[MacPorts] #63718: zvbi: build fails on 10.6_x32, perhaps related to implicit declaration of 'setjmp'

[MacPorts]

#63718: zvbi: build fails on 10.6_x32, perhaps related to implicit declaration of
'setjmp'
---------------------+----------------------
 Reporter:  mascguy  |      Owner:  mascguy
     Type:  defect   |     Status:  assigned
 Priority:  Normal   |  Milestone:
Component:  ports    |    Version:  2.7.1
 Keywords:  setjmp   |       Port:  zvbi
---------------------+----------------------
 New port `zvbi` is failing to build on 10.6_x32, due to `setjmp`-related
 errors. Looking more closely, it appears that it might be an implicit
 function declaration.

 However, the "architecture not supported" error is also a bit troubling.
 Need to dig into this a bit more though:

 {{{
 In file included from exp-gfx.c:1638:
 In file included from /opt/local/include/png.h:335:
 In file included from /opt/local/include/pngconf.h:51:
 In file included from /usr/include/setjmp.h:26:
 /usr/include/machine/setjmp.h:41:2: error: architecture not supported
 #error architecture not supported
  ^
 In file included from exp-gfx.c:1638:
 /opt/local/include/png.h:828:65: error: expected identifier
 PNG_FUNCTION(void, (PNGCAPI *png_longjmp_ptr), PNGARG((jmp_buf, int)),
 typedef);
                                                                 ^
 /opt/local/include/png.h:950:15: error: unknown type name 'jmp_buf'
 PNG_EXPORT(8, jmp_buf*, png_set_longjmp_fn, (png_structrp png_ptr,
               ^
 exp-gfx.c:1687:6: warning: implicit declaration of function 'setjmp' is
 invalid in C99 [-Wimplicit-function-declaration]
         if (PNG_SETJMP(png_ptr))
             ^
 exp-gfx.c:1647:27: note: expanded from macro 'PNG_SETJMP'
 #  define PNG_SETJMP(ptr) setjmp(png_jmpbuf(ptr))
                           ^
 exp-gfx.c:1687:6: warning: declaration of built-in function 'setjmp'
 requires the declaration of the 'jmp_buf' type, commonly provided in the
 header <setjmp.h>. [-Wincomplete-setjmp-declaration]
 exp-gfx.c:1647:27: note: expanded from macro 'PNG_SETJMP'
 #  define PNG_SETJMP(ptr) setjmp(png_jmpbuf(ptr))
                           ^
 exp-gfx.c:1687:6: error: use of undeclared identifier 'jmp_buf'
 exp-gfx.c:1647:34: note: expanded from macro 'PNG_SETJMP'
 #  define PNG_SETJMP(ptr) setjmp(png_jmpbuf(ptr))
                                  ^
 /opt/local/include/png.h:953:57: note: expanded from macro 'png_jmpbuf'
       (*png_set_longjmp_fn((png_ptr), longjmp, (sizeof (jmp_buf))))
                                                         ^
 exp-gfx.c:1687:6: error: use of undeclared identifier 'longjmp'
 exp-gfx.c:1647:34: note: expanded from macro 'PNG_SETJMP'
 #  define PNG_SETJMP(ptr) setjmp(png_jmpbuf(ptr))
                                  ^
 /opt/local/include/png.h:953:39: note: expanded from macro 'png_jmpbuf'
       (*png_set_longjmp_fn((png_ptr), longjmp, (sizeof (jmp_buf))))
                                       ^
 5 warnings and 5 errors generated.
 }}}

 https://build.macports.org/builders/ports-10.6_i386-builder/builds/42155/steps
 /install-port/logs/stdio

-- 
Ticket URL: <https://trac.macports.org/ticket/63718>
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