Fix building with GHC 6.8

[ghc-hetmet.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index a055a2c..8c984de 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -680,6 +680,22 @@ fi
 # Check whether this GHC has editline installed
 FP_GHC_HAS_EDITLINE
 
+# Dummy arguments to print help for --with-editline-* arguments.
+# Those are actually passed to the editline package's configure script
+# via the CONFIGURE_ARGS variable in mk/config.mk
+AC_ARG_WITH(dummy-editline-includes,
+  [AC_HELP_STRING([--with-editline-includes],
+    [directory containing editline/editline.h or editline/readline.h])],
+    [],
+    [])
+
+AC_ARG_WITH(dummy-editline-libraries,
+  [AC_HELP_STRING([--with-editline-libraries],
+    [directory containing the editline library])],
+    [],
+    [])
+
+
 AC_PATH_PROGS(NHC,nhc nhc98)
 AC_PATH_PROG(HBC,hbc)
 
@@ -725,8 +741,9 @@ dnl ** Build shared and/or static libs?
 dnl --------------------------------------------------------------
 AC_ARG_ENABLE(shared,
 [AC_HELP_STRING([--enable-shared],
-[Build shared libraries, if available. [default=no]])],
+[Build shared libraries, if available (EXPERIMENTAL, non-working). [default=no]])],
 [ if test x"$enableval" = x"yes"; then
+        AC_MSG_WARN([--enable-shared is experimental and not fully supported at this time])
         BuildSharedLibs=YES
   else
         BuildSharedLibs=NO
@@ -834,20 +851,6 @@ dnl if test x"$EnableWin32DLLs" = "xYES" ; then
 dnl  AC_DEFINE(HAVE_WIN32_DLL_SUPPORT)
 dnl fi
 
-dnl ** .NET interop support?
-dnl --------------------------------------------------------------
-AC_ARG_ENABLE(dotnet,
-[AC_HELP_STRING([--enable-dotnet],
-[Build .NET interop layer. [default=no]])],
-[ if test x"$enableval" = x"yes"; then
-        DotnetSupport=YES; AC_DEFINE([WANT_DOTNET_SUPPORT], [1], [Define to 1 if you want to include .NET interop support.])
-  else
-        DotnetSupport=NO
-  fi],
-[DotnetSupport=NO]
-)
-AC_SUBST(DotnetSupport)
-
 dnl ** Mac OS X: explicit deployment target
 dnl --------------------------------------------------------------
 AC_ARG_WITH([macosx-deployment-target],
@@ -1277,3 +1280,22 @@ AC_SUBST(HavePapi)
 AC_CONFIG_FILES([mk/config.mk compiler/ghc.cabal ghc/ghc-bin.cabal ghc.spec extra-gcc-opts docs/users_guide/ug-book.xml])
 AC_CONFIG_COMMANDS([mk/stamp-h],[echo timestamp > mk/stamp-h])
 AC_OUTPUT
+
+# We get caught by
+#     http://savannah.gnu.org/bugs/index.php?1516
+#     $(eval ...) inside conditionals causes errors
+# with make 3.80, so warn the user if it looks like they're about to
+# try to use it.
+checkMake380() {
+    if $1 --version 2>&1 | head -1 | grep -q 'GNU Make 3\.80'
+    then
+        echo
+        echo "WARNING: It looks like \"$1\" is GNU make 3.80."
+        echo "This version cannot be used to build GHC."
+        echo "Please use GNU make >= 3.81."
+    fi
+}
+
+checkMake380 make
+checkMake380 gmake
+