_REQUIRE([AC_FUNC_GETGROUPS]) +]) |