fix some warning

ZBarSDK.podspec

@@ -6,7 +6,7 @@ Pod::Spec.new do |s|
   s.summary  = 'QR and barcode scan library.'
   s.homepage = 'http://zbar.sourceforge.net/'
   s.author   = { 'Jeff Brown' => 'spadix@users.sourceforge.net' }
-  s.source   = { :git => 'https://github.com/cduhn/ZBar.git', :tag => 'iPhoneSDK-1.3.1' }
+  s.source   = { :git => 'https://github.com/lerosua/ZBarSDK.git', :tag =>"fixWarning-1.3.1" }
 
   s.description  = 'ZBar is an open source software suite for reading bar codes from various sources, such as video streams, ' \
                    'image files and raw intensity sensors. It supports many popular symbologies (types of bar codes) including ' \
@@ -25,6 +25,7 @@ Pod::Spec.new do |s|
   s.frameworks   = 'AVFoundation', 'CoreGraphics', 'CoreMedia', 'CoreVideo', 'QuartzCore'
 
   s.library      = 'iconv'
+  s.requires_arc = false
 
   s.xcconfig = { "EXCLUDED_SOURCE_FILE_NAMES[sdk=iphoneos*][arch=*]"        => 'ZBarReaderViewImpl_Simulator.m',
                  "EXCLUDED_SOURCE_FILE_NAMES[sdk=iphonesimulator*][arch=*]" => 'ZBarReaderViewImpl_Capture.m ZBarCaptureReader.m',
@@ -33,4 +34,4 @@ Pod::Spec.new do |s|
   s.prefix_header_file = 'iphone/include/prefix.pch'
 
   s.compiler_flags = '-w'
-end
+end

zbar/decoder/code93.c

@@ -158,6 +158,7 @@ decode_start (zbar_decoder_t *dcode)
     if(dir) {
         if(decode_e(pair_width(dcode, 0), s, 9))
             return(ZBAR_NONE);
+#pragma unused(qz)
         qz = get_width(dcode, 8);
     }
 

zbar/decoder/databar.c

@@ -710,7 +710,7 @@ match_segment_exp (zbar_decoder_t *dcode,
     databar_decoder_t *db = &dcode->databar;
     int bestsegs[22], i = 0, segs[22], seq[22];
     int ifixed = seg - db->segs, fixed = IDX(seg), maxcnt = 0;
-    int iseg[DATABAR_MAX_SEGMENTS];
+    int iseg[DATABAR_MAX_SEGMENTS]={0};
     unsigned csegs = db->csegs, width = seg->width, maxage = 0x7fff;
 
     bestsegs[0] = segs[0] = seq[1] = -1;

zbar/error.c

@@ -175,6 +175,7 @@ const char *_zbar_error_string (const void *container,
 #endif
     else {
         err->buf = realloc(err->buf, len + 2);
+#pragma unused(len)
         len += sprintf(err->buf + len, "\n");
     }
     return(err->buf);

zbar/image.c

@@ -247,6 +247,7 @@ int zbar_image_write (const zbar_image_t *img,
     FILE *f;
     zimg_hdr_t hdr;
     strcpy(filename, filebase);
+#pragma unused(n)
     if((img->format & 0xff) >= ' ')
         n = snprintf(filename, len, "%s.%.4s.zimg",
                      filebase, (char*)&img->format);

zbar/img_scanner.c

@@ -678,6 +678,7 @@ int zbar_scan_image (zbar_image_scanner_t *iscn,
     img->syms = syms;
 
     w = img->width;
+#pragma unused(h)
     h = img->height;
     cx1 = img->crop_x + img->crop_w;
     assert(cx1 <= w);