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4997f921ee
- cmake: fix compiler warnings in `CheckNonblockingSocketSupport`. detection functions. Without this, these detections fail when `ENABLE_WERROR=ON`. - cmake: disable ENABLE_WERROR for MSVC during symbol checks in `src`. CMake's built-in symbol check function `check_symbol_exists()` generate warnings with MSVC. With warnings considered errors, these detections fail permanently. Our workaround is to disable warnings-as-errors while running these checks. ``` CheckSymbolExists.c(8): warning C4054: 'type cast': from function pointer '__int64 (__cdecl *)(const char *,char **,int)' to data pointer 'int *' in `return ((int*)(&strtoll))[argc];` ``` Ref: https://ci.appveyor.com/project/libssh2org/libssh2/builds/46537222/job/4vg4yg333mu2lg9b - example: replace `strcasecmp()` with C89 `strcmp()`. To avoid using CMake symbol checks in `example`. Another option is to duplicate the `check_symbol_exists()` workaround from `src`, but I figure it's not worth the complexity. We use `strcasecmp()` solely to check optional command-line options for example programs, and those are fine as lower-case. Without this, these detections fail when `ENABLE_WERROR=ON`. - also delete `__function__` detection/use in `example`. To avoid the complexity for the sake of using it at a single place in of the example's error branch. Replace that use with a literal name of the function. - cmake: also use `CMakePushCheckState` functions instead of manual save/restore. Closes #857
47 lines
1.9 KiB
C
47 lines
1.9 KiB
C
/* Copyright (c) 2014 Alexander Lamaison <alexander.lamaison@gmail.com>
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*
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* Redistribution and use in source and binary forms,
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* with or without modification, are permitted provided
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* that the following conditions are met:
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*
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* Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the
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* following disclaimer.
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*
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* Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* Neither the name of the copyright holder nor the names
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* of any other contributors may be used to endorse or
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* promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*/
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/* Headers */
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#cmakedefine HAVE_UNISTD_H
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#cmakedefine HAVE_INTTYPES_H
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#cmakedefine HAVE_STDLIB_H
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#cmakedefine HAVE_SYS_SELECT_H
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#cmakedefine HAVE_SYS_SOCKET_H
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#cmakedefine HAVE_SYS_TIME_H
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#cmakedefine HAVE_ARPA_INET_H
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#cmakedefine HAVE_NETINET_IN_H
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#cmakedefine HAVE_WINSOCK2_H
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