f1x1t/cmake-find
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

QuadMath

Browse Source
This commit is contained in:
Andrei Astafev 2019-03-05 23:33:32 +03:00
parent 5615f2f78b
commit 57396140b2
1 changed files with 50 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

50
FindQuadmath.cmake Normal file
View File

@ -0,0 +1,50 @@
# Module that checks whether the compiler supports the
# quadruple precision floating point math
#
# Sets the following variables:
# QUADMATH_FOUND
# QUADMATH_LIBRARIES
#
# perform tests
include(CheckCSourceCompiles)
include(CheckCXXSourceCompiles)
include(CMakePushCheckState)
include(CheckCXXCompilerFlag)
if(NOT DEFINED USE_QUADMATH OR USE_QUADMATH)
if(NOT DEFINED HAVE_EXTENDED_NUMERIC_LITERALS)
check_cxx_compiler_flag("-Werror -fext-numeric-literals" HAVE_EXTENDED_NUMERIC_LITERALS)
endif()
if (HAVE_EXTENDED_NUMERIC_LITERALS)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fext-numeric-literals")
endif()
cmake_push_check_state(RESET)
list(APPEND CMAKE_REQUIRED_LIBRARIES "quadmath")
CHECK_CXX_SOURCE_COMPILES("
#include <quadmath.h>
int main(void){
__float128 foo = sqrtq(123.456);
foo = FLT128_MIN;
}" QUADMATH_FOUND)
cmake_pop_check_state()
if (QUADMATH_FOUND)
set(QUADMATH_LIBRARIES "quadmath")
set(QUADMATH_FOUND "${QUADMATH_FOUND}")
set(HAVE_QUADMATH 1)
endif()
endif()
if (USE_QUADMATH AND NOT QUADMATH_FOUND)
message(FATAL_ERROR "Quadruple precision math support was explicitly requested but is unavailable!")
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(Quadmath
DEFAULT_MSG
QUADMATH_LIBRARIES
QUADMATH_FOUND
)