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-rw-r--r--docs/markdown/Reference-manual.md4
-rw-r--r--docs/markdown/snippets/configure_file_output_format.md14
2 files changed, 18 insertions, 0 deletions
diff --git a/docs/markdown/Reference-manual.md b/docs/markdown/Reference-manual.md
index 4e916fb..0c54de0 100644
--- a/docs/markdown/Reference-manual.md
+++ b/docs/markdown/Reference-manual.md
@@ -208,6 +208,10 @@ the `@variable@` syntax.
`@PLAINNAME@` or `@BASENAME@` substitutions). In configuration mode,
the permissions of the input file (if it is specified) are copied to
the output file.
+- `output_format` *(added 0.47.0)* the format of the output to generate when no input
+ was specified. It defaults to `c`, in which case preprocessor directives
+ will be prefixed with `#`, you can also use `nasm`, in which case the
+ prefix will be `%`.
### custom_target()
diff --git a/docs/markdown/snippets/configure_file_output_format.md b/docs/markdown/snippets/configure_file_output_format.md
new file mode 100644
index 0000000..e522885
--- /dev/null
+++ b/docs/markdown/snippets/configure_file_output_format.md
@@ -0,0 +1,14 @@
+## New keyword argument `output_format` for configure_file()
+
+When called without an input file, `configure_file` generates a
+C header file by default. A keyword argument was added to allow
+specifying the output format, for example for use with nasm or yasm:
+
+```
+conf = configuration_data()
+conf.set('FOO', 1)
+
+configure_file('config.asm',
+ configuration: conf,
+ output_format: 'nasm')
+```