Date: Thu, 22 Aug 1996 17:53:37 +1000 From: Bruce Evans <bde@zeta.org.au> To: current@freebsd.org, erich@lodgenet.com Subject: Re: does HAVE_FPU really work? Message-ID: <199608220753.RAA20229@godzilla.zeta.org.au>
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>(ttyp1@jake)# pwd >/usr/src/lib/msun >(ttyp1@jake)# make >cc -O -D_MULTI_LIBM -D_POSIX_MODE -D_IEEE_LIBM -c /usr/src/lib/msun/src/e_acos. >c -o e_acos.o >shouldn't it be compiling /usr/src/lib/msun/i387/e_acos.S ??? Yes. >Oh, well, make does a lot of stuff under the hood, so I proceeded to let >it compile, but the resultant library libm.so.2.0, has exactly the >same md5 as without HAVE_FPU defined --??? >then trying `make -ds e_acos.o', I get amongst other stuff: >SuffFindDeps (e_acos.o) > trying e_acos.s...not there > trying e_acos.S...got it > using existing source /usr/src/lib/msun/src/e_acos.c > applying .c -> .o to "e_acos.o" >looks like it finds e_acos.S, but uses e_acos.c anyway. didn't find It shouldn't use e_acos.c, since e_acos.c isn't among the source files if HAVE_FPU is defined (see the Makefile). Bruce
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