From d6a87e47a99f91f0a03417992a3263ae486e8a52 Mon Sep 17 00:00:00 2001
From: Thomas Li Fredriksen <thomas@continyou.no>
Date: Wed, 8 Nov 2017 12:40:29 +0100
Subject: [PATCH] Fixed examples linker issue (missing pthread link). Added two
 cmake-options GATTLIB_BUILD_EXAMPLES and GATTLIB_SHARED_LIB

---
 CMakeLists.txt                       | 23 ++++++++++++++---------
 bluez/CMakeLists.txt                 | 13 +++++++++----
 examples/discover/CMakeLists.txt     |  2 +-
 examples/gatttool/CMakeLists.txt     |  2 +-
 examples/nordic_uart/CMakeLists.txt  |  2 +-
 examples/notification/CMakeLists.txt |  2 +-
 examples/read_write/CMakeLists.txt   |  2 +-
 7 files changed, 28 insertions(+), 18 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index ebf1d52..466563d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -27,6 +27,9 @@ include(CrossCompilation.cmake)
 
 project(gattlib)
 
+option(GATTLIB_BUILD_EXAMPLES "Build GattLib examples" YES)
+option(GATTLIB_SHARED_LIB "Build GattLib as a shared library" YES)
+
 find_package(PkgConfig REQUIRED)
 
 # Show all the warnings
@@ -77,16 +80,18 @@ configure_file(dbus/gattlib.pc.in ${PROJECT_BINARY_DIR}/gattlib.pc @ONLY)
 # Add the build directory to PKG_CONFIG_PATH
 set(ENV{PKG_CONFIG_PATH} "${PROJECT_BINARY_DIR}:$ENV{PKG_CONFIG_PATH}")
 
-# Examples
-add_subdirectory(examples/ble_scan)
-add_subdirectory(examples/discover)
-add_subdirectory(examples/read_write)
-add_subdirectory(examples/notification)
-add_subdirectory(examples/nordic_uart)
+if(GATTLIB_BUILD_EXAMPLES)
+  # Examples
+  add_subdirectory(examples/ble_scan)
+  add_subdirectory(examples/discover)
+  add_subdirectory(examples/read_write)
+  add_subdirectory(examples/notification)
+  add_subdirectory(examples/nordic_uart)
 
-# Some examples require Bluez code and other DBus support
-if (NOT GATTLIB_DBUS)
-  add_subdirectory(examples/gatttool)
+  # Some examples require Bluez code and other DBus support
+  if (NOT GATTLIB_DBUS)
+    add_subdirectory(examples/gatttool)
+  endif()
 endif()
 
 #
diff --git a/bluez/CMakeLists.txt b/bluez/CMakeLists.txt
index e67d929..03893cf 100644
--- a/bluez/CMakeLists.txt
+++ b/bluez/CMakeLists.txt
@@ -98,7 +98,12 @@ else()
 endif()
 
 # gattlib
-add_library(gattlib SHARED ${gattlib_SRCS})
-target_link_libraries(gattlib ${gattlib_LIBS})
-
-install(TARGETS gattlib LIBRARY DESTINATION lib)
+if(GATTLIB_SHARED_LIB)
+  add_library(gattlib SHARED ${gattlib_SRCS})
+  target_link_libraries(gattlib ${gattlib_LIBS})
+  
+  install(TARGETS gattlib LIBRARY DESTINATION lib)
+else()
+  add_library(gattlib ${gattlib_SRCS})
+  target_link_libraries(gattlib ${gattlib_LIBS})
+endif()
diff --git a/examples/discover/CMakeLists.txt b/examples/discover/CMakeLists.txt
index c450979..be4c233 100644
--- a/examples/discover/CMakeLists.txt
+++ b/examples/discover/CMakeLists.txt
@@ -28,4 +28,4 @@ pkg_search_module(GATTLIB REQUIRED gattlib)
 set(discover_SRCS discover.c)
 
 add_executable(discover ${discover_SRCS})
-target_link_libraries(discover ${GATTLIB_LDFLAGS})
+target_link_libraries(discover ${GATTLIB_LDFLAGS} pthread)
diff --git a/examples/gatttool/CMakeLists.txt b/examples/gatttool/CMakeLists.txt
index 3819809..fc75b3c 100644
--- a/examples/gatttool/CMakeLists.txt
+++ b/examples/gatttool/CMakeLists.txt
@@ -51,4 +51,4 @@ endif()
 set(gatttool_SRCS gatttool.c interactive.c utils.c)
 
 add_executable(gatttool ${gatttool_SRCS})
-target_link_libraries(gatttool ${GATTLIB_LDFLAGS} ${GLIB_LDFLAGS} readline)
+target_link_libraries(gatttool ${GATTLIB_LDFLAGS} ${GLIB_LDFLAGS} readline pthread)
diff --git a/examples/nordic_uart/CMakeLists.txt b/examples/nordic_uart/CMakeLists.txt
index 533007a..ee12175 100644
--- a/examples/nordic_uart/CMakeLists.txt
+++ b/examples/nordic_uart/CMakeLists.txt
@@ -29,4 +29,4 @@ pkg_search_module(GATTLIB REQUIRED gattlib)
 set(nordic_uart_SRCS nordic_uart.c)
 
 add_executable(nordic_uart ${nordic_uart_SRCS})
-target_link_libraries(nordic_uart ${GATTLIB_LDFLAGS})
+target_link_libraries(nordic_uart ${GATTLIB_LDFLAGS} pthread)
diff --git a/examples/notification/CMakeLists.txt b/examples/notification/CMakeLists.txt
index 768859b..7a0747f 100644
--- a/examples/notification/CMakeLists.txt
+++ b/examples/notification/CMakeLists.txt
@@ -31,4 +31,4 @@ include_directories(${GLIB_INCLUDE_DIRS})
 set(notification_SRCS notification.c)
 
 add_executable(notification ${notification_SRCS})
-target_link_libraries(notification ${GATTLIB_LDFLAGS} ${GLIB_LDFLAGS})
+target_link_libraries(notification ${GATTLIB_LDFLAGS} ${GLIB_LDFLAGS} pthread)
diff --git a/examples/read_write/CMakeLists.txt b/examples/read_write/CMakeLists.txt
index 740becc..7eac946 100644
--- a/examples/read_write/CMakeLists.txt
+++ b/examples/read_write/CMakeLists.txt
@@ -29,4 +29,4 @@ pkg_search_module(GATTLIB REQUIRED gattlib)
 set(read_write_SRCS read_write.c)
 
 add_executable(read_write ${read_write_SRCS})
-target_link_libraries(read_write ${GATTLIB_LDFLAGS})
+target_link_libraries(read_write ${GATTLIB_LDFLAGS} pthread)