<div dir="ltr"><div></div><div>QUESTION / PROBLEM -------------------------------------------------- Hello, I'm running into issues setting up a project to use GLFW as an unpackaged dependency. I'm a complete beginner at using build2. This is the first project I'm trying to setup. I have used C++ for a few years, but have never gotten very comfortable with all the C++ toolchains. Any form of help would be greatly appreciated. (Since the documentation became larger than anticipated I made a copy as a gist <a href="https://gist.github.com/CairX/3e9704c00d8709b8baea664ad53bf508">https://gist.github.com/CairX/3e9704c00d8709b8baea664ad53bf508</a>) INFORMATION -------------------------------------------------- The information I have used to try and get the project setup is based on the official documentation: <a href="https://www.build2.org/build2-toolchain/doc/build2-toolchain-intro.xhtml#guide-unpackaged-deps">https://www.build2.org/build2-toolchain/doc/build2-toolchain-intro.xhtml#guide-unpackaged-deps</a> And an earlier mailing list I found here: <a href="https://lists.build2.org/archives/users/2018-December/000547.html">https://lists.build2.org/archives/users/2018-December/000547.html</a> SETUP -------------------------------------------------- $ pwd /tmp/workspace $ mkdir unpkg-gcc $ git clone <a href="https://github.com/glfw/glfw.git">https://github.com/glfw/glfw.git</a> $ cd glfw $ git checkout 3.3.2 $ mkdir build $ cd build $ cmake -DCMAKE_INSTALL_PREFIX=/tmp/workspace/unpkg-gcc /tmp/workspace/glfw $ make install $ cd /tmp/workspace $ tree unpkg-gcc unpkg-gcc ├── include │ └── GLFW │ ├── glfw3.h │ └── glfw3native.h └── lib ├── cmake │ └── glfw3 │ ├── glfw3Config.cmake │ ├── glfw3ConfigVersion.cmake │ ├── glfw3Targets.cmake │ └── glfw3Targets-noconfig.cmake ├── libglfw3.a └── pkgconfig └── glfw3.pc 6 directories, 8 files $ bdep new -t exe -l c++ hello $ cd hello $ bdep init -C ../hello-gcc @gcc cc config.cxx=g++ config.cc.poptions=-I/tmp/workspace/unpkg-gcc/include config.cc.loptions=-L/tmp/workspace/unpkg-gcc/lib initializing in project /tmp/workspace/hello/ created configuration @gcc /tmp/workspace/hello-gcc/ 1 default,forwarded,auto-synchronized synchronizing: new hello/0.1.0-a.0.19700101000000 $ b mkdir ../hello-gcc/hello/fsdir{hello/} c++ hello/cxx{hello}@../hello-gcc/hello/hello/ ld ../hello-gcc/hello/hello/exe{hello} ln ../hello-gcc/hello/hello/exe{hello} -> hello/ $ hello/hello World Hello, World! ADJUSTMENT NR 1 -------------------------------------------------- In the documentation it mentions: "Once this is done, adjust your buildfile to import the library: import libs += libextra%lib{extra}" I took this to mean /tmp/workspace/hello/buildfile $ cat buildfile ./: {*/ -build/} doc{README.md} manifest import libs += GLFW%lib{glfw3} And adjusted main file to use GLFW. $ cat hello/hello.cxx #include <GLFW/glfw3.h> int main(int argc, char * argv[]) { glfwInit(); glfwInitHint(GLFW_CLIENT_API, GLFW_NO_API); GLFWwindow * window = glfwCreateWindow(800, 600, "Hello", NULL, NULL); while (!glfwWindowShouldClose(window)) { glfwPollEvents(); } glfwDestroyWindow(window); glfwTerminate(); return 0; } $ b c++ hello/cxx{hello}@../hello-gcc/hello/hello/ ld ../hello-gcc/hello/hello/exe{hello} /usr/bin/ld: ../hello-gcc/hello/hello/hello.o: in function `main': hello.cxx:(.text+0x10): undefined reference to `glfwInit' /usr/bin/ld: hello.cxx:(.text+0x1f): undefined reference to `glfwInitHint' /usr/bin/ld: hello.cxx:(.text+0x40): undefined reference to `glfwCreateWindow' /usr/bin/ld: hello.cxx:(.text+0x50): undefined reference to `glfwWindowShouldClose' /usr/bin/ld: hello.cxx:(.text+0x5e): undefined reference to `glfwPollEvents' /usr/bin/ld: hello.cxx:(.text+0x6c): undefined reference to `glfwDestroyWindow' /usr/bin/ld: hello.cxx:(.text+0x71): undefined reference to `glfwTerminate' collect2: error: ld returned 1 exit status info: failed to update ../hello-gcc/dir{hello/} ADJUSTMENT NR 2 -------------------------------------------------- The documentation mentions that the -L option alone should be enough if there the packages include a .pc file. Since this one does I thought it might reduce the number of moving parts to remove the -I option. So reset config.cc.poptions = [null] in /tmp/workspace/hello-gcc/build/config.build $ b error: header 'GLFW/glfw3.h' not found and cannot be generated info: re-run with --verbose=4 for more information info: while extracting header dependencies from hello/cxx{hello}@../hello-gcc/hello/hello/ info: while applying rule cxx.compile to update ../hello-gcc/hello/hello/obje{hello} info: while applying rule cxx.link to update ../hello-gcc/hello/hello/exe{hello} info: while applying rule alias to update ../hello-gcc/hello/dir{hello/} info: while applying rule alias to update ../hello-gcc/dir{hello/} info: failed to update ../hello-gcc/dir{hello/} Which made me think that the -I option was just giving me a false positive. After searching a looking around a lot I remembered seeing a commented out import line in /tmp/workspace/hello/hello/buildfile. Decided to try moving my import there instead. $ b error: package 'xproto', required by 'x11', not found info: while applying rule cxx.link to update ../hello-gcc/hello/hello/exe{hello} info: while applying rule alias to update ../hello-gcc/hello/dir{hello/} info: while applying rule alias to update ../hello-gcc/dir{hello/} error: package 'kbproto', required by 'x11', not found info: while applying rule cxx.link to update ../hello-gcc/hello/hello/exe{hello} info: while applying rule alias to update ../hello-gcc/hello/dir{hello/} info: while applying rule alias to update ../hello-gcc/dir{hello/} info: failed to update ../hello-gcc/dir{hello/} Which seems to have moved me in the right direction as it seems to be trying to incorporate GLFW into the build this time. ADJUSTMENT NR 3 -------------------------------------------------- I have been investigating a lot into why the packages might not be found. Checking that the correct packages are installed which should be x11proto-core-dev which is a dependency of xorg-dev. $ apt info xorg-dev Package: xorg-dev Version: 1:7.7+19 Priority: optional Section: x11 Source: xorg Maintainer: Debian X Strike Force <<a href="mailto:debian-x@lists.debian.org">debian-x@lists.debian.org</a>> Installed-Size: 47.1 kB Depends: libdmx-dev, libfontenc-dev, libfs-dev, libice-dev, libsm-dev, libx11-dev, libxau-dev, libxaw7-dev, libxcomposite-dev, libxcursor-dev, libxdamage-dev, libxdmcp-dev, libxext-dev, libxfixes-dev, libxfont-dev, libxft-dev, libxi-dev, libxinerama-dev, libxkbfile-dev, libxmu-dev, libxmuu-dev, libxpm-dev, libxrandr-dev, libxrender-dev, libxres-dev, libxss-dev, libxt-dev, libxtst-dev, libxv-dev, libxvmc-dev, libxxf86dga-dev, libxxf86vm-dev, x11proto-bigreqs-dev, x11proto-composite-dev, x11proto-core-dev, x11proto-damage-dev, x11proto-dmx-dev, x11proto-fixes-dev, x11proto-fonts-dev, x11proto-gl-dev, x11proto-input-dev, x11proto-kb-dev, x11proto-randr-dev, x11proto-record-dev, x11proto-render-dev, x11proto-resource-dev, x11proto-scrnsaver-dev, x11proto-video-dev, x11proto-xcmisc-dev, x11proto-xext-dev, x11proto-xf86bigfont-dev, x11proto-xf86dga-dev, x11proto-xf86dri-dev, x11proto-xf86vidmode-dev, x11proto-xinerama-dev, xserver-xorg-dev, xtrans-dev Homepage: <a href="http://www.x.org/">http://www.x.org/</a> Tag: devel::library, role::devel-lib, role::metapackage Download-Size: 38.2 kB APT-Manual-Installed: yes APT-Sources: <a href="http://deb.debian.org/debian">http://deb.debian.org/debian</a> buster/main amd64 Packages Description: X.Org X Window System development libraries This metapackage provides the development libraries for the X.Org X Window System. . X Window System design documentation, manual pages, library reference works, static versions of the shared libraries, and C header files are supplied by the packages depended on by this metapackage. . Note that this is a convenience package for users and is not a package for Debian developers to have their package depend on. That the .pc-files exists: $ ls -l /usr/share/pkgconfig/kbproto.pc -rw-r--r-- 1 root root 173 Apr 3 2018 /usr/share/pkgconfig/kbproto.pc $ ls -l /usr/share/pkgconfig/xproto.pc -rw-r--r-- 1 root root 203 Apr 3 2018 /usr/share/pkgconfig/xproto.pc That pkg-config looks in the correct location: $ pkg-config --variable pc_path pkg-config /usr/local/lib/x86_64-linux-gnu/pkgconfig:/usr/local/lib/pkgconfig:/usr/local/share/pkgconfig:/usr/lib/x86_64-linux-gnu/pkgconfig:/usr/lib/pkgconfig:/usr/share/pkgconfig And made sure that the path is in the environmental variable: $ echo $PKG_CONFIG_PATH /usr/share/pkgconfig This is where I'm at a loss. Best regards, Thomas Cairns </div></div>