Update TLFloat version (#676) * Update version of TLFloat to v1.15.0 Co-authored-by: Naoki Shibata <shibatch.sf.net@gmail.com>

SLEEF Release 3.8 Bump version in CMakeLists.

SLEEF Release 3.7 Bump version in CMakeLists.

SLEEF Release 3.6.1 Bump version in CMakeLists.

SLEEF Release 3.6 (#516) Updated CHANGELOG. Version number already bumped in CMakeLists.txt.

Fix compiler flags 2 (#335) This patch fixes the error introduced by the last one. It also enforces detection of VSX and ZVECTOR2. Co-authored-by: shibatch <shibatch.sf.net@gmail.com>

no message (#331) Co-authored-by: shibatch <shibatch.sf.net@gmail.com>

Updates documents for releasing 3.4.1 

no message (#256) Change version number to 3.4.0

Change version to 3.3.1 (#218) In the HTML doc, following items are added * Changes in 3.3.1 * Update input domain of trigonometric functions Changes in 3.3.1 is added to CHANGELOG.md