Only compile openmp code if explicitly requested.

4 files changed, 25 insertions, 8 deletions

diff --git a/src/tests/CMakeLists.txt b/src/tests/CMakeLists.txt
index a3aa1a0..486f135 100644
--- a/src/tests/CMakeLists.txt
+++ b/src/tests/CMakeLists.txt
@@ -24,13 +24,16 @@ if(TNG_BUILD_TEST)
 endif()
 
 if(TNG_BUILD_EXAMPLES)
-    if(OPENMP_FOUND)
+    if(TNG_USE_OPENMP AND OPENMP_FOUND)
+
         add_executable(md_openmp md_openmp.c)
         target_link_libraries(md_openmp tng_io ${OpenMP_LIBS})
         if(UNIX)
             target_link_libraries(md_openmp m)
         endif()
         set_property(TARGET md_openmp PROPERTY RUNTIME_OUTPUT_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/examples)
+        set_property(TARGET md_openmp APPEND PROPERTY COMPILE_DEFINITIONS TNG_BUILD_OPENMP_EXAMPLES)
+
 
         add_executable(md_openmp_util md_openmp_util.c)
         target_link_libraries(md_openmp_util tng_io ${OpenMP_LIBS})
@@ -38,6 +41,15 @@ if(TNG_BUILD_EXAMPLES)
             target_link_libraries(md_openmp_util m)
         endif()
         set_property(TARGET md_openmp_util PROPERTY RUNTIME_OUTPUT_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/examples)
+        set_property(TARGET md_openmp_util APPEND PROPERTY COMPILE_DEFINITIONS TNG_BUILD_OPENMP_EXAMPLES)
+
+        add_executable(tng_parallel_read tng_parallel_read.c)
+        target_link_libraries(tng_parallel_read tng_io)
+        if(UNIX)
+            target_link_libraries(tng_parallel_read m)
+        endif()
+        set_property(TARGET tng_parallel_read PROPERTY RUNTIME_OUTPUT_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/examples)
+        set_property(TARGET tng_parallel_read APPEND PROPERTY COMPILE_DEFINITIONS TNG_BUILD_OPENMP_EXAMPLES)
     endif()
 
     add_executable(tng_io_read_pos tng_io_read_pos.c)
@@ -54,13 +66,6 @@ if(TNG_BUILD_EXAMPLES)
     endif()
     set_property(TARGET tng_io_read_pos_util PROPERTY RUNTIME_OUTPUT_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/examples)
 
-    add_executable(tng_parallel_read tng_parallel_read.c)
-    target_link_libraries(tng_parallel_read tng_io)
-    if(UNIX)
-        target_link_libraries(tng_parallel_read m)
-    endif()
-    set_property(TARGET tng_parallel_read PROPERTY RUNTIME_OUTPUT_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/examples)
-
     if(TNG_BUILD_FORTRAN)
         # This does not work due to a bug in CMake. Remove lines below if no fortran compiler is found.
         enable_language(Fortran OPTIONAL)
diff --git a/src/tests/md_openmp.c b/src/tests/md_openmp.c
index ff426c9..f9942ba 100644
--- a/src/tests/md_openmp.c
+++ b/src/tests/md_openmp.c
@@ -1,3 +1,5 @@
+#ifdef TNG_BUILD_OPENMP_EXAMPLES
+
 # include <stdlib.h>
 # include <stdio.h>
 # include <time.h>
@@ -835,3 +837,5 @@ void update ( int np, int nd, double pos[], double vel[], double f[],
 
     return;
 }
+
+#endif
diff --git a/src/tests/md_openmp_util.c b/src/tests/md_openmp_util.c
index 815ca4f..e883c65 100644
--- a/src/tests/md_openmp_util.c
+++ b/src/tests/md_openmp_util.c
@@ -1,3 +1,5 @@
+#ifdef TNG_BUILD_OPENMP_EXAMPLES
+
 # include <stdlib.h>
 # include <stdio.h>
 # include <time.h>
@@ -757,3 +759,5 @@ void update ( int np, int nd, float pos[], float vel[], float f[],
 
     return;
 }
+
+#endif
diff --git a/src/tests/tng_parallel_read.c b/src/tests/tng_parallel_read.c
index 17417d9..6e6994e 100644
--- a/src/tests/tng_parallel_read.c
+++ b/src/tests/tng_parallel_read.c
@@ -1,3 +1,5 @@
+#ifdef TNG_BUILD_OPENMP_EXAMPLES
+
 /* This code is part of the tng binary trajectory format.
  *
  *                      VERSION 1.0
@@ -181,3 +183,5 @@ default(none)
 
     return(0);
 }
+
+#endif