[project @ 2000-05-09 10:43:45 by rrt]

Changed Perl test so that it simply allows vv5 & 6 and disallows any other;
also hardwire path to perl to /bin/perl under Windows, to avoid clashing with
other weird Perls that may be on the path.

aclocal.m4

-dnl $Id: aclocal.m4,v 1.46 1999/12/21 13:00:54 simonmar Exp $
+dnl $Id: aclocal.m4,v 1.47 2000/05/09 10:43:45 rrt Exp $
 dnl 
 dnl Extra autoconf macros for the Glasgow fptools
 dnl
@@ -319,26 +319,13 @@ dnl contains path to perl binary
 dnl
 AC_DEFUN(FPTOOLS_CHECK_PERL_VERSION,
 [$PerlCmd -v >conftest.out 2>&1
-if grep "version 4" conftest.out >/dev/null 2>&1; then
-   if grep "Patch level: 35" conftest.out >/dev/null 2>&1; then
-      echo "
-************************************************************************
-Uh-oh...looks like you have Perl 4.035.
-
-Perl version 4.035 has a bug to do with recursion that will bite if
-you run the lit2texi script, when making Info files from
-literate files of various sorts.  Either use perl5, the last version of perl4 
-(4.036), or an older version (e.g., perl 4.019). Failing that, don't create
-any Info files :-)
-************************************************************************
-"
-   fi
+if grep "version 5" conftest.out >/dev/null 2>&1; then
+   :
 else
-   if grep "version 5" conftest.out >/dev/null 2>&1; then
+   if grep "version 6" conftest.out >/dev/null 2>&1; then
       :
    else
-     echo "I'm not sure if your version of perl will work,"
-     echo "but it's worth a shot, eh?"
+     echo "Your version of perl probably won't work."
    fi
 fi
 rm -fr conftest*

configure.in

@@ -407,15 +407,27 @@ dnl --------------------------------------------------------------
 dnl ** does #! work?
 AC_SYS_INTERPRETER()
 
-dnl ** look for `perl', but watch out for version 4.035
-AC_PATH_PROG(PerlCmd,perl)
-if test -z "$PerlCmd"; then
-   echo "You must install perl before you can continue"
-   echo "Perhaps it is already installed, but not in your PATH?"
-   exit 1
-else
-FPTOOLS_CHECK_PERL_VERSION
-fi
+dnl ** look for `perl', but only in /bin on Windows
+case $HostOS_CPP in
+cygwin32|mingw32)
+   AC_CHECK_PROG(PerlCmd,perl,/bin/perl,,/bin)
+   if test -z "$PerlCmd"; then
+      echo "You must install the version of Perl shipped with GHC"
+      echo "(or a compatible one) in /bin."
+      exit 1
+   fi
+   ;;
+*)
+   AC_PATH_PROG(PerlCmd,perl)
+   if test -z "$PerlCmd"; then
+      echo "You must install perl before you can continue"
+      echo "Perhaps it is already installed, but not in your PATH?"
+      exit 1
+   else
+   FPTOOLS_CHECK_PERL_VERSION
+   fi
+   ;;
+esac
 
 dnl ** does #! path/to/perl work? (sometimes it's too long...)
 FPTOOLS_SHEBANG_PERL