على ٢٩/٠٣/٤٥ ‫٠٨:٢٦ م، كتب Thiago Macieira:
Anyway, the problem here is not Qt, but the environment, somehow. The symbol
"sem_wait" is defined in two libraries:

libpthread.dll.a(libwinpthread_1_dll_d000137.o):(.text+0x0): multiple
definition of `sem_wait
librt.a(t-msys_2_0_dll_d001304.o):(.text+0x0): first defined here

libwinpthread.dll.a belongs to mingw-w64-libwinpthread-git package while librt.a belongs to msys-runtime-devel package (cygwin) which should be installed when building for MinGW-w64.

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