I've found kind of a weird issue where if I indicate I want to link a library with the -l flag too early on the command line, I get linker errors. Here's an example: g++ -lml -lcvaux -lhighgui -lcv -lcxcore -std=c++0x -Werror -Wall -g -MMD -MP -Iinclude -o objrec main.cpp Here I'm linking a bunch of libraries, into a binary called objerec. The source file is at the end. This command line produces linker errors as if the libraries had not been linked properly. However in this example everything is fine: g++ -std=c++0x -Werror -Wall -g -MMD -MP -Iinclude -o objrec main.cpp -lml -lcvaux -lhighgui -lcv -lcxcore The only difference is that I place the -l flags after the source file (main.cpp) that I'm building. Why does the second example compile while the first gets linker errors? A more general question: in a make file is it better to list libraries you want to link in the LDFLAGS variable, or in the LDLIBS variable? Thanks, Brendan Miller
