X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=aclocal.m4;h=6e9801fbc858a4bbb059d11fa319d43e6ab236c3;hb=671fdd151ac7f8e4c67f1a2b55189cc48f2e5983;hp=a8f54124ea9598c149cdb780ce0815f5cd5c4902;hpb=a4f3f0790c84739ab08ee0e41a4b7a7132cdba0b;p=ghc-base.git

diff --git a/aclocal.m4 b/aclocal.m4
index a8f5412..6e9801f 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -169,12 +169,17 @@ AC_DEFUN([FPTOOLS_CHECK_HTYPE_ELSE],[
             fi
         fi
         ])
+    if test "$AC_CV_NAME_supported" = no
+    then
+        $2
+    fi
+
+    dnl Note: evaluating dollar-2 can change the value of
+    dnl $AC_CV_NAME_supported, so we might now get a different answer
     if test "$AC_CV_NAME_supported" = yes; then
         AC_MSG_RESULT($AC_CV_NAME)
         AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME,
                            [Define to Haskell type for $1])
-    else
-        $2
     fi
     undefine([AC_TYPE_NAME])dnl
     undefine([AC_CV_NAME])dnl