Stuart, > ignoring nonexistent directory "/usr/local/include/mingw/mingw" > ignoring nonexistent directory "/usr/i686-pc-mingw32/include/usr/include/mingw" > [snip] > /usr/lib/gcc-lib/i686-pc-cygwin/3.2/include
It most likely is -- gcc seems to be using the wrong directories. Did you install the gcc-mingw and the mingw-runtime packages? Try [re]installing both. If you'd attached the output of "cygcheck -svr", as requested in <http://cygwin.com/problems.html>, it would have shown the list of all installed packages and confirmed or denied the above guess. Igor On 9 Jul 2003, Stuart F. Downing wrote: > I'm trying to compile code that calls _controlfp which is declared in > /usr/include/mingw/float.h, but when I include float.h, gcc doesn't > find the mingw float.h first, it finds the gcc header first. > > Here is the code > > <CODE> > #include <float.h> > > int main() > { > unsigned int uiFPControl; > unsigned int uiFPNewControl; > > uiFPControl = _controlfp( 0 , 0 ); > uiFPControl |= _EM_ZERODIVIDE; > uiFPNewControl = _controlfp( uiFPControl , _MCW_EM ); > } > </CODE> > > gcc -v -mno-cygwin -c foo.c > > produces this... > > <OUTPUT> > Reading specs from /usr/lib/gcc-lib/i686-pc-mingw32/3.2/specs > Configured with: /netrel/src/gcc-3.2-3/configure --enable-languages=c,c++,f77,java > --enable-libgcj --enable-threads=posix --with-system-zlib --enable-nls > --without-included-gettext --enable-interpreter --disable-sjlj-exceptions > --disable-version-specific-runtime-libs --enable-shared --build=i686-pc-linux > --host=i686-pc-cygwin --target=i686-pc-cygwin --enable-haifa --prefix=/usr > --exec-prefix=/usr --sysconfdir=/etc --libdir=/usr/lib > --includedir=/nonexistent/include --libexecdir=/usr/sbin > Thread model: posix > gcc version 3.2 20020927 (prerelease) > /usr/lib/gcc-lib/i686-pc-mingw32/3.2/cc1.exe -lang-c -v -D__GNUC__=3 > -D__GNUC_MINOR__=2 -D__GNUC_PATCHLEVEL__=0 -D__GXX_ABI_VERSION=102 -D_X86_=1 > -D_X86_=1 -Asystem=winnt -D__NO_INLINE__ -D__STDC_HOSTED__=1 -Acpu=i386 > -Amachine=i386 -Di386 -D__i386 -D__i386__ -D__tune_i686__ -D__tune_pentiumpro__ > -D__tune_pentium2__ -D__tune_pentium3__ -D__stdcall=__attribute__((__stdcall__)) > -D__fastcall=__attribute__((__fastcall__)) -D__cdecl=__attribute__((__cdecl__)) > -D_stdcall=__attribute__((__stdcall__)) -D_fastcall=__attribute__((__fastcall__)) > -D_cdecl=__attribute__((__cdecl__)) -D__declspec(x)=__attribute__((x)) -D__i386__ > -D__i386 -D__MSVCRT__ -D__MINGW32__ -DWIN32 -D_WIN32 -D__WIN32 -D__WIN32__ -DWINNT > -isystem /usr/lib/gcc-lib/i686-pc-mingw32/3.2/../../../../include/w32api -isystem > /usr/lib/gcc-lib/i686-pc-mingw32/3.2/../../../../i686-pc-mingw32/lib/../../include/w32api > foo.c -quiet -dumpbase foo.c -mno-cygwin -version -o > /cygdrive/c/DOCUME~1/sdowning/LOCALS~1/Temp/cc3uqCbc.s > GNU CPP version 3.2 20020927 (prerelease) (cpplib) (80386, BSD syntax) > GNU C version 3.2 20020927 (prerelease) (i686-pc-cygwin) > compiled by GNU C version 3.2 20020927 (prerelease). > ignoring nonexistent directory "/usr/local/include/mingw/mingw" > ignoring nonexistent directory "/usr/i686-pc-mingw32/include/usr/include/mingw" > ignoring duplicate directory "/usr/i686-pc-mingw32/lib/../../include/w32api" > #include "..." search starts here: > #include <...> search starts here: > /usr/include/w32api > /usr/lib/gcc-lib/i686-pc-cygwin/3.2/include > /usr/include/mingw > End of search list. > foo.c: In function `main': > foo.c:9: `_EM_ZERODIVIDE' undeclared (first use in this function) > foo.c:9: (Each undeclared identifier is reported only once > foo.c:9: for each function it appears in.) > foo.c:10: `_MCW_EM' undeclared (first use in this function) > </OUTPUT> > > gcc -E -mno-cygwin foo.c > > produces > > <OUTPUT> > # 1 "foo.c" > # 1 "<built-in>" > # 1 "<command line>" > # 1 "foo.c" > # 1 "/usr/lib/gcc-lib/i686-pc-cygwin/3.2/include/float.h" 1 3 > # 2 "foo.c" 2 > > int main() > { > unsigned int uiFPControl; > unsigned int uiFPNewControl; > > uiFPControl = _controlfp( 0 , 0 ); > uiFPControl |= _EM_ZERODIVIDE; > uiFPNewControl = _controlfp( uiFPControl , _MCW_EM ); > } > </OUTPUT> > > Clearly from the include order in the -v output and -E output, the > compiler is not finding the mingw float.h first. Looking at float.h, > it #include_next's float.h, so clearly it is designed to supercede the > system header. > > I'm able to work around this by explicitly adding -I/usr/include/mingw > to the command line, but this produces an ugly warning message... > > cc1: warning: changing search order for system directory "/usr/include/mingw" > cc1: warning: as it has already been specified as a non-system directory > > I'm using the 1.3.22-1 cygwin setup/install and installed both gcc > 3.2-3 and gcc-mingw. > > Is this an installation problem? -- http://cs.nyu.edu/~pechtcha/ |\ _,,,---,,_ [EMAIL PROTECTED] ZZZzz /,`.-'`' -. ;-;;,_ [EMAIL PROTECTED] |,4- ) )-,_. ,\ ( `'-' Igor Pechtchanski, Ph.D. '---''(_/--' `-'\_) fL a.k.a JaguaR-R-R-r-r-r-.-.-. Meow! "I have since come to realize that being between your mentor and his route to the bathroom is a major career booster." -- Patrick Naughton -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
