From 7fe1b8a53cc8c865c2a10dcd8f6cb4e51ccc6300 Mon Sep 17 00:00:00 2001
From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Date: Mon, 29 Jul 2019 12:19:10 +0200
Subject: [PATCH] configure.ac: add an option to disable tests

Add an option to allow the user to disable tests, this can be useful for
example when the toolchain does not provide thread. Indeed, in this
case, libgcrypt fails to build t-lock:

t-lock.c: In function 'run_test':
t-lock.c:359:3: error: unknown type name 'pthread_t'
   pthread_t rthread;

Fixes:
 - http://autobuild.buildroot.org/results/50a8ba572e3fafd3c6a39bd54bcfcaf78b5ad325

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
---
 Makefile.am  |  7 ++++++-
 configure.ac | 10 ++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/Makefile.am b/Makefile.am
index 7fa4fa4d..f0bd90e4 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -40,9 +40,14 @@ else
 doc =
 endif
 
+if BUILD_TESTS
+tests = tests
+else
+tests =
+endif
 
 DIST_SUBDIRS = m4 compat mpi cipher random src doc tests
-SUBDIRS =         compat mpi cipher random src $(doc) tests
+SUBDIRS =         compat mpi cipher random src $(doc) $(tests)
 
 EXTRA_DIST = autogen.sh autogen.rc README.GIT LICENSES      	           \
              ChangeLog-2011 build-aux/ChangeLog-2011 doc/ChangeLog-2011    \
diff --git a/configure.ac b/configure.ac
index e8c8cd39..1a6b61e5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3198,6 +3198,16 @@ AC_ARG_ENABLE([doc], AC_HELP_STRING([--disable-doc],
 AM_CONDITIONAL([BUILD_DOC], [test "x$build_doc" != xno])
 
 
+#
+# Option to disable building of tests
+#
+build_tests=yes
+AC_ARG_ENABLE([tests], AC_HELP_STRING([--disable-tests],
+                                      [do not build tests]),
+                       build_tests=$enableval, build_tests=yes)
+AM_CONDITIONAL([BUILD_TESTS], [test "x$build_tests" != xno])
+
+
 #
 # Provide information about the build.
 #
-- 
2.20.1