LLVMC can be now compiled w/o dynamic plugin support.

Controlled via the --enable-llvmc-dynamic-plugins option.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74784 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index 3812222..6b3c4ca 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -605,12 +605,23 @@
 --enable-llvmc-dynamic,
 [Link LLVMC dynamically (default is NO, unless on Win32)]),,
 enableval=$llvmc_dynamic)
-if test ${enableval} = "yes" && test "$ENABLE_PIC" -eq 1; then
+if test ${enableval} = "yes" && test "$ENABLE_PIC" -eq 1 ; then
    AC_SUBST(ENABLE_LLVMC_DYNAMIC,[[ENABLE_LLVMC_DYNAMIC=1]])
 else
    AC_SUBST(ENABLE_LLVMC_DYNAMIC,[[]])
 fi
 
+dnl --enable-llvmc-dynamic-plugins : should LLVMC support dynamic plugins?
+AC_ARG_ENABLE(llvmc-dynamic-plugins,AS_HELP_STRING(
+--enable-llvmc-dynamic-plugins,
+[Enable dynamic LLVMC plugins (default is YES)]),,
+enableval=yes)
+if test ${enableval} = "yes" ; then
+   AC_SUBST(ENABLE_LLVMC_DYNAMIC_PLUGINS,[[ENABLE_LLVMC_DYNAMIC_PLUGINS=1]])
+else
+   AC_SUBST(ENABLE_LLVMC_DYNAMIC_PLUGINS,[[]])
+fi
+
 dnl===-----------------------------------------------------------------------===
 dnl===
 dnl=== SECTION 4: Check for programs we need and that they are the right version