glibc/sysdeps/sparc/Makefile

# The Sparc `long double' is a distinct type we support.
long-double-fcts = yes

pie-ccflag = -fPIE

ifeq ($(subdir),debug)
CFLAGS-backtrace.c += -funwind-tables
endif

ifeq ($(subdir),gmon)
sysdep_routines += sparc-mcount
endif

ifeq ($(subdir),db2)
CPPFLAGS += -DHAVE_SPINLOCKS=1 -DHAVE_ASSEM_SPARC_GCC=1
endif

ifeq ($(subdir),csu)
CPPFLAGS-crti.S += -fPIC
CPPFLAGS-crtn.S += -fPIC
endif

# The assembler on SPARC needs the -fPIC flag even when it's assembler code.
ASFLAGS-.os += -fPIC