About the pit of the VS compilation connection. (/ MT) (/ MTD) (/ MD) (/ MDD)
tags: Microsoft Library visual studio
OldNames.Lib (read.obi): Error LNK2001: External symbol __imp__read
Microsoft gives the program that the runtime used by the default is (/ MD) (/ MDD) is a dynamic runtime. Sometimes it contains a third-party library, a link is a bunch of error, then run the library to change (/ MT) (/ MTD) will be able to link. But if you accidentally include other libraries, other libraries are generated using (/ MD) (/ MDD), and the result may be reported to this type of fault. Very wonderful, this library should exist, and he said that the link can't.
The purpose of writing this article is to remind yourself that Microsoft's runtime is a pit, and another possibility that can be linked may be that the run library used in the library generated by you may not match.
Attach the CMAKE configuration item I often use:
set(CompilerFlags
CMAKE_CXX_FLAGS
CMAKE_CXX_FLAGS_DEBUG
CMAKE_CXX_FLAGS_RELEASE
CMAKE_C_FLAGS
CMAKE_C_FLAGS_DEBUG
CMAKE_C_FLAGS_RELEASE)
foreach(CompilerFlag ${CompilerFlags})
string(REPLACE "/MD" "/MT" ${CompilerFlag} "${${CompilerFlag}}")
string(REPLACE "/Ob0" "" ${CompilerFlag} "${${CompilerFlag}}")
string(REPLACE "/TC" "" ${CompilerFlag} "${${CompilerFlag}}")
endforeach()
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