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diff --git a/cmake/modules/RootConfiguration.cmake b/cmake/modules/RootConfiguration.cmake
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index f51bcbe..1ee0602 100644
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--- a/cmake/modules/RootConfiguration.cmake
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+++ b/cmake/modules/RootConfiguration.cmake
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@@ -569,7 +569,7 @@ configure_file(${CMAKE_SOURCE_DIR}/cmake/scripts/ROOTConfig-version.cmake.in
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 #---Compiler flags (because user apps are a bit dependent on them...)----------------------------------------
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 string(REGEX REPLACE "(^|[ ]*)-W[^ ]*" "" __cxxflags "${CMAKE_CXX_FLAGS}")
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 string(REGEX REPLACE "(^|[ ]*)-W[^ ]*" "" __cflags "${CMAKE_C_FLAGS}")
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-string(REGEX REPLACE "(^|[ ]*)-W[^ ]*" "" __fflags "${CMAKE_fortran_FLAGS}")
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+string(REGEX REPLACE "(^|[ ]*)-W[^ ]*" "" __fflags "${CMAKE_Fortran_FLAGS}")
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 string(REGEX MATCHALL "-(D|U)[^ ]*" __defs "${CMAKE_CXX_FLAGS}")
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 set(ROOT_COMPILER_FLAG_HINTS "#
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 set(ROOT_DEFINITIONS \"${__defs}\")
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diff --git a/cmake/scripts/RootUseFile.cmake.in b/cmake/scripts/RootUseFile.cmake.in
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index 045926d..a419744 100644
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--- a/cmake/scripts/RootUseFile.cmake.in
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+++ b/cmake/scripts/RootUseFile.cmake.in
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@@ -9,4 +9,4 @@ link_directories(${ROOT_LIBRARY_DIR})
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 add_definitions(${ROOT_DEFINITIONS})
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 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${ROOT_CXX_FLAGS}")
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 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${ROOT_C_FLAGS}")
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-set(CMAKE_fortran_FLAGS "${CMAKE_fortran_FLAGS} ${ROOT_fortran_FLAGS}")
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+set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} ${ROOT_fortran_FLAGS}")
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diff --git a/etc/cmake/RootUseFile.cmake b/etc/cmake/RootUseFile.cmake
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index b9a8e34..f931ad3 100644
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--- a/etc/cmake/RootUseFile.cmake
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+++ b/etc/cmake/RootUseFile.cmake
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@@ -6,4 +6,4 @@ link_directories(${ROOT_LIBRARY_DIR})
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 add_definitions(${ROOT_DEFINITIONS})
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 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${ROOT_CXX_FLAGS}")
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 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${ROOT_C_FLAGS}")
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-set(CMAKE_fortran_FLAGS "${CMAKE_fortran_FLAGS} ${ROOT_fortran_FLAGS}")
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+set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} ${ROOT_fortran_FLAGS}")