From 403bf9b1b41c3f7ce8a4cbb36ca3139e59ecc1f3 Mon Sep 17 00:00:00 2001
From: Bruno BELANYI <bruno@belanyi.fr>
Date: Tue, 29 Sep 2020 20:34:51 +0200
Subject: [PATCH] build: configure: check for Criterion

---
 configure.ac | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/configure.ac b/configure.ac
index c6a1ad9..0647ca6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -58,4 +58,22 @@ AC_CHECK_HEADERS(
     [AC_MSG_ERROR([GNU Argp is needed to parse arguments])]
 )
 
+# Check for Criterion
+PKG_CHECK_MODULES(
+    [CRITERION],
+    [criterion],
+    [HAVE_CRITERION=1],
+    [HAVE_CRITERION=0]
+)
+# Make a conditional
+AM_CONDITIONAL([USING_CRITERION], [test "$HAVE_CRITERION" -eq 1])
+# Substitute the defined flags
+AM_COND_IF(
+    [USING_CRITERION],
+    [AC_SUBST([CRITERION_CFLAGS]) AC_SUBST([CRITERION_LIBS])]
+)
+
+# Use Autotools TAP driver
+AC_REQUIRE_AUX_FILE([tap-driver.sh])
+
 AC_OUTPUT