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FortranCInterface: Fix misuse of IS_NEWER_THAN in timestamp check

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When using a file system which only has second resolution timestamps,
there is a reasonably high likelihood of timestamps being the same.
The IS_NEWER_THAN test returns true when timestamps are the same,
so don't redo detection when they match exactly.
This commit is contained in:
Craig Scott
2021-02-21 18:04:28 +11:00
committed by Brad King
parent e360dcdec1
commit d7c8030541
1 changed files with 11 additions and 8 deletions
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19
Modules/FortranCInterface/Detect.cmake
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@@ -6,14 +6,17 @@ configure_file(${FortranCInterface_SOURCE_DIR}/Input.cmake.in
# Detect the Fortran/C interface on the first run or when the
# configuration changes.
if(${FortranCInterface_BINARY_DIR}/Input.cmake
IS_NEWER_THAN ${FortranCInterface_BINARY_DIR}/Output.cmake
OR ${FortranCInterface_SOURCE_DIR}/Output.cmake.in
IS_NEWER_THAN ${FortranCInterface_BINARY_DIR}/Output.cmake
OR ${FortranCInterface_SOURCE_DIR}/CMakeLists.txt
IS_NEWER_THAN ${FortranCInterface_BINARY_DIR}/Output.cmake
OR ${CMAKE_CURRENT_LIST_FILE}
IS_NEWER_THAN ${FortranCInterface_BINARY_DIR}/Output.cmake
if(NOT EXISTS ${FortranCInterface_BINARY_DIR}/Output.cmake
OR NOT EXISTS ${FortranCInterface_BINARY_DIR}/Input.cmake
OR NOT EXISTS ${FortranCInterface_BINARY_DIR}/Output.cmake.in
OR NOT ${FortranCInterface_BINARY_DIR}/Output.cmake
IS_NEWER_THAN ${FortranCInterface_BINARY_DIR}/Input.cmake
OR NOT ${FortranCInterface_SOURCE_DIR}/Output.cmake
IS_NEWER_THAN ${FortranCInterface_BINARY_DIR}/Output.cmake.in
OR NOT ${FortranCInterface_BINARY_DIR}/Output.cmake
IS_NEWER_THAN ${FortranCInterface_SOURCE_DIR}/CMakeLists.txt
OR NOT ${FortranCInterface_BINARY_DIR}/Output.cmake
IS_NEWER_THAN ${CMAKE_CURRENT_LIST_FILE}
)
message(CHECK_START "Detecting Fortran/C Interface")
else()