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I have a C++ library that is being cross-compiled by Gradle on a Mac for Windows, using mingw-w64. I get a "bad -rpath option" when the linker tries to link the binaries.

There are a complicated linker search paths in the debug output below that I have removed for clarity, but they are all ok. However, there is one part which seems to be wrong - it looks like something is being added to the search paths by mistake.

:linkWindows-x8664DebugTestSharedLibrary
Using built-in specs.
COLLECTGCC=/usr/local/bin/mingw-w64/mingw-w64-x8664/mingw/bin/g++
Target: x8664-w64-mingw32
Configured with: ../source/gcc-4.8.3/configure --build=x8664-apple-darwin13.2.0 --target=x8664-w64-mingw32 --disable-nls --disable-multilib --prefix=/usr/local/bin/mingw-w64/mingw-w64-x8664 --with-sysroot=/usr/local/bin/mingw-w64/mingw-w64-x8664 --with-mpc=/usr/local/bin/mingw-w64/pkgs/mpc/mpc-1.0.2-x8664 --with-mpfr=/usr/local/bin/mingw-w64/pkgs/mpfr/mpfr-3.1.2-x8664 --with-gmp=/usr/local/bin/mingw-w64/pkgs/gmp/gmp-6.0.0a-x8664 --with-host-libstdcxx='-lstdc++ ' --with-cloog=/usr/local/bin/mingw-w64/pkgs/cloog/cloog-0.18.0-x8664 --with-isl=/usr/local/bin/mingw-w64/pkgs/isl/isl-0.11.1-x8664 --enable-languages=c,c++ --enable-threads=win32 --enable-fully-dynamic-string --enable-lto
Thread model: win32
gcc version 4.8.3 (GCC)
COMPILERPATH=/usr/local/bin/mingw-w64/mingw-w64-x8664/x8664-w64-mingw32/bin/../lib/gcc/x8664-w64-mingw32/4.8.3/../../../../x8664-w64-mingw32/bin/
LIBRARYPATH=/usr/local/bin/mingw-w64/mingw-w64-x8664/x8664-w64-mingw32/bin/../lib/gcc/x8664-w64-mingw32/4.8.3/:/usr/local/bin/mingw-w64/mingw-w64-x8664/x8664-w64-mingw32/bin/../lib/gcc/:/usr/local/bin/mingw-w64/mingw-w64-x8664/x8664-w64-mingw32/bin/../lib/gcc/x8664-w64-mingw32/4.8.3/../../../../x8664-w64-mingw32/lib/../lib/:/usr/local/bin/mingw-w64/mingw-w64-x8664/mingw/lib/../lib/:/usr/local/bin/mingw-w64/mingw-w64-x8664/x8664-w64-mingw32/bin/../lib/gcc/x8664-w64-mingw32/4.8.3/../../../../x8664-w64-mingw32/lib/:/usr/local/bin/mingw-w64/mingw-w64-x8664/mingw/lib/
COLLECTGCCOPTIONS='-shared' '-o' '/Users/john/git/test/build/binaries/testSharedLibrary/windows-x8664Debug/libtest.dylib' '-L/Users/john/git/test/build/nar-dependencies/compiletestWindows-x8664Debug/lib' '-v' '-fno-use-linker-plugin' '-shared-libgcc' '-mtune=generic' '-march=x86-64' 
/usr/local/bin/mingw-w64/mingw-w64-x8664/x8664-w64-mingw32/bin/../lib/gcc/x8664-w64-mingw32/4.8.3/../../../../x8664-w64-mingw32/bin/ld --sysroot=/usr/local/bin/mingw-w64/mingw-w64-x8664 -m i386pep --shared -Bdynamic -e DllMainCRTStartup --enable-auto-image-base -o /Users/john/git/test/build/binaries/testSharedLibrary/windows-x8664Debug/libtest.dylib /usr/local/bin/mingw-w64/mingw-w64-x8664/x8664-w64-mingw32/bin/../lib/gcc/x8664-w64-mingw32/4.8.3/../../../../x8664-w64-mingw32/lib/../lib/dllcrt2.o /usr/local/bin/mingw-w64/mingw-w64-x8664/x8664-w64-mingw32/bin/../lib/gcc/x8664-w64-mingw32/4.8.3/../../../../x8664-w64-mingw32/lib/../lib/crtbegin.o -LseriesOfSearchFoldersHereEachWithMinusLFlag **@/var/folders/75/fsklv28523d2gx1wth3rc7y0000101/T//ccOUlRAe** -lmingw32 -lgccs -lgcc -lmoldname -lmingwex -lmsvcrt -ladvapi32 -lshell32 -luser32 -lkernel32 -lmingw32 -lgccs -lgcc -lmoldname -lmingwex -lmsvcrt /usr/local/bin/mingw-w64/mingw-w64-x8664/x8664-w64-mingw32/bin/../lib/gcc/x8664-w64-mingw32/4.8.3/../../../../x8664-w64-mingw32/lib/../lib/crtend.o

Error message reads:

/usr/local/bin/mingw-w64/mingw-w64-x8664/x8664-w64-mingw32/bin/../lib/gcc/x8664-w64-mingw32/4.8.3/../../../../x8664-w64-mingw32/bin/ld: bad -rpath option 
FAILED

This appears to be the offending bit that is causing the problem: @/var/folders/75/fsklv28523d2gx1wth3rc7y0000101/T//ccOUlRAe

What is that and why is it there?

John
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1 Answers1

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Did you already solve it?

Most probably the paths to search for libraries is generated by Gradle Native as well. I have no clue about the directory structure. Which version of Gradle are you using? Did you read the user guide about native binaries? Are you able to share the gradle file? (As native support is incubating, it is likely to change quite a bit. It did for me, over the past versions)

Gijs
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