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AndreasVoellmy authored
Summary: This reverts commit 4748f593. The fix for #9423 was reverted because this commit introduced a C function setIOManagerControlFd() (defined in Schedule.c) defined for all OS types, while the prototype (in includes/rts/IOManager.h) was only included when mingw32_HOST_OS is not defined. This broke Windows builds. This commit reverts the original commit and resolves the problem by only defining setIOManagerControlFd() when mingw32_HOST_OS is defined. Hence the missing prototype error should not occur on Windows. In addition, since the io_manager_control_wr_fd field of the Capability struct is only usd by the setIOManagerControlFd, this commit includes the io_manager_control_wr_fd field in the Capability struct only when mingw32_HOST_OS is not defined. Test Plan: Try to compile successfully on all platforms. Reviewers: austin Reviewed By: austin Subscribers: simonmar, ezyang, carter Differential Revision: https://phabricator.haskell.org/D174
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