[CMake][Polly] Remove dead CMake code
LLVM requires CMake 3.13.4 so remove code behind checks for an older version.
Reviewed By: phosek
Differential Revision: https://reviews.llvm.org/D87192
GitOrigin-RevId: 098130fa403a82f2a425761bbccdede022fac3ff
diff --git a/cmake/polly_macros.cmake b/cmake/polly_macros.cmake
index 86de6f1..518a09b 100644
--- a/cmake/polly_macros.cmake
+++ b/cmake/polly_macros.cmake
@@ -72,21 +72,6 @@
endif()
endmacro(add_polly_loadable_module)
-# Use C99-compatible compile mode for all C source files of a target.
-function(target_enable_c99 _target)
- if(CMAKE_VERSION VERSION_GREATER "3.1")
- set_target_properties("${_target}" PROPERTIES C_STANDARD 99)
- elseif(CMAKE_COMPILER_IS_GNUCC)
- get_target_property(_sources "${_target}" SOURCES)
- foreach(_file IN LISTS _sources)
- get_source_file_property(_lang "${_file}" LANGUAGE)
- if(_lang STREQUAL "C")
- set_source_files_properties(${_file} COMPILE_FLAGS "-std=gnu99")
- endif()
- endforeach()
- endif()
-endfunction()
-
# Recursive helper for setup_source_group. Traverse the file system and add
# source files matching the glob_expr to the prefix, recursing into
# subdirectories as they are encountered
diff --git a/lib/External/CMakeLists.txt b/lib/External/CMakeLists.txt
index 1039079..c953ea4 100644
--- a/lib/External/CMakeLists.txt
+++ b/lib/External/CMakeLists.txt
@@ -293,8 +293,7 @@
)
# ISL requires at least C99 to compile. gcc < 5.0 use -std=gnu89 as default.
- target_enable_c99(PollyISL)
- target_enable_c99(polly-isl-test)
+ set_property(TARGET PollyISL polly-isl-test PROPERTY C_STANDARD 99)
endif (POLLY_BUNDLED_ISL)
set(PET_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/pet")
