summaryrefslogtreecommitdiff
path: root/gnulib-m4/inet_pton.m4
diff options
context:
space:
mode:
Diffstat (limited to 'gnulib-m4/inet_pton.m4')
-rw-r--r--gnulib-m4/inet_pton.m470
1 files changed, 70 insertions, 0 deletions
diff --git a/gnulib-m4/inet_pton.m4 b/gnulib-m4/inet_pton.m4
new file mode 100644
index 0000000..9507296
--- /dev/null
+++ b/gnulib-m4/inet_pton.m4
@@ -0,0 +1,70 @@
+# inet_pton.m4 serial 19
+dnl Copyright (C) 2006, 2008-2022 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.
+
+AC_DEFUN([gl_FUNC_INET_PTON],
+[
+ AC_REQUIRE([gl_ARPA_INET_H_DEFAULTS])
+
+ dnl Persuade Solaris <arpa/inet.h> to declare inet_pton.
+ AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
+
+ AC_REQUIRE([AC_C_RESTRICT])
+
+ dnl Most platforms that provide inet_pton define it in libc.
+ dnl Solaris 8..10 provide inet_pton in libnsl instead.
+ dnl Solaris 2.6..7 provide inet_pton in libresolv instead.
+ dnl Haiku provides it in -lnetwork.
+ dnl Native Windows provides it in -lws2_32 instead, with a declaration in
+ dnl <ws2tcpip.h>, and it uses stdcall calling convention, not cdecl
+ dnl (hence we cannot use AC_CHECK_FUNCS, AC_SEARCH_LIBS to find it).
+ HAVE_INET_PTON=1
+ INET_PTON_LIB=
+ gl_PREREQ_SYS_H_WINSOCK2
+ if test $HAVE_WINSOCK2_H = 1; then
+ dnl It needs to be overridden, because the stdcall calling convention
+ dnl is not compliant with POSIX. Set REPLACE_INET_PTON in order to avoid
+ dnl a name conflict at the linker level, even though the header file
+ dnl <ws2tcpip.h> declares inet_pton only if _WIN32_WINNT >= 0x0600.
+ REPLACE_INET_PTON=1
+ AC_CHECK_DECLS([inet_pton],,, [[#include <ws2tcpip.h>]])
+ if test $ac_cv_have_decl_inet_pton = yes; then
+ INET_PTON_LIB="-lws2_32"
+ else
+ HAVE_DECL_INET_PTON=0
+ fi
+ else
+ gl_save_LIBS=$LIBS
+ AC_SEARCH_LIBS([inet_pton], [nsl resolv network], [],
+ [AC_CHECK_FUNCS([inet_pton])
+ if test $ac_cv_func_inet_pton = no; then
+ HAVE_INET_PTON=0
+ fi
+ ])
+ LIBS=$gl_save_LIBS
+
+ if test "$ac_cv_search_inet_pton" != "no" \
+ && test "$ac_cv_search_inet_pton" != "none required"; then
+ INET_PTON_LIB="$ac_cv_search_inet_pton"
+ fi
+
+ AC_CHECK_HEADERS_ONCE([netdb.h])
+ AC_CHECK_DECLS([inet_pton],,,
+ [[#include <arpa/inet.h>
+ #if HAVE_NETDB_H
+ # include <netdb.h>
+ #endif
+ ]])
+ if test $ac_cv_have_decl_inet_pton = no; then
+ HAVE_DECL_INET_PTON=0
+ fi
+ fi
+ AC_SUBST([INET_PTON_LIB])
+])
+
+# Prerequisites of lib/inet_pton.c.
+AC_DEFUN([gl_PREREQ_INET_PTON], [
+ AC_REQUIRE([gl_SOCKET_FAMILIES])
+])