https://bugs.llvm.org/show_bug.cgi?id=41202
Bug ID: 41202
Summary: float.h not working on mingw
Product: clang
Version: 8.0
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: C++
Assignee: unassignedclangb...@nondot.org
Reporter: markus.boec...@gmail.com
CC: blitzrak...@gmail.com, dgre...@apple.com,
erik.pilking...@gmail.com, llvm-bugs@lists.llvm.org,
richard-l...@metafoo.co.uk
After compiling clang 8 using mingw gcc 8.1 I wanted to compile one of my
projects but it failed to compile as there is an error when including the file
float.h. Tried the same with Clang 7 and Clang 7.0.1 and did not have any
problems.
Turns out the problem is something with the preprocessor:
#if (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 6)) \
|| (__clang_major__ >=3)
#if !defined(_FLOAT_H___) && !defined(__FLOAT_H)
#include_next <float.h>
#endif
Clang 7 and 7.0.1 for some reason do not enable the region which has
#include_next yet clang 8 does and fails as it does not fit a next float.h
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