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D - linking c++ and D together

I have a question on how to link to D.
I have tried to make a small test example, which contain.
  main.c
  dclass.h
  dclass.d
I compile those files by
  dmd -c dclass.d
  g++ -L../../dmd/lib -lphobos2 -lstdc++ main.o dclass.o
And this of cause doesn't work. I can not if information anywhere how to do this. Dose someone know how to do this? PS The test example is attached as a tgz begin 644 linkd2c.tgz M'XL(`*O7J4<``^Q;?7`31Y9OR0(+Q4;F,X1\*2$4$`<CV9:-$2$8, X01`RV MV7#A+H3XLMI;%0<I7YU]5EUY61\HNTKF7O?TR*.Q9./PL4M5IMPS\^ON]_J] MU^^][AEY6IK;7,% 20NZA8<9CHKR<GRU5%K+"+9(F!R6BE)D,5=:2\O*2TM+ M*Y'94FJN,".3^58*)1]<D'4%3";4[`H$6;=OFG[N0/!V"'1[CW9_"]?F-K6T MN7S[;`9O>X<_P)J";$L)%*_?9C`0_S"U2)?O&SJXIC9O\P:#R63J]'M;3*P[ MR)I6KX$6$SZZ`E[6W>9;_;!$4(*;'UYCPXVXA`PAPY]:X^\.Y4'GJ?56CC%C M_)>9)^._TBK%?^EW\7\[CA5>CZ_%[3$U/KEU9W5=7>.V1L,*P%Z?6UFES *F M">"+*VAB6]TFCQ?FT.0*[./:W3[6Q/JE_8BGQ+3=8_+YE83>H,GG=K>X6QXS M]6#VKAY3ETNB 9F6Z$J(/:3C/B [*5X)Q09%A`.W;892*=DP3$HXNQYSH&S3 M2CS64UX;%7::Z5#LJ3 MI[J6E*R#OY M7ED(["EO0_'Z6/>^ *M-'AOKVP_E$9.[&P9FW?3I`R\:YZ&LA5(,9044G`-, M4!Z%8H%2"J4,2?YHA5(!I1))]JS",F-[4'E> 7((RE$JQ_<T,Y>K&B(OD2</ M+LQO,93QS'9_YV0S6 2E2$OTR+`PCD.SEOH+U<4A)$92X,=X/A"Y<YZ"NMKW MND5.ZZ),LE:P%UBN[MX+Q'W,.&EHQ?XE<DFYUZG&%Y\_^ZL"=`11'ZA3^&HY M>?0"".EY+107#W!5(A<C)OV(-)&3AV<2GMZ3/44#S)<:RUGC"4>B^%\\O#WA M1-E>,)YP3A1_[N$=$\!BPL-S<1#I(HADR2[251"IV^`1[%=!E(MC<SV#S,5O M#F!1[,#W(NJI\0B.B]?^PWCB`N]([LG"(24X8S9G$J3ADCR'I4DAPC&EY(C- MH8=%[I+(Q<7ZPM/&8]QE&Q<SOK[L&]S->9EWQD8+X%Y 8I&D] /L+P%MW[_R M]GY R"O&B83Z$:>H$ARQ7WZI%5Y8<JY.,<*2TV""T>-?BR)V_B+)]QZKVQME M.6$WV.R)H([_9"P/)CWJ&.*=P[QC!+RICYE?KF&KH8O>9A_N7#W(C&-O`X;Z MI,V9RF27'!O%VBY&1Z3\H<.QEL+SR3W<NC4/A\$/23"\2<[_1,[OR<E) *[= MR,;HV2<D4ZX7'`4"HX<$"L$$<PO!%MUHX$-)F#GL[\L$+M$W]Q"3$KF4G`E$ M$EA F`+ P/>V0`NP"!A[WX+::!1C/MI*:A< MGJPMPWN==`VV-M!-V'"&[C. 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Feb 06 2008