ADA not able to link glut32.dll in GPS IDE

问题

I'm writing simple OpenGl program using ADA in GPS IDE.

I have all supporting file (like glut.ads/adb, Gl.ads/adb)

I have created Pragma like "pragma Linker_Options("../Lib/glut32.dll");"

But I get errors like

Link
   [link]         main.adb
collect2.exe: error: ld returned 5 exit status
gprbuild: link of main.adb failed
gprbuild: failed command was: c:\gnat\2019\bin\gcc.exe main.o b__main.o D:\Saravanan\Project\Training\Open_GL Project\obj\GL-Extended.o D:\Saravanan\Project\Training\Open_GL Project\obj\GL.o D:\Saravanan\Project\Training\Open_GL Project\obj\glut.o -LD:\Saravanan\Project\Training\Open_GL Project\obj\ -LD:\Saravanan\Project\Training\Open_GL Project\obj\ -LC:/gnat/2019/lib/gcc/x86_64-pc-mingw32/8.3.1/adalib/ -static-libgcc ../Lib/glut32.dll C:/gnat/2019/lib/gcc/x86_64-pc-mingw32/8.3.1/adalib/libgnat
.a -Wl,--stack=0x2000000 -o main.exe
[2019-12-23 15:28:13] process exited with status 4, elapsed time: 01.83s

So kindly help me to resolve this issue

回答1:

You might want to try

pragma Linker_Options("-L../Lib");
pragma Linker_Options("-lglut32");

回答2:

If you're using FreeGLUT, you need to link against additional system libraries:

pragma Linker_Options ("-lglu32", "-lopengl32", "-lgdi32",
                       "-lwinmm", "-luser32");

These are from the FreeGLUT C header.

Then you either do what @DeeDee suggested, or you place your DLL file into c:\gnat\2019\lib and just do

pragma Linker_Options ("-lglut32");

You might want to have a look at my OpenGLAda binding which handles this stuff with GPR files but uses GLFW instead of GLUT.

来源：https://stackoverflow.com/questions/59453491/ada-not-able-to-link-glut32-dll-in-gps-ide

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