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-rw-r--r--Modules/Compiler/Intel-C.cmake4
1 files changed, 2 insertions, 2 deletions
diff --git a/Modules/Compiler/Intel-C.cmake b/Modules/Compiler/Intel-C.cmake
index b2ff50d94a..0efcbc20d1 100644
--- a/Modules/Compiler/Intel-C.cmake
+++ b/Modules/Compiler/Intel-C.cmake
@@ -21,9 +21,9 @@ endif()
if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 12.1)
set(CMAKE_C90_STANDARD_COMPILE_OPTION "${_std}=c89")
- set(CMAKE_C90_EXTENSION_COMPILE_OPTION "${_std}=c89")
+ set(CMAKE_C90_EXTENSION_COMPILE_OPTION "${_std}=gnu89")
set(CMAKE_C99_STANDARD_COMPILE_OPTION "${_std}=c99")
- set(CMAKE_C99_EXTENSION_COMPILE_OPTION "${_std}=c99")
+ set(CMAKE_C99_EXTENSION_COMPILE_OPTION "${_std}=gnu99")
endif()
if(NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 12.1)