/usr/include/openlibm/openlibm_fenv.h is in libopenlibm-dev 0.5.0+dfsg-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | #ifdef OPENLIBM_USE_HOST_FENV_H
#include <fenv.h>
#else /* !OPENLIBM_USE_HOST_FENV_H */
#if defined(__arm__)
#include <openlibm_fenv_arm.h>
#elif defined(__x86_64__)
#include <openlibm_fenv_amd64.h>
#elif defined(__i386__)
#include <openlibm_fenv_i387.h>
#elif defined(__powerpc__)
#include <openlibm_fenv_powerpc.h>
#else
#error "Unsupported platform"
#endif
#endif /* OPENLIBM_USE_HOST_FENV_H */
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