Here I come again. You were right, gcc-c++ wasn't installed. After installing it I have tried again and now I get another kind of error (my system is in spanish sorry): [root@brigida srpm]# rpmbuild --rebuild wxhaskell-0.9.4-1.src.rpm Installing wxhaskell-0.9.4-1.src.rpm warning: user petersen does not exist - using root warning: group petersen does not exist - using root warning: user petersen does not exist - using root warning: group petersen does not exist - using root warning: user petersen does not exist - using root warning: group petersen does not exist - using root Executing(%prep): /bin/sh -e /var/tmp/rpm-tmp.12579 + umask 022 + cd /usr/src/redhat/BUILD + cd /usr/src/redhat/BUILD + rm -rf wxhaskell-0.9.4 + /usr/bin/unzip -qq /usr/src/redhat/SOURCES/wxhaskell-src-0.9.4.zip + STATUS=0 + '[' 0 -ne 0 ']' + cd wxhaskell-0.9.4 ++ /usr/bin/id -u + '[' 0 = 0 ']' + /bin/chown -Rhf root . ++ /usr/bin/id -u + '[' 0 = 0 ']' + /bin/chgrp -Rhf root . + /bin/chmod -Rf a+rX,u+w,g-w,o-w . + exit 0 Executing(%build): /bin/sh -e /var/tmp/rpm-tmp.47335 + umask 022 + cd /usr/src/redhat/BUILD + cd wxhaskell-0.9.4 + ./configure --hc=ghc-6.4 --hcpkg=ghc-pkg-6.4 --libdir=/usr/lib/ghc-6.4/wx --with-opengl checking system: wx-config found ghc-6.4 found ghc-pkg-6.4 found haddock found install program found creating configuration files: config config/config.mk config/wxcore.pkg config/wx.pkg config/wxhaskell-register.bat config/wxhaskell-unregister.bat config/setcd config/macosx-install.info config/macosx-postinstall config/macosx-app config/wxhaskell.spec config/prologue.txt config/cache.txt configuration: library: wxhaskell-0.9.4 (release 0) compiler: ghc-6.4 wxwidgets: gtk-2.6.3 with openGL: yes library dir: /usr/lib/ghc-6.4/wx done: type 'make' to build wxhaskell. type 'make install' to install wxhaskell. type 'make help' to receive help on all other make targets + make all doc g++ -c wxc/src/ewxw_main.cpp -o out/wxc/ewxw_main.o -MD -I/usr/lib/wx/include/gtk2-unicode-release-2.6 -I/usr/include/wx-2.6 -DGTK_NO_CHECK_CASTS -D__WXGTK__ -D_FILE_OFFSET_BITS=64 -D_LARGE_FILES -DNO_GCC_PRAGMA -Iwxc/include wxc/include/wrapper.h: In constructor ‘ELJDragDataObject::ELJDragDataObject(void*, char*, int (*)(void*), int (*)(void*, void*), int (*)(void*, int, const void*))’: wxc/include/wrapper.h:172: error: no se encuentra una función coincidente para la llamada a ‘wxDataObjectSimple::wxDataObjectSimple(char*&)’ /usr/include/wx-2.6/wx/dataobj.h:249: nota: los candidatos son: wxDataObjectSimple::wxDataObjectSimple(const wxDataObjectSimple&) /usr/include/wx-2.6/wx/dataobj.h:202: nota: wxDataObjectSimple::wxDataObjectSimple(const wxDataFormat&) wxc/include/wrapper.h: In constructor ‘ELJTextValidator::ELJTextValidator(void*, void*, void*, long int)’: wxc/include/wrapper.h:257: error: ambiguous overload para ‘operator=’ en ‘((ELJTextValidator*)this)->ELJTextValidator::buf = (const char*)_txt’ /usr/include/wx-2.6/wx/string.h:627: nota: los candidatos son: wxString& wxString::operator=(int) <coincidencia cercana> /usr/include/wx-2.6/wx/string.h:846: nota: wxString& wxString::operator=(wxChar) <coincidencia cercana> /usr/include/wx-2.6/wx/string.h:860: nota: wxString& wxString::operator=(const wxWCharBuffer&) <coincidencia cercana> /usr/include/wx-2.6/wx/string.h:611: nota: wxString& wxString::operator=(const wxString&) <coincidencia cercana> wxc/include/wrapper.h: At global scope: wxc/include/wrapper.h:330: error: tipos de devolución en conflicto especificados para ‘virtual char* ELJConnection::OnRequest(const wxString&, const wxString&, int*, wxIPCFormat)’ /usr/include/wx-2.6/wx/ipcbase.h:85: error: sustituyendo ‘virtual wxChar* wxConnectionBase::OnRequest(const wxString&, const wxString&, int*, wxIPCFormat)’ wxc/include/wrapper.h: In constructor ‘ELJConnection::ELJConnection(char*, int)’: wxc/include/wrapper.h:300: error: no se encuentra una función coincidente para la llamada a ‘wxTCPConnection::wxTCPConnection(char*&, int&)’ /usr/include/wx-2.6/wx/sckipc.h:106: nota: los candidatos son: wxTCPConnection::wxTCPConnection(const wxTCPConnection&) /usr/include/wx-2.6/wx/sckipc.h:65: nota: wxTCPConnection::wxTCPConnection() /usr/include/wx-2.6/wx/sckipc.h:64: nota: wxTCPConnection::wxTCPConnection(wxChar*, int) wxc/include/wrapper.h: In constructor ‘ELJPrintout::ELJPrintout(void*, void*, void*, void*, void*, void*, void*, void*, void*, void*)’: wxc/include/wrapper.h:412: error: la conversión de ‘char*’ a ‘const wxString’ es ambigua /usr/include/wx-2.6/wx/string.h:643: nota: los candidatos son: wxString::wxString(wxChar, size_t) <coincidencia cercana> /usr/include/wx-2.6/wx/string.h:633: nota: wxString::wxString(int) <coincidencia cercana> wxc/include/wrapper.h: In constructor ‘ELJPreviewFrame::ELJPreviewFrame(void*, void*, void*, void*, void*, void*, void*, int, int, int, int, int)’: wxc/include/wrapper.h:474: error: la conversión de ‘char*’ a ‘const wxString’ es ambigua /usr/include/wx-2.6/wx/string.h:643: nota: los candidatos son: wxString::wxString(wxChar, size_t) <coincidencia cercana> /usr/include/wx-2.6/wx/string.h:633: nota: wxString::wxString(int) <coincidencia cercana> wxc/include/wrapper.h: At global scope: wxc/include/wrapper.h:534: error: el argumento por defecto para el parámetro del tipo ‘const wxString&’ tiene el tipo ‘const char [11]’ make: *** [out/wxc/ewxw_main.o] Error 1 error: Bad exit status from /var/tmp/rpm-tmp.47335 (%build) RPM build errors: user petersen does not exist - using root group petersen does not exist - using root user petersen does not exist - using root group petersen does not exist - using root user petersen does not exist - using root group petersen does not exist - using root Bad exit status from /var/tmp/rpm-tmp.47335 (%build) Thanks everybody for your help --------------------------------- LLama Gratis a cualquier PC del Mundo. 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