search

dgpdec / course

Source code for the applications presented in the course "Geometry Processing with Discrete Exterior Calculus"
533 stars 92 forks source link

Issues solved when compiling on Linux Ubuntu 12.04 LTS 64-bit #1

Open nicgallego opened 10 years ago

nicgallego commented 10 years ago

Hi everyone, I hope it helps. Linux Ubuntu 12.04 LTS 64-bit, gcc / g++ version 4.6.3

Q: After installing opengl (hardware drivers if needed and glut library) <GLUT/glut.h> does not exist

A: freeglut3 package headers are installed in /usr/include/GL rather than /usr/include/GLUT. To correct this create a symbolic link GLUT pointing to GL with the command on the terminal $ sudo ln -s /usr/include/GL /usr/include/GLUT

Q: Compilation error 'glDeleteProgram' was not declared in this scope

A: This is because gl extensions are wrapped by a flag called GL_GLEXT_PROTOTYPES on opengl headers, so to compile with extensions, add to your compilation flags on the project Makefile -DGL_GLEXT_PROTOTYPES (see Makefile example below)

Q: Linking error libgspr.a undefined reference to 'SuiteSparse_time' A: Add -lsuitesparseconfig to DDG_SUITESPARSE_LIBS (See Makefile example below)

Q: Linking error libsuitsparseconfig undefied reference to 'clock_gettime' A: Add -lrt to DDG_SUITESPARSE_LIBS

Notes: If you are in an 64 bit system, remember to configure (uncommenting) the blas related line to 64 bits. You may also need to add

include to modules Complex.cpp, DenseMatrix.cpp, since appearently it is missing. Probably a solution is possible with compiler flags without modifying the code also,

For further reference, here the lines modefied on the project makefile, ie. course/BaseCode/Makefile ...

Linux

DDG_INCLUDE_PATH = -I/usr/include -I/usr/local/include DDG_LIBRARY_PATH = -L/usr/lib -L/usr/local/lib DDG_BLAS_LIBS = -llapack -lblas -lgfortran DDG_SUITESPARSE_LIBS = -lspqr -lumfpack -lcholmod -lmetis -lcolamd -lccolamd -lcamd -lamd -lm -lsuitesparseconfig -lrt DDG_OPENGL_LIBS = -lglut -lGL -lGLU -lX11 ... CFLAGS = -O3 -Wall -Werror -ansi -pedantic $(DDG_INCLUDE_PATH) -I./include -I./src -DGL_GLEXT_PROTOTYPES ...

ghost commented 7 years ago

thanks! I don't know if I could have gotten it built without the DGL_GLEXT_PROTOTYPES suggestion!

ghost commented 7 years ago

p.s. In addition to the suggestions needed here, I had to make the changes suggested in https://github.com/dgpdec/course/issues/2