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build: don't include winsock2.h on cygwin

Under cygwin, winsock2.h is intentionally incompatible with,
<sys/socket.h>, and checking for existence is wrong.

Under mingw, HAVE_WINSOCK2_H is defined on our behalf by
gnulib, in a way that does not interfere with cygwin.

* configure.ac: Drop unnecessary header check.
Reported by Matthias Bolte.
This commit is contained in:
Eric Blake 2010-04-23 10:29:35 -06:00
parent eb9b653243
commit 004aee6346

View File

@ -112,7 +112,8 @@ dnl Availability of various not common threadsafe functions
AC_CHECK_FUNCS([strerror_r strtok_r getmntent_r getgrnam_r getpwuid_r])
dnl Availability of various common headers (non-fatal if missing).
AC_CHECK_HEADERS([pwd.h paths.h regex.h sys/syslimits.h sys/utsname.h sys/wait.h winsock2.h sched.h termios.h sys/poll.h syslog.h mntent.h net/ethernet.h])
AC_CHECK_HEADERS([pwd.h paths.h regex.h sys/syslimits.h sys/utsname.h
sys/wait.h sched.h termios.h sys/poll.h syslog.h mntent.h net/ethernet.h])
dnl Where are the XDR functions?
dnl If portablexdr is installed, prefer that.