Add PCH support for faster compilations
Can be enabled using cmake -DBUILD_PCH=ON ..
Before
real 2m2.740s
user 14m14.116s
sys 1m30.621s
After
real 1m23.822s
user 9m20.945s
sys 1m10.903s
Can be enabled using cmake -DBUILD_PCH=ON ..
Before
real 2m2.740s
user 14m14.116s
sys 1m30.621s
After
real 1m23.822s
user 9m20.945s
sys 1m10.903s