Check for rt and pthread libraries before linking

This fixes building on Android which does not have separate librt or libpthread libraries. Signed-off-by: Fredrik Fornwall <[email protected]>
eclipse · Feb 20, 2017 · 35cc1eb · 35cc1eb
1 parent 2c92d3b
commit 35cc1eb
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Showing 2 changed files with 15 additions and 3 deletions.
diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
@@ -7,7 +7,12 @@ if (${WITH_THREADING} STREQUAL ON)
  set (PTHREAD_LIBRARIES C:\\pthreads\\Pre-built.2\\lib\\x86\\pthreadVC2.lib)
  set (PTHREAD_INCLUDE_DIR C:\\pthreads\\Pre-built.2\\include)
  else (WIN32)
- set (PTHREAD_LIBRARIES pthread)
+ find_library(LIBPTHREAD pthread)
+ if (LIBPTHREAD)
+ set (PTHREAD_LIBRARIES pthread)
+ else (LIBPTHREAD)
+ set (PTHREAD_LIBRARIES "")
+ endif()
  set (PTHREAD_INCLUDE_DIR "")
  endif (WIN32)
 else (${WITH_THREADING} STREQUAL ON)
@@ -44,7 +49,10 @@ add_library(libmosquitto SHARED
 set (LIBRARIES ${OPENSSL_LIBRARIES} ${PTHREAD_LIBRARIES})
 
 if (UNIX AND NOT APPLE)
- set (LIBRARIES ${LIBRARIES} rt)
+ find_library(LIBRT rt)
+ if (LIBRT)
+ set (LIBRARIES ${LIBRARIES} rt)
+ endif (LIBRT)
 endif (UNIX AND NOT APPLE)
 
 if (WIN32)

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
@@ -86,7 +86,11 @@ if (UNIX)
  if (APPLE)
  set (MOSQ_LIBS ${MOSQ_LIBS} dl m)
  else (APPLE)
- set (MOSQ_LIBS ${MOSQ_LIBS} rt dl m)
+ set (MOSQ_LIBS ${MOSQ_LIBS} dl m)
+ find_library(LIBRT rt)
+ if (LIBRT)
+ set (MOSQ_LIBS ${MOSQ_LIBS} rt)
+ endif (LIBRT)
  endif (APPLE)
 endif (UNIX)