X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=configure.ac;h=9175078c4e319e30d55ec83701c7b31929416091;hp=84d6c6df053878528e57fb4b38aa2425253b07ba;hb=21c9699eb5175355db4c44643a58b3c532238400;hpb=ac4610c4da6966803b851cb4264bcb4427d6e2d0

diff --git a/configure.ac b/configure.ac
index 84d6c6d..9175078 100644
--- a/configure.ac
+++ b/configure.ac
@@ -637,8 +637,6 @@ AC_ARG_WITH([ghc],
   WithGhc="$GHC"])
 AC_SUBST([WithGhc])
 
-FP_FIND_ROOT
-
 AC_ARG_WITH(hc,
 [AC_HELP_STRING([--with-hc=ARG],
         [Use ARG as the path to the compiler for compiling ordinary
@@ -656,14 +654,8 @@ if test "$WithGhc" != ""; then
   AC_SUBST(GhcPatchLevel)dnl
   GhcMinVersion2=`echo "$GhcMinVersion" | sed 's/^\\(.\\)$/0\\1/'`
   GhcCanonVersion="$GhcMajVersion$GhcMinVersion2"
-  if test $GhcCanonVersion -ge 601; then ghc_ge_601=YES; else ghc_ge_601=NO; fi
-  if test $GhcCanonVersion -ge 602; then ghc_ge_602=YES; else ghc_ge_602=NO; fi
-  if test $GhcCanonVersion -ge 603; then ghc_ge_603=YES; else ghc_ge_603=NO; fi
   if test $GhcCanonVersion -ge 605; then ghc_ge_605=YES; else ghc_ge_605=NO; fi
   if test $GhcCanonVersion -ge 607; then ghc_ge_607=YES; else ghc_ge_607=NO; fi
-  AC_SUBST(ghc_ge_601)dnl
-  AC_SUBST(ghc_ge_602)dnl
-  AC_SUBST(ghc_ge_603)dnl
   AC_SUBST(ghc_ge_605)dnl
   AC_SUBST(ghc_ge_607)dnl
 fi
@@ -754,10 +746,17 @@ fi;
 fi;
 
 dnl ** Must have GHC to build GHC, unless --enable-hc-boot is on
-if test "$BootingFromHc" = "NO" -a "$WithGhc" = "" -a -d "$srcdir/compiler"; then
-AC_MSG_ERROR([GHC is required unless bootstrapping from .hc files.])
+if test "$BootingFromHc" = "NO" -a -d "$srcdir/compiler"; then
+  if test "$WithGhc" = ""; then
+     AC_MSG_ERROR([GHC is required unless bootstrapping from .hc files.])
+  fi
+  FP_COMPARE_VERSIONS([$GhcVersion],[-lt],[6.4],
+    [AC_MSG_ERROR([GHC version 6.4 or later is required to compile GHC.])])dnl
 fi;
 
+# This uses GHC, so put it after the "GHC is required" check above:
+FP_FIND_ROOT
+
 dnl ** Enable the construction of Win32 DLLs?
 dnl --------------------------------------------------------------
 dnl
@@ -928,6 +927,15 @@ dnl   if GNU tar is named gtar, look for it first.
 AC_PATH_PROGS(TarCmd,gtar tar,tar)
 
 AC_PATH_PROG(HSCOLOUR,HsColour)
+# HsColour is passed to Cabal, so we need a native path
+if test "x$HostPlatform" = "xi386-unknown-mingw32"
+    then
+       if test "${OSTYPE}" != "msys"
+         then
+         # Canonicalise to <drive>:/path/to/gcc
+         HSCOLOUR=`cygpath -w ${HSCOLOUR} | sed -e 's@\\\\@/@g' `
+       fi
+fi
 
 dnl ** check for DocBook toolchain
 FP_CHECK_DOCBOOK_DTD