tree b9c029351bfee7f8a782a835da00182ea2199df9
parent 2dd907744d83fd0bd3f58d1397be0a162f19a423
author Alex Stewart <alexs.mac@gmail.com> 1485541179 +0000
committer Alex Stewart <alexs.mac@gmail.com> 1485556313 +0000

Fix detection of deprecated Bessel function names on MSVC.

- MSVC deprecated the standard POSIX names for Bessel functions in
  favour of underscore prefixed versions.
- Previously we were checking for the presence of the newer underscore
  functions via a macro, which fails as the functions are not defined
  as macros.
- Now we check via a check_cxx_source_compiles() if the newer underscore
  prefixed versions exist when compiling on MSVC and use a new Ceres
  configuration #define to switch on their presence in jet.h

Change-Id: I430880bde2981d12f4d03dbc94d903b9842e887e