curl/CMake/win32-cache.cmake
Viktor Szakats 1671ebd975
build: drop superfluous STDC_HEADERS macro
It is traditionally defined by autotools to detect the presence of set
of standard C89 headers. autoconf 2.70 (2020-12-08) reduced the headers
covered to `stdlib.h`, `string.h`. After 2.59d (2006-06-05) obsoleting
it earlier. CMake replicated this detection, and curl included
`curl/stdcheaders.h` if standard headers were missing. However, such
condition could never happen because curl sources already assume all
checked standard headers (`stdarg.h`, `stdlib.h`, `string.h`) and
include them unconditionally.

Since this is an unused feature detection and an impossible fallback
path, drop them from CMake and curl's source. autotools continues to do
the detection by default, but its result is unused after this patch.

This leaves public `curl/stdcheaders.h` unused from within the codebase.

Refs:
f0c7c42553
86c213d0e3

Follow-up to 65dae4ad80 #22191
Follow-up to 4c5307b456
Ref: ae1912cb0d

Closes #22206
2026-06-29 11:11:16 +02:00

189 lines
5.5 KiB
CMake

#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
# SPDX-License-Identifier: curl
#
###########################################################################
if(NOT WIN32)
message(FATAL_ERROR "This file should be included on Windows platform only")
endif()
if(MINGW)
set(HAVE_BASENAME 1)
set(HAVE_BOOL_T 1) # = HAVE_STDBOOL_H
set(HAVE_DIRENT_H 1)
set(HAVE_GETTIMEOFDAY 1)
set(HAVE_LIBGEN_H 1)
set(HAVE_OPENDIR 1)
set(HAVE_STDBOOL_H 1)
set(HAVE_STDDEF_H 1) # detected by CMake internally in check_type_size()
set(HAVE_STDINT_H 1) # detected by CMake internally in check_type_size()
set(HAVE_STRINGS_H 1) # wrapper to string.h
set(HAVE_SYS_PARAM_H 1)
set(HAVE_UNISTD_H 1)
set(HAVE_UTIME_H 1) # wrapper to sys/utime.h
else()
set(HAVE_DIRENT_H 0)
set(HAVE_GETTIMEOFDAY 0)
set(HAVE_LIBGEN_H 0)
set(HAVE_OPENDIR 0)
set(HAVE_STRINGS_H 0)
set(HAVE_SYS_PARAM_H 0)
set(HAVE_UTIME_H 0)
if(MSVC)
set(HAVE_UNISTD_H 0)
set(HAVE_STDDEF_H 1) # detected by CMake internally in check_type_size()
set(HAVE_STDINT_H 1) # detected by CMake internally in check_type_size()
if(MSVC_VERSION GREATER_EQUAL 1800)
set(HAVE_STDBOOL_H 1)
else()
set(HAVE_STDBOOL_H 0)
endif()
set(HAVE_BOOL_T "${HAVE_STDBOOL_H}")
set(HAVE_BASENAME 0)
endif()
endif()
if((CMAKE_C_COMPILER_ID STREQUAL "GNU" AND CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 4.9) OR
(CMAKE_C_COMPILER_ID STREQUAL "Clang" AND CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 3.6))
# MinGW or clang-cl
set(HAVE_STDATOMIC_H 1)
set(HAVE_ATOMIC 1)
else()
set(HAVE_STDATOMIC_H 0)
set(HAVE_ATOMIC 0)
endif()
set(HAVE_ACCEPT4 0)
set(HAVE_ALARM 0)
set(HAVE_ARC4RANDOM 0)
set(HAVE_ARPA_INET_H 0)
set(HAVE_CLOSESOCKET 1)
set(HAVE_EVENTFD 0)
set(HAVE_FCNTL 0)
set(HAVE_FCNTL_H 1)
set(HAVE_FCNTL_O_NONBLOCK 0)
set(HAVE_FNMATCH 0)
set(HAVE_FREEADDRINFO 1) # Available in Windows XP and newer
set(HAVE_FSETXATTR 0)
set(HAVE_GETADDRINFO 1) # Available in Windows XP and newer
set(HAVE_GETEUID 0)
set(HAVE_GETHOSTBYNAME_R 0)
set(HAVE_GETHOSTBYNAME_R_3 0)
set(HAVE_GETHOSTBYNAME_R_3_REENTRANT 0)
set(HAVE_GETHOSTBYNAME_R_5 0)
set(HAVE_GETHOSTBYNAME_R_5_REENTRANT 0)
set(HAVE_GETHOSTBYNAME_R_6 0)
set(HAVE_GETHOSTBYNAME_R_6_REENTRANT 0)
set(HAVE_GETHOSTNAME 1)
set(HAVE_GETIFADDRS 0)
set(HAVE_GETPASS_R 0)
set(HAVE_GETPEERNAME 1)
set(HAVE_GETPPID 0)
set(HAVE_GETPWUID 0)
set(HAVE_GETPWUID_R 0)
set(HAVE_GETRLIMIT 0)
set(HAVE_GETSOCKNAME 1)
set(HAVE_GLIBC_STRERROR_R 0)
set(HAVE_GMTIME_R 0)
set(HAVE_IFADDRS_H 0)
set(HAVE_IOCTLSOCKET 1)
set(HAVE_IOCTLSOCKET_CAMEL 0)
set(HAVE_IOCTLSOCKET_CAMEL_FIONBIO 0)
set(HAVE_IOCTLSOCKET_FIONBIO 1)
set(HAVE_IOCTL_FIONBIO 0)
set(HAVE_IOCTL_SIOCGIFADDR 0)
set(HAVE_IO_H 1)
set(HAVE_LINUX_TCP_H 0)
set(HAVE_LOCALE_H 1)
set(HAVE_LOCALTIME_R 0)
set(HAVE_MEMRCHR 0)
set(HAVE_NETDB_H 0)
set(HAVE_NETINET_IN6_H 0)
set(HAVE_NETINET_IN_H 0)
set(HAVE_NETINET_TCP_H 0)
set(HAVE_NETINET_UDP_H 0)
set(HAVE_NET_IF_H 0)
set(HAVE_PIPE 0)
set(HAVE_PIPE2 0)
set(HAVE_POLL 0)
set(HAVE_POLL_H 0)
set(HAVE_POSIX_STRERROR_R 0)
set(HAVE_PWD_H 0)
set(HAVE_RECV 1)
set(HAVE_SELECT 1)
set(HAVE_SEND 1)
set(HAVE_SENDMMSG 0)
set(HAVE_SENDMSG 0)
set(HAVE_SETLOCALE 1)
set(HAVE_SETRLIMIT 0)
set(HAVE_SETSOCKOPT_SO_NONBLOCK 0)
set(HAVE_SIGACTION 0)
set(HAVE_SIGINTERRUPT 0)
set(HAVE_SIGNAL 1)
set(HAVE_SIGSETJMP 0)
set(HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID 1)
set(HAVE_SOCKET 1)
set(HAVE_SOCKETPAIR 0)
set(HAVE_STRERROR_R 0)
set(HAVE_STROPTS_H 0)
set(HAVE_STRUCT_SOCKADDR_STORAGE 1)
set(HAVE_STRUCT_TIMEVAL 1)
set(HAVE_SYS_EVENTFD_H 0)
set(HAVE_SYS_FILIO_H 0)
set(HAVE_SYS_IOCTL_H 0)
set(HAVE_SYS_POLL_H 0)
set(HAVE_SYS_RESOURCE_H 0)
set(HAVE_SYS_SELECT_H 0)
set(HAVE_SYS_SOCKIO_H 0)
set(HAVE_SYS_TYPES_H 1)
set(HAVE_SYS_UN_H 0)
set(HAVE_SYS_UTIME_H 1)
set(HAVE_TERMIOS_H 0)
set(HAVE_TERMIO_H 0)
set(HAVE_TIME_T_UNSIGNED 0)
set(HAVE_UTIME 1)
set(HAVE_UTIMES 0)
# Types and sizes
set(HAVE_SIZEOF_SA_FAMILY_T 0)
set(HAVE_SIZEOF_SUSECONDS_T 0)
if(MINGW OR MSVC)
curl_prefill_type_size("INT" 4)
curl_prefill_type_size("LONG" 4)
curl_prefill_type_size("__INT64" 8)
curl_prefill_type_size("CURL_OFF_T" 8)
curl_prefill_type_size("CURL_SOCKET_T" ${CMAKE_SIZEOF_VOID_P})
curl_prefill_type_size("SIZE_T" ${CMAKE_SIZEOF_VOID_P})
# TIME_T: 8 for _WIN64 or UCRT or MSVC, 4 otherwise
# Also 4 for non-UCRT 32-bit when _USE_32BIT_TIME_T is set.
# mingw-w64 sets _USE_32BIT_TIME_T unless __MINGW_USE_VC2005_COMPAT is explicit defined.
if(MSVC)
set(HAVE_SIZEOF_SSIZE_T 0)
set(HAVE_FILE_OFFSET_BITS 0)
curl_prefill_type_size("OFF_T" 4)
else()
curl_prefill_type_size("SSIZE_T" ${CMAKE_SIZEOF_VOID_P})
set(HAVE_FILE_OFFSET_BITS 1) # mingw-w64 v3+
curl_prefill_type_size("OFF_T" 8) # mingw-w64 v3+
endif()
endif()