4 files changed, 36 insertions, 12 deletions
diff --git a/src/libexpr/flake/meson.build b/src/libexpr/flake/meson.build
new file mode 100644
index 000000000..3ecc30f4e
--- /dev/null
+++ b/src/libexpr/flake/meson.build
@@ -0,0 +1,8 @@
+libexpr_generated_headers += custom_target(
+  command : [ 'bash', '-c', 'echo \'R"__NIX_STR(\' | cat - @INPUT@ && echo \')__NIX_STR"\'' ],
+  input : 'call-flake.nix',
+  output : '@PLAINNAME@.gen.hh',
+  capture : true,
+  install : true,
+  install_dir : includedir / 'nix/flake',
+)
diff --git a/src/libexpr/meson.build b/src/libexpr/meson.build
index e0449ab4e..7c0555f8f 100644
--- a/src/libexpr/meson.build
+++ b/src/libexpr/meson.build
@@ -49,10 +49,20 @@ meson.add_install_script(
   '@0@'.format(includedir),
 )
 
-imported_drv_to_derivation_gen = gen_header.process('imported-drv-to-derivation.nix')
-fetchurl_gen = gen_header.process('fetchurl.nix')
-derivation_gen = gen_header.process('primops/derivation.nix', preserve_path_from : meson.current_source_dir())
-call_flake_gen = gen_header.process('flake/call-flake.nix')
+libexpr_generated_headers = [
+  gen_header.process('primops/derivation.nix', preserve_path_from : meson.current_source_dir()),
+]
+foreach header : [ 'imported-drv-to-derivation.nix', 'fetchurl.nix' ]
+  libexpr_generated_headers += custom_target(
+    command : [ 'bash', '-c', 'echo \'R"__NIX_STR(\' | cat - @INPUT@ && echo \')__NIX_STR"\'' ],
+    input : header,
+    output : '@PLAINNAME@.gen.hh',
+    capture : true,
+    install : true,
+    install_dir : includedir / 'nix',
+  )
+endforeach
+subdir('flake')
 
 libexpr_sources = files(
   'attr-path.cc',
@@ -121,10 +131,7 @@ libexpr = library(
   libexpr_sources,
   parser_tab,
   lexer_tab,
-  imported_drv_to_derivation_gen,
-  fetchurl_gen,
-  derivation_gen,
-  call_flake_gen,
+  libexpr_generated_headers,
   dependencies : [
     liblixutil,
     liblixstore,
diff --git a/src/libstore/meson.build b/src/libstore/meson.build
index c4b12f61e..29dbc5e70 100644
--- a/src/libstore/meson.build
+++ b/src/libstore/meson.build
@@ -1,5 +1,14 @@
-schema_sql_gen = gen_header.process('schema.sql')
-ca_specific_schema_gen = gen_header.process('ca-specific-schema.sql')
+libstore_generated_headers = []
+foreach header : [ 'schema.sql', 'ca-specific-schema.sql' ]
+  libstore_generated_headers += custom_target(
+    command : [ 'bash', '-c', 'echo \'R"__NIX_STR(\' | cat - @INPUT@ && echo \')__NIX_STR"\'' ],
+    input : header,
+    output : '@PLAINNAME@.gen.hh',
+    capture : true,
+    install : true,
+    install_dir : includedir / 'nix',
+  )
+endforeach
 
 libstore_sources = files(
   'binary-cache-store.cc',
@@ -157,8 +166,7 @@ endforeach
 
 libstore = library(
   'nixstore',
-  schema_sql_gen,
-  ca_specific_schema_gen,
+  libstore_generated_headers,
   libstore_sources,
   dependencies : [
     libarchive,
diff --git a/src/libutil/meson.build b/src/libutil/meson.build
index 8e4b5211d..c0dd1aa2b 100644
--- a/src/libutil/meson.build
+++ b/src/libutil/meson.build
@@ -35,6 +35,7 @@ libutil_headers = files(
   'abstract-setting-to-json.hh',
   'ansicolor.hh',
   'archive.hh',
+  'args/root.hh',
   'args.hh',
   'box_ptr.hh',
   'callback.hh',