From 1c6758009e82c47b5b341d418be2be401ef31482 Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Fri, 6 Sep 2019 22:20:46 +0300
Subject: Add builtins support

---
 libbutl/buildfile | 40 ++++++++++++++++++++++++++++++++++++++--
 1 file changed, 38 insertions(+), 2 deletions(-)

(limited to 'libbutl/buildfile')

diff --git a/libbutl/buildfile b/libbutl/buildfile
index a0b789a..e6841ab 100644
--- a/libbutl/buildfile
+++ b/libbutl/buildfile
@@ -13,8 +13,11 @@
 #
 # @@ If/when going back to using mxx{}, make sure to cleanup explicit .mxx.
 #
-lib{butl}: {hxx ixx txx cxx}{** -uuid-* +uuid-io -win32-utility -version} \
-           hxx{**.mxx} {hxx}{version}
+lib{butl}: {hxx ixx txx cxx}{** -uuid-* +uuid-io            \
+                                -win32-utility              \
+                                -version                    \
+                                -builtin-options}           \
+  hxx{**.mxx} {hxx}{version} {hxx ixx cxx}{builtin-options}
 
 tclass = $cxx.target.class
 tsys   = $cxx.target.system
@@ -93,6 +96,39 @@ if $version.pre_release
 else
   lib{butl}: bin.lib.version = @"-$version.major.$version.minor"
 
+# Generated options parser.
+#
+if $cli.configured
+{
+  cli.cxx{builtin-options}: cli{builtin}
+
+  cli.options += --std c++11 -I $src_root --include-with-brackets \
+--include-prefix libbutl --guard-prefix LIBBUTL --cli-namespace butl::cli \
+--generate-vector-scanner --generate-parse --keep-separator \
+--generate-specifier --suppress-usage
+
+  cli.cxx{*}:
+  {
+    # Include the generated cli files into the distribution and don't remove
+    # them when cleaning in src (so that clean results in a state identical to
+    # distributed). But don't install their headers since they are only used
+    # internally in the builtins implementation.
+    #
+    dist  = true
+    clean = ($src_root != $out_root)
+    install = false
+
+    # We keep the generated code in the repository so copy it back to src in
+    # case of a forwarded configuration.
+    #
+    backlink = overwrite
+  }
+}
+else
+  # No install for the pre-generated case.
+  #
+  hxx{builtin-options}@./ ixx{builtin-options}@./: install = false
+
 # Install into the libbutl/ subdirectory of, say, /usr/include/
 # recreating subdirectories.
 #
-- 
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