Prepare for building from llvm-top. Unfortunately, this doesn't work because

of the cyclic depndency between llvm and llvm-gcc-4-0.

llvm-svn: 39910

2 files changed, 34 insertions, 4 deletions

diff --git a/llvm/ModuleInfo.txt b/llvm/ModuleInfo.txt
index a325c76a622..022e5a79fcb 100644
--- a/llvm/ModuleInfo.txt
+++ b/llvm/ModuleInfo.txt
@@ -1,4 +1,2 @@
-DepModule:
-ConfigCmd: ./configure --prefix=@INSTALL_PREFIX@ --with-llvmgccdir=@LLVM_TOP@/install
-ConfigFile: ./config.status
-BuildCmd: make build-for-llvm-top LLVM_TOP=@LLVM_TOP@
+DepModule: llvm-gcc-4-0
+BuildCmd: build-for-llvm-top.sh
diff --git a/llvm/build-for-llvm-top.sh b/llvm/build-for-llvm-top.sh
new file mode 100644
index 00000000000..13d90a416b8
--- /dev/null
+++ b/llvm/build-for-llvm-top.sh
@@ -0,0 +1,32 @@
+#!/bin/sh
+
+is_debug=1
+for arg in "$@" ; do
+  case "$arg" in
+    LLVM_TOP=*)
+      LLVM_TOP=`echo "$arg" | sed -e 's/LLVM_TOP=//'`
+      ;;
+    PREFIX=*)
+      PREFIX=`echo "$arg" | sed -e 's/PREFIX=//'`
+      ;;
+    *=*)
+      build_opts="$build_opts $arg"
+      ;;
+    --*)
+      config_opts="$config_opts $arg"
+      ;;
+  esac
+done
+
+# See if we have previously been configured by sensing the presense
+# of the config.status scripts
+config_status="$build_dir/config.status"
+if test ! -d "$config_status" ; then
+  # We must configure so build a list of configure options
+  config_options="--prefix=$PREFIX --with-llvmgccdir=$PREFIX"
+  echo ./configure $config_options $config_opts
+  ./configure $config_options $config_opts
+fi
+
+echo make $build_opts '&&' make install $build_opts
+make $build_opts && make install $build_opts