Add PRIVATE flags to global symbols

simd/jidctflt-sse2-64.asm

 ;
 ; jidctflt.asm - floating-point IDCT (64-bit SSE & SSE2)
 ;
 ; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
 ; Copyright 2009 D. R. Commander
 ;
 ; Based on
 ; x86 SIMD extension for IJG JPEG library
 ; Copyright (C) 1999-2006, MIYASAKA Masaru.
 ; For conditions of distribution and use, see copyright notice in jsimdext.inc
@@ skipping 20 matching lines @@
 %endmacro
 
 %macro  unpckhps2 2     ; %1=(0 1 2 3) / %2=(4 5 6 7) => %1=(2 3 6 7)
         shufps  %1,%2,0xEE
 %endmacro
 
 ; --------------------------------------------------------------------------
         SECTION SEG_CONST
 
         alignz  16
-        global  EXTN(jconst_idct_float_sse2)
+        global  EXTN(jconst_idct_float_sse2) PRIVATE
 
 EXTN(jconst_idct_float_sse2):
 
 PD_1_414        times 4 dd  1.414213562373095048801689
 PD_1_847        times 4 dd  1.847759065022573512256366
 PD_1_082        times 4 dd  1.082392200292393968799446
 PD_M2_613       times 4 dd -2.613125929752753055713286
 PD_RNDINT_MAGIC times 4 dd  100663296.0 ; (float)(0x00C00000 << 3)
 PB_CENTERJSAMP  times 16 db CENTERJSAMPLE
 
@@ skipping 15 matching lines @@
 ; r12 = JSAMPARRAY output_buf
 ; r13 = JDIMENSION output_col
 
 %define original_rbp    rbp+0
 %define wk(i)           rbp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM]
 %define WK_NUM          2
 %define workspace       wk(0)-DCTSIZE2*SIZEOF_FAST_FLOAT
                                         ; FAST_FLOAT workspace[DCTSIZE2]
 
         align   16
-        global  EXTN(jsimd_idct_float_sse2)
+        global  EXTN(jsimd_idct_float_sse2) PRIVATE
 
 EXTN(jsimd_idct_float_sse2):
         push    rbp
         mov     rax,rsp                         ; rax = original rbp
         sub     rsp, byte 4
         and     rsp, byte (-SIZEOF_XMMWORD)     ; align to 128 bits
         mov     [rsp],rax
         mov     rbp,rsp                         ; rbp = aligned rbp
         lea     rsp, [workspace]
         collect_args
@@ skipping 386 matching lines @@
         pop     rbx
         uncollect_args
         mov     rsp,rbp         ; rsp <- aligned rbp
         pop     rsp             ; rsp <- original rbp
         pop     rbp
         ret
 
 ; For some reason, the OS X linker does not honor the request to align the
 ; segment unless we do this.
         align   16