Am Mon, 18 Mar 2013 08:07:43 +0100 schrieb Benjamin Thaut <c...@benjamin-thaut.de>:
> I have a strange problem with gdc. The linker reports undefined > references to symbols, but exactly those symbols exist in the library > that I'm linking into the executable. The error message I get is: > > C:\Users\Benjamin\AppData\Local\Temp\cc4pUOfp.o:main.d:(.text+0x3a): > undefined reference to `_D6thBase2io8writeflnFAyaYm' > > But: > > nm libthBase64d_mingw.a | grep writefln > 000000000003c9b2 T _D6thBase2io8writeflnFAyaYm > > I'm building with: > > gdc -m64 > -I"C:\Users\Benjamin\Documents\d-projects\Spacecraft-git\game\..\..\druntime\import" > > -I"C:\Users\Benjamin\Documents\d-projects\Spacecraft-git\game\..\..\phobos" > -I"C:\Users\Benjamin\Documents\d-projects\Spacecraft-git\game\..\..\thBase\src" > > -fversion=NOGCSAFE -o "test.exe" > -L"C:\Users\Benjamin\Documents\d-projects\Spacecraft-git\game\..\..\phobos" > -L. -lthBase64d_mingw -debuglib=phobosnogc64d_mingw -Wl,--verbose=2 > -defaultlib=phobosnogc64d_mingw -v -pipe -nostdinc main.d > > The verbose output of the linker also shows that it finds the correct > library file: > > attempt to open > C:\Users\Benjamin\Documents\d-projects\Spacecraft-git\game\..\..\phobos/libthBase64d_mingw.dll.a > > failed > attempt to open > C:\Users\Benjamin\Documents\d-projects\Spacecraft-git\game\..\..\phobos/thBase64d_mingw.dll.a > > failed > attempt to open > C:\Users\Benjamin\Documents\d-projects\Spacecraft-git\game\..\..\phobos/libthBase64d_mingw.a > > failed > attempt to open > C:\Users\Benjamin\Documents\d-projects\Spacecraft-git\game\..\..\phobos/thBase64d_mingw.lib > > failed > attempt to open > C:\Users\Benjamin\Documents\d-projects\Spacecraft-git\game\..\..\phobos/libthBase64d_mingw.dll > > failed > attempt to open > C:\Users\Benjamin\Documents\d-projects\Spacecraft-git\game\..\..\phobos/thBase64d_mingw.dll > > failed > attempt to open > C:\Users\Benjamin\Documents\d-projects\Spacecraft-git\game\..\..\phobos\libthBase64d_mingw.a > > failed > attempt to open ./libthBase64d_mingw.dll.a failed > attempt to open ./thBase64d_mingw.dll.a failed > attempt to open ./libthBase64d_mingw.a succeeded > > Any ideas what is going wrong here? > > Kind Regards > Benjamin Thaut Could it be this: http://stackoverflow.com/questions/8640642/gcc-link-order-changed Something changed in ld some time ago and the order in which libraries are passed to ld is now important. The library which defines _D6thBase2io8writeflnFAyaYm must be passed to ld first, the lib/object file using it second.
