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11eedcd007
commit 9223336a88 moved the CFLAGS="-std=c99" bit in configure.ac
before the "socklen_t" test, which relies on #ifdef WIN32 to decide
whether to include <ws2tcpip.h> or <sys/socket.h> - which is no longer
defined then, and things explode in interesting ways.
Change to _WIN32, which is the "always defined on all compilers" define
for this.
Signed-off-by: Gert Doering <gert@greenie.muc.de>
Acked-by: Steffan Karger <steffan.karger@fox-it.com>
Message-Id: <20161113193645.73523-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg13032.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>
66 lines
1.5 KiB
Plaintext
66 lines
1.5 KiB
Plaintext
dnl -- The following is base of curl's acinclude.m4 --
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dnl Check for socklen_t: historically on BSD it is an int, and in
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dnl POSIX 1g it is a type of its own, but some platforms use different
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dnl types for the argument to getsockopt, getpeername, etc. So we
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dnl have to test to find something that will work.
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AC_DEFUN([AX_TYPE_SOCKLEN_T], [
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AC_CHECK_TYPE(
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[socklen_t],
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,
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[
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AS_VAR_PUSHDEF([VAR],[ax_cv_socklen_t_equiv])dnl
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AC_CACHE_CHECK(
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[for socklen_t equivalent],
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[VAR],
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[
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#AS_CASE is not supported on <autoconf-2.60
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case "${host}" in
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*-mingw*) VAR=int ;;
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*)
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# Systems have either "struct sockaddr *" or
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# "void *" as the second argument to getpeername
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for arg2 in "struct sockaddr" void; do
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for t in int size_t unsigned long "unsigned long"; do
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AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[
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#include <sys/types.h>
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#include <sys/socket.h>
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int getpeername (int, $arg2 *, $t *);
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]],
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[[
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$t len;
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getpeername(0,0,&len);
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]]
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)],
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[VAR="$t"; break]
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)
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done
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test -n "$VAR" && break
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done
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;;
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esac
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]
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AS_VAR_IF(
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[VAR],
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[],
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[AC_MSG_ERROR([Cannot find a type to use in place of socklen_t])],
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[AC_DEFINE_UNQUOTED(
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[socklen_t],
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[$VAR],
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[type to use in place of socklen_t if not defined]
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)]
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)
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)
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],
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[[
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#include <sys/types.h>
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#ifdef _WIN32
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#include <ws2tcpip.h>
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#else
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#include <sys/socket.h>
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#endif
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]]
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)
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])
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