CMake: Fix CMAKE_C_FLAGS when WITH_OPENMP=ON

`CMAKE_C_FLAGS` was set to the value of `CMAKE_CXX_FLAGS` when `WITH_OPENMP=ON`
DGtal-team · May 26, 2020 · 53f6627 · 53f6627
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commit 53f6627
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diff --git a/ChangeLog.md b/ChangeLog.md
@@ -95,6 +95,8 @@
   Coeurjolly, [#1436](https://github.com/DGtal-team/DGtal/pull/1436))
   - Fixing Travis configuration due to syntax changes in v2
     (Roland Denis, [#1465](https://github.com/DGtal-team/DGtal/pull/1465))
+  - Fix `CMAKE_C_FLAGS` when `WITH_OPENMP=ON`
+    (Pablo Hernandez-Cerdan, [#1495](https://github.com/DGtal-team/DGtal/pull/1495))
 
 - *Mathematics*
   - Put SimpleMatrix * scalar operation in DGtal namespace (Jacques-Olivier Lachaud,

diff --git a/cmake/CheckDGtalOptionalDependencies.cmake b/cmake/CheckDGtalOptionalDependencies.cmake
@@ -362,7 +362,7 @@ IF(WITH_OPENMP)
   IF(OPENMP_FOUND)
     SET(OPENMP_FOUND_DGTAL 1)
     SET(CMAKE_CXX_FLAGS  "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")
-    SET(CMAKE_C_FLAGS  "${CMAKE_CXX_FLAGS} ${OpenMP_C_FLAGS}")
+    SET(CMAKE_C_FLAGS  "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS}")
     set(DGtalLibDependencies ${DGtalLibDependencies} ${OpenMP_CXX_LIBRARIES})
     ADD_DEFINITIONS("-DWITH_OPENMP ")
     message(STATUS "OpenMP found. Libs: ${OpenMP_CXX_LIBRARIES}")