On Thu, 17 Jan 2013, Peter Åstrand wrote:
When building a shared library of FLTK 1.3.2 on Mac OS X 10.4 (Linux cross
compilation), we get this exotic error message:
Linking CXX shared library ../lib/libfltk.dylib
/usr/lib/gcc/i686-apple-darwin8/4.5.3/../../../../i686-apple-darwin8/bin/ld:
CMakeFiles/fltk_SHARED.dir/Fl_Native_File_Chooser_MAC.mm.o literal pointer
section (__OBJC,__cls_refs) does not have is exactly one relocation entry for
each pointer
It turns out that this error only occurs when using -O3. Thus, one
solution is to use DCMAKE_BUILD_TYPE=Debug. I decided to use this method
instead:
-DCMAKE_BUILD_TYPE=Release -DCMAKE_C_FLAGS_RELEASE="-Os"
-DCMAKE_CXX_FLAGS_RELEASE="-Os"
The problem with -O3 may very well be specific to our combination of
compiler, binutils etc. We are using GCC 4.5.3.
Rgds,
---
Peter Åstrand ThinLinc Chief Developer
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