https://bugs.winehq.org/show_bug.cgi?id=52250 --- Comment #3 from Marcos Gutiérrez Batz <sacrom(a)gmail.com> --- Looking further, the second error was not libcurl checking the definition (sorry!). It's due to the first part of the winsock.h, the one in the __WINE_WINSOCKAPI_STDLIB_H "section". So the solution can be: #define _WINSOCKAPI_ #define __WINE_WINSOCKAPI_STDLIB_H Maybe the #ifdef __WINE_WINSOCKAPI_STDLIB_H "section" could be moved inside the _WINSOCKAPI_ one, so to just have the first define... Anyway, with this two defines is working, but I think the previous solution was neater (not so "hacky"). So I leave the bug open for you to close if you think it is not worth the effort. -- Do not reply to this email, post in Bugzilla using the above URL to reply. You are receiving this mail because: You are watching all bug changes.