From: Javier Viguera <javier.viguera@digi.com>
Date: Mon, 20 Mar 2017 20:14:09 +0100
Subject: [PATCH] CMakeLists: add option to build without ICU support

Signed-off-by: Javier Viguera <javier.viguera@digi.com>

---
 CMakeLists.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 366c285edd1a..ab7eac96e70d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -126,6 +126,8 @@ endif()
 # libicu is highly recommended for RSCALE support
 #  libicu can be found at http://www.icu-project.org
 #  RSCALE info at http://tools.ietf.org/html/rfc7529
+option(WITH_LIBICU "Build with ICU support. Libicu is highly recommended for RSCALE support")
+if(WITH_LIBICU)
 find_package(ICU)
 if(ICU_FOUND)
   set(ICUUC_LIBS "-licuuc") #for libical.pc
@@ -140,6 +142,7 @@ if(ICU_I18N_FOUND)
   set(HAVE_LIBICU_I18N 1)
   set(ICUI18N_LIBS "-licui18n") #for libical.pc
 endif()
+endif()
 
 # MSVC specific definitions
 if(WIN32)