$OpenBSD: patch-___ghc-4_08_2_configure,v 1.4 2003/08/12 13:25:18 avsm Exp $
Self explanatory, including the annoying falsely detected
leading_underscore issue

Also, fix libgmp test so it works

--- ../ghc-4.08.2/configure.orig	Wed Jan 31 02:04:23 2001
+++ ../ghc-4.08.2/configure	Thu Aug  7 11:06:12 2003
@@ -938,6 +938,15 @@
         HostVendor_CPP='sun'
         HostOS_CPP='solaris2'
         ;;
+sparc-*-openbsd*) #hack
+    HostPlatform=sparc-sun-openbsd #hack
+    TargetPlatform=sparc-sun-openbsd #hack
+    BuildPlatform=sparc-sun-openbsd #hack
+         HostPlatform_CPP='sparc_sun_openbsd'
+         HostArch_CPP='sparc'
+         HostVendor_CPP='sun'
+         HostOS_CPP='openbsd'
+         ;;
 *)
         echo "Unrecognised platform: $HostPlatform"
         exit 1
@@ -1249,7 +1258,7 @@
       exit 1
    else
    $PerlCmd -v >conftest.out 2>&1
-if grep "version 5" conftest.out >/dev/null 2>&1; then
+if grep "version 5.8" conftest.out >/dev/null 2>&1; then
    :
 else
    if grep "version 6" conftest.out >/dev/null 2>&1; then
@@ -1615,7 +1624,6 @@
 fi
 echo "$ac_t""$CPP" 1>&6
 
-
 echo $ac_n "checking for ok way to do context diffs""... $ac_c" 1>&6
 echo "configure:1621: checking for ok way to do context diffs" >&5
 if eval "test \"`echo '$''{'fptools_cv_context_diffs'+set}'`\" = set"; then
@@ -1750,7 +1758,7 @@
   echo "$ac_t""no" 1>&6
 fi
 
-    $WhatCmd $YACC > conftest.out
+    $WhatCmd `which $YACC` > conftest.out
     if egrep 'y1\.c 1\..*SMI' conftest.out >/dev/null 2>&1; then
         echo "I don't trust your $YaccCmd; it looks like an old Sun yacc"
         if test -f /usr/lang/yacc; then
@@ -2356,7 +2364,7 @@
 else
    fptools_cv_happy_version="";
 fi;
-if expr "$fptools_cv_happy_version" "<" 1.6 > /dev/null 2>&1; then
+if expr "$fptools_cv_happy_version" "<" 1.13 > /dev/null 2>&1; then
    if test -d $srcdir/ghc; then
      echo
      echo "Happy version 1.6 or later is required to compile GHC."
@@ -6251,10 +6259,11 @@
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
     builtin and then its argument prototype would still apply.  */
-char mpz_fdiv_qr();
+#include <gmp.h>
 
 int main() {
-mpz_fdiv_qr()
+mpz_ptr a, b, p, q;
+mpz_fdiv_qr(p,q,a,b)
 ; return 0; }
 EOF
 if { (eval echo configure:6261: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
@@ -7364,6 +7373,7 @@
 else
   
 case $HostPlatform in
+*openbsd) fptools_cv_lead_uscore='no';;
 alpha-dec-osf*) fptools_cv_lead_uscore='no';;
 *cygwin32) fptools_cv_lead_uscore='yes';;
 *mingw32) fptools_cv_lead_uscore='yes';;