Use `#embed` to embed the changelog in the binary and give access via

--changelog

3 files changed, 19 insertions, 1 deletions

diff --git a/docs/tomo.1.md b/docs/tomo.1.md
index 4207de6a..3bf5e779 100644
--- a/docs/tomo.1.md
+++ b/docs/tomo.1.md
@@ -62,6 +62,9 @@ C code, which is then compiled using a C compiler of your choice.
 `--version`
 : Print the compiler version and exit.
 
+`--changelog`
+: Print the compiler change log and exit.
+
 `--prefix`
 : Print the Tomo installation prefix and exit.
 
diff --git a/man/man1/tomo.1 b/man/man1/tomo.1
index 4b4f16bd..c3330175 100644
--- a/man/man1/tomo.1
+++ b/man/man1/tomo.1
@@ -60,6 +60,9 @@ Print extra verbose output.
 \f[B]\-\-version\f[R]
 Print the compiler version and exit.
 .TP
+\f[B]\-\-changelog\f[R]
+Print the compiler change log and exit.
+.TP
 \f[B]\-\-prefix\f[R]
 Print the Tomo installation prefix and exit.
 .TP
diff --git a/src/tomo.c b/src/tomo.c
index 187495ce..cf3508bd 100644
--- a/src/tomo.c
+++ b/src/tomo.c
@@ -71,7 +71,8 @@ static OptionalBool_t verbose = false,
                       compile_exe = false,
                       should_install = false,
                       clean_build = false,
-                      source_mapping = true;
+                      source_mapping = true,
+                      show_changelog = false;
 
 static OptionalText_t 
             show_codegen = NONE_TEXT,
@@ -96,6 +97,11 @@ static Text_t config_summary,
               // of that directory.
               as_owner = Text("");
 
+static const char changelog[] = {
+#embed "../CHANGES.md"
+    , 0
+};
+
 static void transpile_header(env_t *base_env, Path_t path);
 static void transpile_code(env_t *base_env, Path_t path);
 static void compile_object_file(Path_t path);
@@ -214,6 +220,7 @@ int main(int argc, char *argv[])
         {"f", false, &Bool$info, &clean_build},
         {"source-mapping", false, &Bool$info, &source_mapping},
         {"m", false, &Bool$info, &source_mapping},
+        {"changelog", false, &Bool$info, &show_changelog},
     );
 
     if (show_prefix) {
@@ -221,6 +228,11 @@ int main(int argc, char *argv[])
         return 0;
     }
 
+    if (show_changelog) {
+        print_inline(changelog);
+        return 0;
+    }
+
     bool is_gcc = (system(String(cc, " -v 2>&1 | grep -q 'gcc version'")) == 0);
     if (is_gcc) {
         cflags = Texts(cflags, Text(" -fsanitize=signed-integer-overflow -fno-sanitize-recover"