I have the following: Code: ./configure CFLAGS="-O2 -fprofile-generate" LDFLAGS="-fprofile-generate" --prefix=/home/ema/winepf OK Code: make depend OK Code: make -j2 OK - using dual core Code: gcc -c -I. -I. -I../../include -I../../include -D__WINESRC__ -D_REENTRANT -fPIC -Wall -pipe -fno-strict-aliasing -Wdeclaration-after-statement -Wwrite-strings -Wtype-limits -Wpointer-arith -O2 -fprofile-generate -o main.o main.c ../../tools/winegcc/winegcc -B../../tools/winebuild -shared ./acledit.spec main.o -o acledit.dll.so -lkernel32 ../../libs/port/libwine_port.a -fprofile-generate main.o: In function `FMExtensionProcW': main.c:(.text+0x49): undefined reference to `__gcov_indirect_call_profiler' main.o: In function `DllMain': main.c:(.text+0x114): undefined reference to `__gcov_indirect_call_profiler' main.o: In function `global constructors keyed to 65535_0_main.c': main.c:(.text+0x21c): undefined reference to `__gcov_init' main.o:(.data.rel+0x24): undefined reference to `__gcov_merge_add' ../../dlls/winecrt0/libwinecrt0.a(dll_entry.o): In function `__wine_spec_dll_entry': dll_entry.c:(.text+0x4e): undefined reference to `__gcov_indirect_call_profiler' ../../dlls/winecrt0/libwinecrt0.a(dll_entry.o): In function `global constructors keyed to 65535_0_dll_entry.c': dll_entry.c:(.text+0x19c): undefined reference to `__gcov_init' ../../dlls/winecrt0/libwinecrt0.a(dll_entry.o):(.data.rel+0x24): undefined reference to `__gcov_merge_add' ../../dlls/winecrt0/libwinecrt0.a(init.o): In function `__wine_spec_init': init.c:(.text+0x40): undefined reference to `__gcov_indirect_call_profiler' ../../dlls/winecrt0/libwinecrt0.a(init.o): In function `__wine_spec_init_ctor': init.c:(.text+0xd0): undefined reference to `__gcov_indirect_call_profiler' init.c:(.text+0x12c): undefined reference to `__gcov_indirect_call_profiler' ../../dlls/winecrt0/libwinecrt0.a(init.o): In function `global constructors keyed to 65535_0_init.c': init.c:(.text+0x1ac): undefined reference to `__gcov_init' ../../dlls/winecrt0/libwinecrt0.a(init.o):(.data.rel+0x24): undefined reference to `__gcov_merge_add' ../../dlls/winecrt0/libwinecrt0.a(stub.o): In function `__wine_spec_unimplemented_stub': stub.c:(.text+0x44): undefined reference to `__gcov_indirect_call_profiler' ../../dlls/winecrt0/libwinecrt0.a(stub.o): In function `global constructors keyed to 65535_0_stub.c': stub.c:(.text+0xbc): undefined reference to `__gcov_init' ../../dlls/winecrt0/libwinecrt0.a(stub.o):(.data.rel+0x24): undefined reference to `__gcov_merge_add' collect2: ld returned 1 exit status winegcc: gcc failed make[2]: *** [acledit.dll.so] Error 2 make[2]: Leaving directory `/home/ema/wine-git/dlls/acledit' make[1]: *** [acledit/__install__] Error 2 make[1]: Leaving directory `/home/ema/wine-git/dlls' make: *** [dlls/__install__] Error 2 Failed Anyone knows why? Cheers,