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-rw-r--r--m4/__base.m47
-rw-r--r--m4/foot.m411
-rw-r--r--m4/head.m41
-rw-r--r--m4/include.m43
4 files changed, 22 insertions, 0 deletions
diff --git a/m4/__base.m4 b/m4/__base.m4
new file mode 100644
index 0000000..611a256
--- /dev/null
+++ b/m4/__base.m4
@@ -0,0 +1,7 @@
+m4_dnl To avoid annoying conflicts with quote characters, use
+m4_dnl U+2068 FIRST STRONG ISOLATE and U+2069 POP DIRECTIONAL ISOLATE
+m4_changequote(⁨,⁩)
+
+m4_dnl We also need to avoid the comment character ever doing absolutely
+m4_dnl anything, so set it to U+FFFD REPLACEMENT CHARACTER
+m4_changecom(�)
diff --git a/m4/foot.m4 b/m4/foot.m4
new file mode 100644
index 0000000..243a84b
--- /dev/null
+++ b/m4/foot.m4
@@ -0,0 +1,11 @@
+m4_define(FOOT, ⁨
+ m4_define(⁨__HASH⁩, m4_esyscmd(
+ git rev-list --max-count=1 ⁨HEAD⁩ m4___file__
+ ))
+ m4_define(⁨__DATE⁩, m4_esyscmd(
+ git log --max-count=1 --pretty='format:%cI' m4___file__ \
+ | xargs --no-run-if-empty -- date '+%-d %B %Y (%A) — %T %Z' --date \
+ | ifne -n echo 'No commit yet…'
+ ))
+ m4_include(foot.gsp)
+⁩)
diff --git a/m4/head.m4 b/m4/head.m4
new file mode 100644
index 0000000..9161929
--- /dev/null
+++ b/m4/head.m4
@@ -0,0 +1 @@
+m4_define(HEAD, ⁨m4_include(head.gsp)⁩)
diff --git a/m4/include.m4 b/m4/include.m4
new file mode 100644
index 0000000..ef22bf1
--- /dev/null
+++ b/m4/include.m4
@@ -0,0 +1,3 @@
+m4_dnl Exactly the same as m4_include, but following the same naming conventions
+m4_dnl as the other macros I create.
+m4_define(INCLUDE, ⁨m4_include($1)⁩)