From c19f3908ab5b18387e31b53ed6ac279daa9b4695 Mon Sep 17 00:00:00 2001
From: Adam Chlipala <adam@chlipala.net>
Date: Wed, 19 Dec 2018 10:55:37 -0500
Subject: Follow-up to #146: configure tests if ICU is available

---
 configure.ac | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 696aac84..7e069d0f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -91,6 +91,18 @@ if test [-z $SQHEADER]; then
    SQHEADER=sqlite3.h
 fi
 
+if test [-z $ICU_INCLUDES]; then
+   ICU_INCLUDES=
+fi
+
+if test [-z $ICU_LIBS]; then
+   ICU_LIBS=
+fi
+
+AC_CHECK_HEADERS([unicode/utypes.h],
+                 [],
+                 [echo "You must install ICU."; exit 1])
+
 if test [$WORKING_VERSION = "1"]; then
    VERSION="$VERSION + `git log -1 --format="%H" || echo ?`"
 fi
@@ -152,6 +164,8 @@ Ur/Web configuration:
   Postgres C header:   PGHEADER       $PGHEADER
   MySQL C header:      MSHEADER       $MSHEADER
   SQLite C header:     SQHEADER       $SQHEADER
+  ICU includes:        ICU_INCLUDES   $ICU_INCLUDES
+  ICU libs:            ICU_LIBS       $ICU_LIBS
   OpenSSL:             OPENSSL_LIBS   $OPENSSL_LIBS
   pthreads:            PTHREAD_CFLAGS $PTHREAD_CFLAGS
                        PTHREAD_LIBS   $PTHREAD_LIBS
-- 
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