From d38e0af8b61ebd1ce5748a878eeb6158d0229671 Mon Sep 17 00:00:00 2001
From: Ricardo Wurmus <rekado@elephly.net>
Date: Tue, 20 Dec 2022 13:15:05 +0100
Subject: Remove bootstrap.css and build CSS from SCSS sources.

---
 configure.ac | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 22bfb71..3fac7da 100644
--- a/configure.ac
+++ b/configure.ac
@@ -5,6 +5,23 @@ AC_CONFIG_AUX_DIR([build-aux])
 AM_INIT_AUTOMAKE([gnu color-tests -Wall -Wno-portability foreign])
 AM_SILENT_RULES([yes])
 
+dnl Check for required programmes and store their full path in the
+dnl given variables.  The variables are used to substitute
+dnl placeholders in the scripts.
+
+dnl The variables only need to be set manually when they cannot be
+dnl found via the PATH environment variable.
+AC_DEFUN([find_or_override_prog],
+[AC_ARG_VAR($1, override location of $2 executable)dnl
+AS_IF([test -z "$$1"],dnl
+      [AC_PATH_PROG([$1], [$2], no)dnl
+      if test x"$$1" == x"no" ; then
+        AC_MSG_ERROR([Could not find $2.])
+      fi
+      ],dnl
+      [AC_MSG_NOTICE([Using $$1 as $2 executable.])])])
+find_or_override_prog([SASSC], [sassc])
+
 GUILE_PKG([3.0 2.2])
 GUILE_PROGS
 if test "x$GUILD" = "x"; then
-- 
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