1# This file contains all the logic for running configure-time checks
2
3include(CheckSymbolExists)
4include(CheckIncludeFile)
5include(CheckIncludeFiles)
6include(CheckLibraryExists)
7
8set(CMAKE_REQUIRED_DEFINITIONS -D_GNU_SOURCE)
9check_symbol_exists(ppoll poll.h HAVE_PPOLL)
10set(CMAKE_REQUIRED_DEFINITIONS)
11check_symbol_exists(sigaction signal.h HAVE_SIGACTION)
12
13check_include_file(termios.h HAVE_TERMIOS_H)
14check_include_files("sys/types.h;sys/event.h" HAVE_SYS_EVENT_H)
15
16check_cxx_source_compiles("
17  #include <sys/uio.h>
18  int main() { process_vm_readv(0, nullptr, 0, nullptr, 0, 0); return 0; }"
19  HAVE_PROCESS_VM_READV)
20check_cxx_source_compiles("
21    #include <sys/syscall.h>
22    int main() { return __NR_process_vm_readv; }"
23    HAVE_NR_PROCESS_VM_READV)
24
25check_library_exists(compression compression_encode_buffer "" HAVE_LIBCOMPRESSION)
26
27# These checks exist in LLVM's configuration, so I want to match the LLVM names
28# so that the check isn't duplicated, but we translate them into the LLDB names
29# so that I don't have to change all the uses at the moment.
30set(LLDB_CONFIG_TERMIOS_SUPPORTED ${HAVE_TERMIOS_H})
31if(NOT UNIX)
32  set(LLDB_DISABLE_POSIX 1)
33endif()
34
35if(NOT LLDB_CONFIG_HEADER_INPUT)
36 set(LLDB_CONFIG_HEADER_INPUT ${LLDB_INCLUDE_ROOT}/lldb/Host/Config.h.cmake)
37endif()
38
39if(NOT LLDB_CONFIG_HEADER_OUTPUT)
40 set(LLDB_CONFIG_HEADER_OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/include/lldb/Host/Config.h)
41endif()
42
43# This should be done at the end
44configure_file(
45  ${LLDB_CONFIG_HEADER_INPUT}
46  ${LLDB_CONFIG_HEADER_OUTPUT}
47  )
48