local USE flag
custom-optimization

Build with user-specified compiler optimizations (-Os, -O0, -O1, -O2, -O3) from CFLAGS (unsupported)

Packages describing “custom-optimization” as local USE flag

Package “custom-optimization” Flag Description
mail-client/thunderbird Build with user-specified compiler optimizations (-Os, -O0, -O1, -O2, -O3) from CFLAGS (unsupported)
sys-fs/cryfs Use user-defined compiler optimization level
dev-lang/jsonnet Build with user-specified compiler optimizations (-Os, -O0, -O1, -O2, -O3) from CFLAGS (unsupported)
dev-lang/spidermonkey Build with user-specified compiler optimizations (-Os, -O0, -O1, -O2, -O3) from CFLAGS (unsupported)
dev-util/kernelshark Build with user-specified compiler optimizations (-Os, -O0, -O1, -O2, -O3) from CFLAGS
www-client/firefox Build with user-specified compiler optimizations (-Os, -O0, -O1, -O2, -O3) from CFLAGS (unsupported)
www-client/seamonkey Build with user-specified compiler optimizations (-Os, -O0, -O1, -O2, -O3) from CFLAGS (unsupported)

All packages providing a “custom-optimization” USE flag (5)