I noticed the following lines in file
³/sw/src/libpng3-1.2.5-2/libpng-1.2.5/scripts/Makefile.darwin²:
> PNGMAJ = 0
> PNGMIN = 1.2.5
> PNGVER = $(PNGMAJ).$(PNGMIN)
> LIBNAME = libpng12
Therefore, the following can¹t possibly work:
> $(LIBNAME).$(PNGVER).dylib: $(OBJSDLL)
> $(CC) -dynamiclib \
> -install_name $(LIBPATH)/$(LIBNAME).$(PNGMAJ).dylib \
> -current_version $(PNGVER) -compatibility_version $(PNGVER) \
> -o $(LIBNAME).$(PNGVER).dylib \
> $(OBJSDLL) -L$(ZLIBLIB) -lz
$(PNGVER) evaluates to ³0.1.2.5² which is ill-formatted, according to the ld
man page. The ld man page requires that
-compatibility_version number
Specifies the compatibility version number of the library.
When a library is loaded by dyld, the compatibility version
is checked and if the program's version is greater that the
library's version, it is an error. The format of number is
X[.Y[.Z]] where X must be a positive non-zero number less
than or equal to 65535
So 1.2.5 would be valid, but 0.1.2.5 isn¹t.
It would seem that
³/sw/src/libpng3-1.2.5-2/libpng-1.2.5/scripts/Makefile.darwin² is broken.
$ld -v
@(#)PROGRAM:ld PROJECT:ld64-85.2.1
$ uname -a
Darwin hostname 9.8.0 Darwin Kernel Version 9.8.0: Wed Jul 15 16:57:01 PDT
2009; root:xnu-1228.15.4~1/RELEASE_PPC Power Macintosh
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