More things copilot found.

Author: larshg

features/include/pcl/features/intensity_gradient.h

@@ -80,8 +80,8 @@ namespace pcl
       inline void
       setNumberOfThreads(unsigned int num_threads = 0)
       {
-#ifdef _OPENMP num_threads_ =
-            num_threads != 0 ? num_threads : omp_get_num_procs();
+#ifdef _OPENMP
+        num_threads_ = num_threads != 0 ? num_threads : omp_get_num_procs();
 #else
         if (num_threads_ != 1) {
           PCL_WARN(

filters/include/pcl/filters/convolution.h

@@ -126,8 +126,8 @@ namespace pcl
         inline void
         setNumberOfThreads(unsigned int num_threads = 0)
         {
-#ifdef _OPENMP num_threads_ =
-              num_threads != 0 ? num_threads : omp_get_num_procs();
+#ifdef _OPENMP
+          num_threads_ = num_threads != 0 ? num_threads : omp_get_num_procs();
 #else
           if (num_threads_ != 1) {
             PCL_WARN(