Makefile generator: support shared library linking.
Makefile generator: support shared library linking.

git-svn-id: e7e1075985beda50ea81ac4472467b4f6e91fc78@444 78cadc50-ecff-11dd-a971-7dbc132099af

svn2github/kgyp,clar/gyp,ttyangf/pdfium_gyp,clar/gyp,xin3liang/platform_external_chromium_org_tools_gyp,trafi/gyp,sdklite/gyp,mkrautz/gyp-libmumble,IllusionRom-deprecated/android_platform_external_chromium_org_tools_gyp,Omegaphora/external_chromium_org_tools_gyp,cysp/gyp,lukeweber/gyp-override,AWhetter/gyp,duanhjlt/gyp,AOSPU/external_chromium_org_tools_gyp,android-ia/platform_external_chromium_org_tools_gyp,carlTLR/gyp,tarc/gyp,alexcrichton/gyp,ryfx/gyp,lianliuwei/gyp,luvit/gyp,ttyangf/pdfium_gyp,LazyCodingCat/gyp,LazyCodingCat/gyp,brson/gyp,mumble-voip/libmumble-gyp,okumura/gyp,svn2github/kgyp,dougbeal/gyp,chromium/gyp,Chilledheart/gyp,turbulenz/gyp,sloanyang/gyp,erikge/watch_gyp,svn2github/kgyp,alexcrichton/gyp,Phuehvk/gyp,msc-/gyp,IllusionRom-deprecated/android_platform_external_chromium_org_tools_gyp,bulldy80/gyp_unofficial,okwasi/gyp,tarc/gyp,bulldy80/gyp_unofficial,xin3liang/platform_external_chromium_org_tools_gyp,bulldy80/gyp_unofficial,Jack-Q/GYP-copy,mistydemeo/gyp,Jack-Q/GYP-copy,sanyaade-teachings/gyp,carlTLR/gyp,geekboxzone/lollipop_external_chromium_org_tools_gyp,okwasi/gyp,yinquan529/platform-external-chromium_org-tools-gyp,sfiera/gyp,Omegaphora/external_chromium_org_tools_gyp,yjhjstz/gyp,erikge/watch_gyp,saghul/gyn,mgamer/gyp,mgamer/gyp,trafi/gyp,enkripsi/gyp,mistydemeo/gyp,mgamer/gyp,sdklite/gyp,pyokagan/gyp,yjhjstz/gyp,ryfx/gyp,lukeweber/gyp-override,azunite/gyp_20150930,mumble-voip/libmumble-gyp,carlTLR/gyp,Phuehvk/gyp,bdarnell/gyp,android-ia/platform_external_chromium_org_tools_gyp,AOSPU/external_chromium_org_tools_gyp,ttyangf/pdfium_gyp,channing/gyp,enkripsi/gyp,yjhjstz/gyp,trafi/gyp,erikge/watch_gyp,amoikevin/gyp,duanhjlt/gyp,cchamberlain/gyp,okumura/gyp,chromium/gyp,channing/gyp,Danath/gyp,omasanori/gyp,springmeyer/gyp,pandaxcl/gyp,ryfx/gyp,alexcrichton/gyp,ryfx/gyp,azunite/gyp,tarc/gyp,enkripsi/gyp,mapbox/gyp,sloanyang/gyp,chromium/gyp,saghul/gyn,yangrongwei/gyp,bdarnell/gyp,yjhjstz/gyp,enkripsi/gyp,saghul/gyn,AOSPU/external_chromium_org_tools_gyp,mistydemeo/gyp,bdarnell/gyp,kevinchen3315/gyp-git,ttyangf/gyp,cysp/gyp,cysp/gyp,erikge/watch_gyp,tarc/gyp,svn2github/gyp,clar/gyp,brson/gyp,luvit/gyp,brson/gyp,openpeer/webrtc-gyp,Jack-Q/GYP-copy,IllusionRom-deprecated/android_platform_external_chromium_org_tools_gyp,channing/gyp,chromium/gyp,springmeyer/gyp,msc-/gyp,svn2github/kgyp,geekboxzone/lollipop_external_chromium_org_tools_gyp,sport-monkey/GYP,Chilledheart/gyp,yangrongwei/gyp,yangrongwei/gyp,msc-/gyp,trafi/gyp,mapbox/gyp,msc-/gyp,omasanori/gyp,adblockplus/gyp,bpsinc-native/src_tools_gyp,turbulenz/gyp,azunite/gyp_20150930,dougbeal/gyp,azunite/gyp,luvit/gyp,xin3liang/platform_external_chromium_org_tools_gyp,omasanori/gyp,clar/gyp,sport-monkey/GYP,bnq4ever/gypgoogle,amoikevin/gyp,ttyangf/gyp,bnoordhuis/gyp,pandaxcl/gyp,LazyCodingCat/gyp,LazyCodingCat/gyp,pyokagan/gyp,pyokagan/gyp,svn2github/gyp,pandaxcl/gyp,svn2github/kgyp,duanhjlt/gyp,sdklite/gyp,sport-monkey/GYP,bulldy80/gyp_unofficial,cchamberlain/gyp,bulldy80/gyp_unofficial,adblockplus/gyp,omasanori/gyp,AWhetter/gyp,sanyaade-teachings/gyp,turbulenz/gyp,MIPS/external-chromium_org-tools-gyp,sfiera/gyp,cysp/gyp,sloanyang/gyp,yjhjstz/gyp,Danath/gyp,azunite/gyp,sanyaade-teachings/gyp,bnoordhuis/gyp,Danath/gyp,Phuehvk/gyp,turbulenz/gyp,IllusionRom-deprecated/android_platform_external_chromium_org_tools_gyp,bpsinc-native/src_tools_gyp,lukeweber/gyp-override,pandaxcl/gyp,pyokagan/gyp,clar/gyp,openpeer/webrtc-gyp,Chilledheart/gyp,pandaxcl/gyp,xin3liang/platform_external_chromium_org_tools_gyp,luvit/gyp,mkrautz/gyp-libmumble,springmeyer/gyp,bnoordhuis/gyp,lianliuwei/gyp,bnoordhuis/gyp,trafi/gyp,okumura/gyp,sdklite/gyp,yinquan529/platform-external-chromium_org-tools-gyp,springmeyer/gyp,adblockplus/gyp,sloanyang/gyp,svn2github/gyp,brson/gyp,Chilledheart/gyp,azunite/gyp,ttyangf/pdfium_gyp,carlTLR/gyp,android-ia/platform_external_chromium_org_tools_gyp,Omegaphora/external_chromium_org_tools_gyp,geekboxzone/lollipop_external_chromium_org_tools_gyp,azunite/gyp,tarc/gyp,enkripsi/gyp,mistydemeo/gyp,MIPS/external-chromium_org-tools-gyp,alexcrichton/gyp,AWhetter/gyp,svn2github/gyp,cysp/gyp,ryfx/gyp,mapbox/gyp,bnq4ever/gypgoogle,okumura/gyp,Phuehvk/gyp,yinquan529/platform-external-chromium_org-tools-gyp,bnq4ever/gypgoogle,amoikevin/gyp,bpsinc-native/src_tools_gyp,adblockplus/gyp,turbulenz/gyp,geekboxzone/lollipop_external_chromium_org_tools_gyp,AWhetter/gyp,kevinchen3315/gyp-git,amoikevin/gyp,MIPS/external-chromium_org-tools-gyp,chromium/gyp,Danath/gyp,mapbox/gyp,bnq4ever/gypgoogle,duanhjlt/gyp,dougbeal/gyp,ttyangf/gyp,lianliuwei/gyp,ttyangf/pdfium_gyp,kevinchen3315/gyp-git,azunite/gyp_20150930,okwasi/gyp,AOSPU/external_chromium_org_tools_gyp,duanhjlt/gyp,ttyangf/gyp,pyokagan/gyp,yinquan529/platform-external-chromium_org-tools-gyp,bnq4ever/gypgoogle,dougbeal/gyp,Phuehvk/gyp,adblockplus/gyp,amoikevin/gyp,cchamberlain/gyp,mgamer/gyp,okwasi/gyp,lukeweber/gyp-override,Omegaphora/external_chromium_org_tools_gyp,kevinchen3315/gyp-git,yangrongwei/gyp,mumble-voip/libmumble-gyp,mumble-voip/libmumble-gyp,mapbox/gyp,sanyaade-teachings/gyp,cchamberlain/gyp,MIPS/external-chromium_org-tools-gyp,openpeer/webrtc-gyp,openpeer/webrtc-gyp,dougbeal/gyp,Chilledheart/gyp,sanyaade-teachings/gyp,azunite/gyp_20150930,sdklite/gyp,springmeyer/gyp,bnoordhuis/gyp,bdarnell/gyp,LazyCodingCat/gyp,android-ia/platform_external_chromium_org_tools_gyp,Danath/gyp,channing/gyp,mkrautz/gyp-libmumble,saghul/gyn,lianliuwei/gyp,AWhetter/gyp,svn2github/gyp,openpeer/webrtc-gyp,erikge/watch_gyp,sfiera/gyp,bpsinc-native/src_tools_gyp,Jack-Q/GYP-copy,ttyangf/gyp,carlTLR/gyp,msc-/gyp,sport-monkey/GYP,mkrautz/gyp-libmumble,cchamberlain/gyp,azunite/gyp_20150930,mgamer/gyp,sport-monkey/GYP,saghul/gyn,Jack-Q/GYP-copy