Adjust behaviour of gcd

[ghc-base.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index e4ab28b..787bf66 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -3,13 +3,20 @@ AC_INIT([Haskell base package], [1.0], [libraries@haskell.org], [base])
 # Safety check: Ensure that we are in the correct source directory.
 AC_CONFIG_SRCDIR([include/HsBase.h])
 
-AC_CONFIG_HEADERS([include/HsBaseConfig.h])
+AC_CONFIG_HEADERS([include/HsBaseConfig.h include/EventConfig.h])
 
 AC_ARG_WITH([cc],
             [C compiler],
             [CC=$withval])
 AC_PROG_CC()
 
+case `uname -s` in
+    MINGW*|CYGWIN*)
+        WINDOWS=YES;;
+    *)
+        WINDOWS=NO;;
+esac
+
 # do we have long longs?
 AC_CHECK_TYPES([long long])
 
@@ -17,7 +24,7 @@ dnl ** check for full ANSI header (.h) files
 AC_HEADER_STDC
 
 # check for specific header (.h) files that we are interested in
-AC_CHECK_HEADERS([ctype.h errno.h fcntl.h inttypes.h limits.h signal.h sys/resource.h sys/select.h sys/stat.h sys/syscall.h sys/time.h sys/timeb.h sys/timers.h sys/times.h sys/types.h sys/utsname.h sys/wait.h termios.h time.h unistd.h utime.h windows.h winsock.h langinfo.h])
+AC_CHECK_HEADERS([ctype.h errno.h fcntl.h inttypes.h limits.h signal.h sys/resource.h sys/select.h sys/stat.h sys/syscall.h sys/time.h sys/timeb.h sys/timers.h sys/times.h sys/types.h sys/utsname.h sys/wait.h termios.h time.h unistd.h utime.h windows.h winsock.h langinfo.h poll.h sys/epoll.h sys/event.h sys/eventfd.h])
 
 # Enable large file support. Do this before testing the types ino_t, off_t, and
 # rlim_t, because it will affect the result of that test.
@@ -32,6 +39,22 @@ AC_CHECK_FUNCS([lstat])
 AC_CHECK_FUNCS([getclock getrusage times])
 AC_CHECK_FUNCS([_chsize ftruncate])
 
+AC_CHECK_FUNCS([epoll_ctl eventfd kevent kevent64 kqueue poll])
+
+# event-related fun
+
+if test "$ac_cv_header_sys_epoll_h" = yes -a "$ac_cv_func_epoll_ctl" = yes; then
+  AC_DEFINE([HAVE_EPOLL], [1], [Define if you have epoll support.])
+fi
+
+if test "$ac_cv_header_sys_event_h" = yes -a "$ac_cv_func_kqueue" = yes; then
+  AC_DEFINE([HAVE_KQUEUE], [1], [Define if you have kqueue support.])
+fi
+
+if test "$ac_cv_header_poll_h" = yes -a "$ac_cv_func_poll" = yes; then
+  AC_DEFINE([HAVE_POLL], [1], [Define if you have poll support.])
+fi
+
 dnl--------------------------------------------------------------------
 dnl * Deal with arguments telling us iconv is somewhere odd
 dnl--------------------------------------------------------------------
@@ -70,11 +93,20 @@ FPTOOLS_CHECK_HTYPE(double)
 FPTOOLS_CHECK_HTYPE(ptrdiff_t)
 FPTOOLS_CHECK_HTYPE(size_t)
 FPTOOLS_CHECK_HTYPE(wchar_t)
-# Int32 is a HACK for non-ISO C compilers
-FPTOOLS_CHECK_HTYPE(sig_atomic_t, Int32)
+FPTOOLS_CHECK_HTYPE(sig_atomic_t)
 FPTOOLS_CHECK_HTYPE(clock_t)
 FPTOOLS_CHECK_HTYPE(time_t)
-FPTOOLS_CHECK_HTYPE(dev_t, Word32)
+FPTOOLS_CHECK_HTYPE(useconds_t)
+FPTOOLS_CHECK_HTYPE_ELSE(suseconds_t,
+                         [if test "$WINDOWS" = "YES"
+                          then
+                              AC_CV_NAME=Int32
+                              AC_CV_NAME_supported=yes
+                              AC_MSG_RESULT([not found...on Windows, so using Int32])
+                          else
+                              AC_MSG_ERROR([type not found])
+                          fi])
+FPTOOLS_CHECK_HTYPE(dev_t)
 FPTOOLS_CHECK_HTYPE(ino_t)
 FPTOOLS_CHECK_HTYPE(mode_t)
 FPTOOLS_CHECK_HTYPE(off_t)
@@ -87,20 +119,11 @@ FPTOOLS_CHECK_HTYPE(tcflag_t)
 FPTOOLS_CHECK_HTYPE(nlink_t)
 FPTOOLS_CHECK_HTYPE(ssize_t)
 FPTOOLS_CHECK_HTYPE(rlim_t)
-FPTOOLS_CHECK_HTYPE(wint_t)
 
 FPTOOLS_CHECK_HTYPE(intptr_t)
 FPTOOLS_CHECK_HTYPE(uintptr_t)
-# Workaround for OSes that don't have intmax_t and uintmax_t, e.g. OpenBSD.
-if test "$ac_cv_type_long_long" = yes; then
-  fptools_cv_default_htype_intmax=$fptools_cv_htype_long_long
-  fptools_cv_default_htype_uintmax=$fptools_cv_htype_unsigned_long_long
-else
-  fptools_cv_default_htype_intmax=$fptools_cv_htype_long
-  fptools_cv_default_htype_uintmax=$fptools_cv_htype_unsigned_long
-fi
-FPTOOLS_CHECK_HTYPE(intmax_t, $fptools_cv_default_htype_intmax)
-FPTOOLS_CHECK_HTYPE(uintmax_t, $fptools_cv_default_htype_uintmax)
+FPTOOLS_CHECK_HTYPE(intmax_t)
+FPTOOLS_CHECK_HTYPE(uintmax_t)
 
 # test errno values
 FP_CHECK_CONSTS([E2BIG EACCES EADDRINUSE EADDRNOTAVAIL EADV EAFNOSUPPORT EAGAIN EALREADY EBADF EBADMSG EBADRPC EBUSY ECHILD ECOMM ECONNABORTED ECONNREFUSED ECONNRESET EDEADLK EDESTADDRREQ EDIRTY EDOM EDQUOT EEXIST EFAULT EFBIG EFTYPE EHOSTDOWN EHOSTUNREACH EIDRM EILSEQ EINPROGRESS EINTR EINVAL EIO EISCONN EISDIR ELOOP EMFILE EMLINK EMSGSIZE EMULTIHOP ENAMETOOLONG ENETDOWN ENETRESET ENETUNREACH ENFILE ENOBUFS ENODATA ENODEV ENOENT ENOEXEC ENOLCK ENOLINK ENOMEM ENOMSG ENONET ENOPROTOOPT ENOSPC ENOSR ENOSTR ENOSYS ENOTBLK ENOTCONN ENOTDIR ENOTEMPTY ENOTSOCK ENOTTY ENXIO EOPNOTSUPP EPERM EPFNOSUPPORT EPIPE EPROCLIM EPROCUNAVAIL EPROGMISMATCH EPROGUNAVAIL EPROTO EPROTONOSUPPORT EPROTOTYPE ERANGE EREMCHG EREMOTE EROFS ERPCMISMATCH ERREMOTE ESHUTDOWN ESOCKTNOSUPPORT ESPIPE ESRCH ESRMNT ESTALE ETIME ETIMEDOUT ETOOMANYREFS ETXTBSY EUSERS EWOULDBLOCK EXDEV ENOCIGAR], [#include <stdio.h>
@@ -130,11 +153,10 @@ FP_SEARCH_LIBS_PROTO(iconv,
                       iconv_close(cd);],
                      iconv,
                      [EXTRA_LIBS="$EXTRA_LIBS $ac_lib"],
-                     [case `uname -s` in
-                        MINGW*|CYGWIN*) ;;
-                        *)
-                             AC_MSG_ERROR([iconv is required on non-Windows platforms]);;
-                      esac])
+                     [if test "$WINDOWS" = "NO"
+                      then
+                          AC_MSG_ERROR([iconv is required on non-Windows platforms])
+                      fi])
 
 # If possible, we use libcharset instead of nl_langinfo(CODESET) to
 # determine the current locale's character encoding.