Add PRIVATE flags to global symbols

simd/jcsample-sse2.asm

 ;
 ; jcsample.asm - downsampling (SSE2)
 ;
 ; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
 ;
 ; 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 22 matching lines @@
 ;
 
 %define img_width(b)    (b)+8           ; JDIMENSION image_width
 %define max_v_samp(b)   (b)+12          ; int max_v_samp_factor
 %define v_samp(b)       (b)+16          ; JDIMENSION v_samp_factor
 %define width_blks(b)   (b)+20          ; JDIMENSION width_blocks
 %define input_data(b)   (b)+24          ; JSAMPARRAY input_data
 %define output_data(b)  (b)+28          ; JSAMPARRAY output_data
 
         align   16
-        global  EXTN(jsimd_h2v1_downsample_sse2)
+        global  EXTN(jsimd_h2v1_downsample_sse2) PRIVATE
 
 EXTN(jsimd_h2v1_downsample_sse2):
         push    ebp
         mov     ebp,esp
 ;       push    ebx             ; unused
 ;       push    ecx             ; need not be preserved
 ;       push    edx             ; need not be preserved
         push    esi
         push    edi
 
@@ skipping 134 matching lines @@
 ;
 
 %define img_width(b)    (b)+8           ; JDIMENSION image_width
 %define max_v_samp(b)   (b)+12          ; int max_v_samp_factor
 %define v_samp(b)       (b)+16          ; JDIMENSION v_samp_factor
 %define width_blks(b)   (b)+20          ; JDIMENSION width_blocks
 %define input_data(b)   (b)+24          ; JSAMPARRAY input_data
 %define output_data(b)  (b)+28          ; JSAMPARRAY output_data
 
         align   16
-        global  EXTN(jsimd_h2v2_downsample_sse2)
+        global  EXTN(jsimd_h2v2_downsample_sse2) PRIVATE
 
 EXTN(jsimd_h2v2_downsample_sse2):
         push    ebp
         mov     ebp,esp
 ;       push    ebx             ; unused
 ;       push    ecx             ; need not be preserved
 ;       push    edx             ; need not be preserved
         push    esi
         push    edi
 
@@ skipping 133 matching lines @@
         pop     esi
 ;       pop     edx             ; need not be preserved
 ;       pop     ecx             ; need not be preserved
 ;       pop     ebx             ; unused
         pop     ebp
         ret
 
 ; For some reason, the OS X linker does not honor the request to align the
 ; segment unless we do this.
         align   16