Is it possible to enable data sections and function sections without explicitly giving flags "-fdata-sections" and "-ffunction-sections"?

[3119369616.qq via Gcc]

To divide functions into sections and then remove unused sections, I must 
provide flags "-fdata-sections" and "-ffunction-sections" in GCC and a flag 
"--gc-sections" in LD. Most of the build systems don't support these flags so 
GCC will generate bigger binaries.
Is it possible to enable this feature without  giving any command line 
flags manually?