[cmake] convert warnings into errors if a conflict is found

Author: ferdymercury

cmake/modules/SearchInstalledSoftware.cmake

@@ -644,7 +644,7 @@ if(mathmore OR builtin_gsl OR (tmva-cpu AND use_gsl_cblas))
     set(GSL_INCLUDE_DIR ${CMAKE_BINARY_DIR}/GSL-prefix/src/GSL-build)
     set(GSL_FOUND ON)
     if(NOT mathmore)
-      message(WARNING "builtin_gls was enabled but mathmore wasn't")
+      message(FATAL_ERROR "builtin_gls was enabled, conflict with mathmore=OFF")
     endif()
   endif()
 endif()
@@ -932,7 +932,7 @@ if(fftw3)
 endif()
 if(builtin_fftw3)
   if(NOT fftw3)
-    message(WARNING "fftw3 is OFF, hence ignoring the activated setting 'builtin_fftw3'")
+    message(FATAL_ERROR "fftw3 is OFF, conflict with the activated setting 'builtin_fftw3'")
   else()
     set(FFTW_VERSION 3.3.8)
     message(STATUS "Downloading and building FFTW version ${FFTW_VERSION}")
@@ -961,7 +961,7 @@ if(fitsio OR builtin_cfitsio)
   endif()
   if(builtin_cfitsio)
     if(NOT fitsio)
-       message(WARNING "fitsio is OFF, hence ignoring the activated setting 'builtin_cfitsio'")
+       message(FATAL_ERROR "fitsio is OFF, conflict with the activated setting 'builtin_cfitsio'")
     else()
       add_library(CFITSIO::CFITSIO STATIC IMPORTED GLOBAL)
       add_subdirectory(builtins/cfitsio)
@@ -1027,7 +1027,7 @@ endif()
 
 if(builtin_xrootd)
   if(NOT xrootd)
-    message(WARNING "xrootd is OFF, hence ignoring the activated setting 'builtin_xrootd'")
+    message(FATAL_ERROR "xrootd is OFF, conflict with the activated setting 'builtin_xrootd'")
   else()
     ROOT_CHECK_CONNECTION("builtin_xrootd=OFF")
     if(NO_CONNECTION)
@@ -1201,7 +1201,7 @@ endif()
 
 if(builtin_davix)
   if(NOT davix)
-    message(WARNING "davix is OFF, hence ignoring the activated setting 'builtin_davix'")
+    message(FATAL_ERROR "davix is OFF, conflict with the activated setting 'builtin_davix'")
   else()
     ROOT_CHECK_CONNECTION("builtin_davix=OFF")
     if(NO_CONNECTION)
@@ -1306,7 +1306,7 @@ endif()
 
 if(builtin_tbb)
   if(NOT imt)
-    message(WARNING "imt is OFF, hence ignoring the activated setting 'builtin_tbb'")
+    message(FATAL_ERROR "imt is OFF, conflict with the activated setting 'builtin_tbb'")
   else()
     ROOT_CHECK_CONNECTION("builtin_tbb=OFF")
     if(NO_CONNECTION)
@@ -1391,7 +1391,7 @@ endif()
 #---Check for Vc---------------------------------------------------------------------
 if(builtin_vc)
   if(NOT vc)
-    message(WARNING "vc is OFF, hence ignoring the activated setting 'builtin_vc'")
+    message(FATAL_ERROR "vc is OFF, conflict with the activated setting 'builtin_vc'")
   else()
     unset(Vc_FOUND)
     unset(Vc_FOUND CACHE)
@@ -1515,7 +1515,7 @@ endif()
 
 if(builtin_veccore)
   if(NOT veccore)
-    message(WARNING "veccore is OFF, hence ignoring the activated setting 'builtin_veccore'")
+    message(FATAL_ERROR "veccore is OFF, conflict with the activated setting 'builtin_veccore'")
   else()
     set(VecCore_VERSION "0.8.2")
     set(VecCore_PROJECT "VecCore-${VecCore_VERSION}")
@@ -1607,7 +1607,7 @@ if(vdt OR builtin_vdt)
   endif()
   if(builtin_vdt)
     if(NOT vdt)
-      message(WARNING "vdt is OFF, hence ignoring the activated setting 'builtin_vdt'")
+      message(FATAL_ERROR "vdt is OFF, conflict with the activated setting 'builtin_vdt'")
     else()
       set(vdt_version 0.4.6)
       set(VDT_FOUND True)