linker - trying to build a PortMidi example in Mingw -

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im trying build portmidi example in mingw depends on 2 libraries portmidi , winmm, recompiled portmidi portimidi.a im getting errors of missing code.

is posible link winmm mingw, , have use ".a" or ".lib" libraries?

im using command compile source:

g++ -o prg latency.c -iheaders -llib -lportmidi -lwinmm

thanks help.

you don't need winmm.a build latency.c

you need
libpmjni.dll.a , libportmidi.dll.a or
libportmidi_s.a

to build portmidi wit cmake takes 5 minutes.

  • portmidi source : c:/src/portmidi217/
  • portmidi build : c:/mingw/portmidi

then can compile following command.

gcc.exe  -c -g -i/c/src/portmidi217/pm_common -i/c/src/portmidi217/porttime -mmd -mp -mf build/debug/latency.o.d -o build/debug/latency.o latency.c mkdir -p dist/debug gcc.exe  -o dist/debug/latency build/debug/latency.o -l/c/mingw/portmidi -lpmjni.dll -lportmidi.dll

building portmidi cmake

  • download or use cmake
  • in c:\cmake\bin folder double click cmake-gui.exe

unzip portmidi folder c:\mingw\src\portmidi217 can see in next image
(replace t:\ c:\ of course)

enter image description here

press configure

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settings described --> click next

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settings described --> click ok

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there errors click configure again

enter image description here

next looks better click configure again

enter image description here

settings described release or debug
maybe worked without c:\msys\1.0\bin\sh.exe
click configure again

enter image description here

looks --> click generate

enter image description here

cd builded c:\mingw\portmidi

enter image description here

open windows command type make

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it takes short time build

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there : .a , .dll

enter image description here

  • copy .a c:\mingw\lib
  • copy .dll c:\mingw\bin
  • copy c:\mingw\src\portmidi217\pm_common , c:\mingw\src\portmidi217\porttime
    .h folder latency.c is.

then can latency.c compile described above, need adjust paths.


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