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Add a test for stdint.h like ISL's configure does 

Reviewers: grosser
llvm-svn: 242772
This commit is contained in:
Michael Kruse 2015-07-21 12:09:41 +00:00
parent d2bb9a3a31
commit 9e44f2f1cc
1 changed files with 38 additions and 0 deletions
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38
polly/lib/CMakeLists.txt
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@ -58,6 +58,21 @@ function (check_c_source_compiles_numeric _prog _var)
endif ()
endfunction ()
# Check for the existance of a type
function (check_c_type_exists _type _files _variable)
set(_includes "")
foreach (file_name ${_files})
set(_includes "${_includes}#include<${file_name}>\n")
endforeach()
check_c_source_compiles("
${_includes}
${_type} typeVar;
int main() {
return 0;
}
" ${_variable})
endfunction ()
check_c_source_compiles("
int func(void) __attribute__((__warn_unused_result__));
@ -139,6 +154,23 @@ if (NOT HAVE_DECL_SNPRINTF AND NOT HAVE_DECL__SNPRINTF)
message(FATAL_ERROR "No snprintf implementation found")
endif ()
check_c_type_exists(uint8_t "" HAVE_UINT8T)
check_c_type_exists(uint8_t "stdint.h" HAVE_STDINT_H)
check_c_type_exists(uint8_t "inttypes.h" HAVE_INTTYPES_H)
check_c_type_exists(uint8_t "sys/types.h" HAVE_SYS_INTTYPES_H)
if (HAVE_UINT8T)
set(INCLUDE_STDINT_H "")
elseif (HAVE_STDINT_H)
set(INCLUDE_STDINT_H "#include <stdint.h>")
elseif (HAVE_INTTYPES_H)
set(INCLUDE_STDINT_H "#include <inttypes.h>")
elseif (HAVE_SYS_INTTYPES_H)
set(INCLUDE_STDINT_H "#include <sys/inttypes.h>")
else ()
message(FATAL_ERROR "No stdint.h or compatible found")
endif ()
# Write configure result
# configure_file(... COPYONLY) avoids that the time stamp changes if the file is identical
file(WRITE "${ISL_BINARY_DIR}/gitversion.h.tmp"
@ -146,8 +178,14 @@ file(WRITE "${ISL_BINARY_DIR}/gitversion.h.tmp"
configure_file("${ISL_BINARY_DIR}/gitversion.h.tmp"
"${ISL_BINARY_DIR}/gitversion.h" COPYONLY)
file(WRITE "${ISL_BINARY_DIR}/include/isl/stdint.h.tmp"
"${INCLUDE_STDINT_H}")
configure_file("${ISL_BINARY_DIR}/include/isl/stdint.h.tmp"
"${ISL_BINARY_DIR}/include/isl/stdint.h" COPYONLY)
configure_file("External/isl_config.h.cmake" "${ISL_BINARY_DIR}/isl_config.h")
# ISL files to compile
set (ISL_FILES
External/isl/basis_reduction_tab.c