Update to llvm-config tool, by Erik Kidd:
1. Check for Perl and only build llvm-config if its available.
2. Add some virtual components
3. Don't depend on "standard" location for Perl, but configured location
4. Document the tool with a POD file.
This version is now ready for testing by users.
llvm-svn: 27005
diff --git a/llvm/autoconf/m4/path_perl.m4 b/llvm/autoconf/m4/path_perl.m4
new file mode 100644
index 0000000..406656c
--- /dev/null
+++ b/llvm/autoconf/m4/path_perl.m4
@@ -0,0 +1,16 @@
+dnl Check for a reasonable version of Perl.
+dnl $1 - Minimum Perl version. Typically 5.006.
+dnl
+AC_DEFUN([LLVM_PROG_PERL], [
+AC_PATH_PROG(PERL, [perl], [none])
+if test "$PERL" != "none"; then
+ AC_MSG_CHECKING(for Perl $1 or newer)
+ if $PERL -e 'use $1;' 2>&1 > /dev/null; then
+ AC_MSG_RESULT(yes)
+ else
+ PERL=none
+ AC_MSG_RESULT(not found)
+ fi
+fi
+])
+