From 9f73064e09cc22326c876c2e493b9994b027db27 Mon Sep 17 00:00:00 2001
From: Guilhem Moulin <guilhem@fripost.org>
Date: Wed, 23 Feb 2022 19:55:05 +0100
Subject: Makefile: Replace shell test with $(if ,,).

---
 Makefile | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 0c01999..6d5fd4f 100644
--- a/Makefile
+++ b/Makefile
@@ -69,12 +69,11 @@ $(HTML_FILES): $(builddir)/doc/%.html: $(srcdir)/doc/%.md $(HTML_TEMPLATE)
 	@mkdir -vp $(dir $@)
 	mtime="$$(git -C $(srcdir) --no-pager log -1 --pretty="format:%ct" -- "$<" 2>/dev/null)"; \
 	[ -n "$$mtime" ] || mtime="$$(date +%s -r "$<")"; \
-	[ "$<" = "doc/index.md" ] && parent="" || parent="./index.html"; \
 	pandoc -sp -f markdown -t html+smart --css=$(CSS) --template=$(HTML_TEMPLATE) \
 		--variable=date:"$$(LC_TIME=C date +"Last modified on %a, %d %b %Y at %T %z" -d @"$$mtime")" \
 		--variable=keywords:"interimap" \
 		--variable=lang:"en" \
-		--variable=parent:"$$parent" \
+		--variable=parent:"$(if $(filter $@,$(builddir)/doc/index.html),,./index.html)" \
 		--output="$@" -- "$<"
 
 INSTALL ?= install
-- 
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