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# CheckSystemHeaders.cmake
# Checks for the existence of system headers
# Check platform specific includes
function(CheckSystemHeaders)
# Basic system headers
check_include_files(sys/types.h HAVE_SYS_TYPES_H)
check_include_files(sys/uio.h HAVE_SYS_UIO_H)
# Standard C headers
check_include_files(fcntl.h HAVE_FCNTL_H)
check_include_files(math.h HAVE_MATH_H)
check_include_files(stdio.h HAVE_STDIO_H)
check_include_files(stdlib.h HAVE_STDLIB_H)
check_include_files(string.h HAVE_STRING_H)
check_include_files(strings.h HAVE_STRINGS_H)
check_include_files(time.h HAVE_TIME_H)
check_include_files(unistd.h HAVE_UNISTD_H)
# Data type headers
check_include_files(stdint.h HAVE_STDINT_H)
check_include_files(inttypes.h HAVE_INTTYPES_H)
check_include_files(stdbool.h HAVE_STDBOOL_H)
# Endian-related headers
check_include_files(endian.h HAVE_ENDIAN_H)
check_include_files(sys/endian.h HAVE_SYS_ENDIAN_H)
check_include_files(machine/endian.h HAVE_MACHINE_ENDIAN_H)
# System utility headers
check_include_files(sys/socket.h HAVE_SYS_SOCKET_H)
check_include_files(sys/mman.h HAVE_SYS_MMAN_H)
check_include_files(sys/un.h HAVE_SYS_UN_H)
check_include_files(sys/stat.h HAVE_SYS_STAT_H)
check_include_files(sys/wait.h HAVE_SYS_WAIT_H)
check_include_files(sys/param.h HAVE_SYS_PARAM_H)
check_include_files(sys/file.h HAVE_SYS_FILE_H)
check_include_files(sys/resource.h HAVE_SYS_RESOURCE_H)
# Network-related headers
check_include_files(netinet/in.h HAVE_NETINET_IN_H)
check_include_files(netinet/tcp.h HAVE_NETINET_TCP_H)
check_include_files(arpa/inet.h HAVE_ARPA_INET_H)
check_include_files(netdb.h HAVE_NETDB_H)
# System logging and signal handling
check_include_files(syslog.h HAVE_SYSLOG_H)
check_include_files(siginfo.h HAVE_SIGINFO_H)
# Internationalization and user/groups
check_include_files(locale.h HAVE_LOCALE_H)
check_include_files(libgen.h HAVE_LIBGEN_H)
check_include_files(pwd.h HAVE_PWD_H)
check_include_files(grp.h HAVE_GRP_H)
# File and path handling
check_include_files(glob.h HAVE_GLOB_H)
check_include_files(poll.h HAVE_POLL_H)
check_include_files(readpassphrase.h HAVE_READPASSPHRASE_H)
check_include_files(termios.h HAVE_TERMIOS_H)
check_include_files(paths.h HAVE_PATHS_H)
# Other utilities
check_include_files(ctype.h HAVE_CTYPE_H)
check_include_files(cpuid.h HAVE_CPUID_H)
check_include_files(dirent.h HAVE_DIRENT_H)
# Context-related headers
check_include_files(ucontext.h HAVE_UCONTEXT_H)
check_include_files(sys/ucontext.h HAVE_SYS_UCONTEXT_H) # OSX specific
# Time and memory
check_include_files(sys/timeb.h HAVE_SYS_TIMEB_H)
# Log the results for important headers
if (NOT HAVE_SYS_TYPES_H)
message(WARNING "sys/types.h not found - this may cause problems")
endif ()
if (NOT HAVE_SYS_SOCKET_H)
message(WARNING "sys/socket.h not found - networking functionality may be limited")
endif ()
# Return results to parent scope
foreach (var
HAVE_SYS_TYPES_H
HAVE_SYS_UIO_H
HAVE_FCNTL_H
HAVE_MATH_H
HAVE_STDIO_H
HAVE_STDLIB_H
HAVE_STRING_H
HAVE_STRINGS_H
HAVE_TIME_H
HAVE_UNISTD_H
HAVE_STDINT_H
HAVE_INTTYPES_H
HAVE_STDBOOL_H
HAVE_ENDIAN_H
HAVE_SYS_ENDIAN_H
HAVE_MACHINE_ENDIAN_H
HAVE_SYS_SOCKET_H
HAVE_SYS_MMAN_H
HAVE_SYS_UN_H
HAVE_SYS_STAT_H
HAVE_SYS_WAIT_H
HAVE_SYS_PARAM_H
HAVE_SYS_FILE_H
HAVE_SYS_RESOURCE_H
HAVE_NETINET_IN_H
HAVE_NETINET_TCP_H
HAVE_ARPA_INET_H
HAVE_NETDB_H
HAVE_SYSLOG_H
HAVE_SIGINFO_H
HAVE_LOCALE_H
HAVE_LIBGEN_H
HAVE_PWD_H
HAVE_GRP_H
HAVE_GLOB_H
HAVE_POLL_H
HAVE_READPASSPHRASE_H
HAVE_TERMIOS_H
HAVE_PATHS_H
HAVE_CTYPE_H
HAVE_UNISTD_H
HAVE_CPUID_H
HAVE_DIRENT_H
HAVE_UCONTEXT_H
HAVE_SYS_UCONTEXT_H
HAVE_SYS_TIMEB_H)
if (${var})
set(${var} ${${var}} PARENT_SCOPE)
endif ()
endforeach ()
endfunction()
# Execute the function
CheckSystemHeaders()
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