diff options
| author | Chris Robinson <[email protected]> | 2011-09-24 00:42:14 -0700 |
|---|---|---|
| committer | Chris Robinson <[email protected]> | 2011-09-24 00:42:14 -0700 |
| commit | deef98658ba65ea547ad440f20889273715d17fd (patch) | |
| tree | 76841787e2709b14390165eb9cdf45222d813e6c | |
| parent | d9544d006ba792b32e2fa9abaec62730eca13429 (diff) | |
Don't require libm for the float-type math functions
| -rw-r--r-- | CMakeLists.txt | 31 |
1 files changed, 19 insertions, 12 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 4909a985..89762164 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -223,20 +223,27 @@ IF(NOT HAVE_GUIDDEF_H) ENDIF() CHECK_INCLUDE_FILE(arm_neon.h HAVE_ARM_NEON_H) -CHECK_LIBRARY_EXISTS(m powf "" HAVE_POWF) -CHECK_LIBRARY_EXISTS(m sqrtf "" HAVE_SQRTF) -CHECK_LIBRARY_EXISTS(m cosf "" HAVE_COSF) -CHECK_LIBRARY_EXISTS(m sinf "" HAVE_SINF) -CHECK_LIBRARY_EXISTS(m acosf "" HAVE_ACOSF) -CHECK_LIBRARY_EXISTS(m asinf "" HAVE_ASINF) -CHECK_LIBRARY_EXISTS(m atanf "" HAVE_ATANF) -CHECK_LIBRARY_EXISTS(m fabsf "" HAVE_FABSF) -IF(HAVE_FENV_H) - CHECK_LIBRARY_EXISTS(m fesetround "" HAVE_FESETROUND) -ENDIF() -IF(HAVE_SQRTF OR HAVE_COSF OR HAVE_SINF OR HAVE_ACOSF OR HAVE_ASINF OR HAVE_ATANF OR HAVE_FABSF OR HAVE_FESETROUND) +# Some systems need libm for some of the following math functions to work +CHECK_LIBRARY_EXISTS(m pow "" HAVE_LIBM) +IF(HAVE_LIBM) SET(EXTRA_LIBS m ${EXTRA_LIBS}) + SET(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} m) +ENDIF() + + +CHECK_SYMBOL_EXISTS(powf math.h HAVE_POWF) +CHECK_SYMBOL_EXISTS(sqrtf math.h HAVE_SQRTF) +CHECK_SYMBOL_EXISTS(cosf math.h HAVE_COSF) +CHECK_SYMBOL_EXISTS(sinf math.h HAVE_SINF) +CHECK_SYMBOL_EXISTS(acosf math.h HAVE_ACOSF) +CHECK_SYMBOL_EXISTS(asinf math.h HAVE_ASINF) +CHECK_SYMBOL_EXISTS(atanf math.h HAVE_ATANF) +CHECK_SYMBOL_EXISTS(fabsf math.h HAVE_FABSF) + +IF(HAVE_FENV_H) + CHECK_SYMBOL_EXISTS(fesetround fenv.h HAVE_FESETROUND) ENDIF() + CHECK_FUNCTION_EXISTS(strtof HAVE_STRTOF) CHECK_FUNCTION_EXISTS(_controlfp HAVE__CONTROLFP) |