more verbose error message on error

[simgrid.git] / buildtools / Cmake / CompleteInFiles.cmake

diff --git a/buildtools/Cmake/CompleteInFiles.cmake b/buildtools/Cmake/CompleteInFiles.cmake
index ff67e27..36a0967 100644 (file)
--- a/buildtools/Cmake/CompleteInFiles.cmake
+++ b/buildtools/Cmake/CompleteInFiles.cmake
@@ -447,7 +447,8 @@ IF(CMAKE_CROSSCOMPILING)
 ELSE()
   file(REMOVE "${CMAKE_BINARY_DIR}/testprog*")
   file(REMOVE ${CMAKE_BINARY_DIR}/conftestval)
-  execute_process(COMMAND ${CMAKE_C_COMPILER} ${CMAKE_HOME_DIRECTORY}/buildtools/Cmake/test_prog/prog_AC_CHECK_MCSC.c ${mcsc_flags} -o testprog
+  set(MCSC_buildcmd ${CMAKE_C_COMPILER} ${CMAKE_HOME_DIRECTORY}/buildtools/Cmake/test_prog/prog_AC_CHECK_MCSC.c ${mcsc_flags} -o testprog)
+  execute_process(COMMAND ${MCSC_buildcmd}
   WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/
   OUTPUT_VARIABLE COMPILE_mcsc_VAR ERROR_VARIABLE COMPILE_mcsc_VAR)
 
@@ -457,7 +458,7 @@ ELSE()
     WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/
     OUTPUT_VARIABLE var_compil)
   else()
-    message(STATUS "prog_AC_CHECK_MCSC.c is not compilable:\n${COMPILE_mcsc_VAR}")
+    message(STATUS "prog_AC_CHECK_MCSC.c is not compilable. \nBuild command: ${MCSC_buildcmd}\n$Output\n{COMPILE_mcsc_VAR}")
   endif()
   file(REMOVE "${CMAKE_BINARY_DIR}/testprog*")