https://bugs.llvm.org/show_bug.cgi?id=37597
Bug ID: 37597
Summary: math.h conflicting noexcept declaration
Product: libc++
Version: 6.0
Hardware: Sun
OS: Solaris
Status: NEW
Severity: normal
Priority: P
Component: All Bugs
Assignee: unassignedclangb...@nondot.org
Reporter: phant...@gmail.com
CC: llvm-bugs@lists.llvm.org, mclow.li...@gmail.com
Building on Solaris 10 / sparcv9 hardware:
cmake ../src/llvm \
-DCMAKE_C_COMPILER=gcc-7.2.0 \
-DCMAKE_CXX_COMPILER=g++-7.2.0 \
-DGCC_INSTALL_PREFIX=$(dirname $(dirname $(which gcc-7.2.0))) \
-DCMAKE_BUILD_TYPE=RelWithDebInfo
make -j32
I get the following compile error:
In file included from (...)/projects/libcxx/src/debug.cpp:10:0:
(...)/projects/libcxx/include/math.h: In function 'float acosh(float)':
(...)/projects/libcxx/include/__config:776:21: error: 'float acosh(float)'
conflicts with a previous declaration
# define _NOEXCEPT noexcept
^
(...)/projects/libcxx/include/math.h:1038:68: note: in expansion of macro
'_NOEXCEPT'
inline _LIBCPP_INLINE_VISIBILITY float acosh(float __lcpp_x)
_NOEXCEPT {return ::acoshf(__lcpp_x);}
^~~~~~~~~
... for 34 functions declared in math.h:
acosh, asinh, atanh, cbrt, copysign, erf, erfc, exp2, expm1, fdim, fma, fmax,
fmin, hypot, ilogb, lgamma, llrint, llround, log1p, log2, logb, lrint, lround,
nearbyint, nextafter, nexttoward, remainder, remquo, rint, round, scalbln,
scalbn, tgamma, trunc
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