summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--Modules/Compiler/GNU-Fortran.cmake3
1 files changed, 3 insertions, 0 deletions
diff --git a/Modules/Compiler/GNU-Fortran.cmake b/Modules/Compiler/GNU-Fortran.cmake
index dfd79274d9..e9c8a594ab 100644
--- a/Modules/Compiler/GNU-Fortran.cmake
+++ b/Modules/Compiler/GNU-Fortran.cmake
@@ -8,5 +8,8 @@ set(CMAKE_Fortran_FORMAT_FREE_FLAG "-ffree-form")
set(CMAKE_Fortran_FLAGS_MINSIZEREL_INIT "-Os")
set(CMAKE_Fortran_FLAGS_RELEASE_INIT "-O3")
+# No -isystem for Fortran because it will not find .mod files.
+unset(CMAKE_INCLUDE_SYSTEM_FLAG_Fortran)
+
# Fortran-specific feature flags.
set(CMAKE_Fortran_MODDIR_FLAG -J)