Fix a build regression on Solaris
Fix a regression introduced in commit aeb26da4cb64c0e75c8d.
On an Illumos test machine, running the GCC compiler and the Solaris
link editor, the CMake build failed with the following error:
ld: fatal: unrecognized option '--version-script=/.../libpng.vers'
The fix consists in avoiding the use of CMAKE_SHARED_LIBRARY_C_FLAGS
in version script checks on Solaris.
Also clean up the surrounding code, as follows:
* Rename CMAKE_REQUIRED_FLAGS_SAVE to _SAVED_CMAKE_REQUIRED_FLAGS.
(The name of an internal variable should not begin with "CMAKE_".)
* Reformat the version script to optimize the vertical space.
1 file changed
