Compilation error in Ubuntu 20.04 under WSL 1

[slockwood]

Anyone else getting this?

slockwood@STACY-LOCKWOOD-01:~/workspace/angband-4.2.1$ make all
Entering directory src.
cat: ../version: No such file or directory
cat: ../version: No such file or directory
cat: ../version: No such file or directory
cat: ../version: No such file or directory
Successfully generated dependencies.
cat: ../version: No such file or directory
main.c:56:1: warning: ISO C forbids empty initializer braces [-Wpedantic]
56 | {
| ^
main.c:55:28: error: zero or negative size array ‘modules’
55 | static const struct module modules[] =
| ^~~~~~~
Failed to compile main.c!
make[3]: *** [../mk/buildsys.mk:243: main.o] Error 1
make[2]: *** [../mk/buildsys.mk:112: all] Error 2
make[1]: *** [mk/buildsys.mk:115: subdirs] Error 2
make: *** [mk/buildsys.mk:110: all] Error 2

$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/9/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none:hsa
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 9.3.0-17ubuntu1~20.04' --with-bugurl=file:///usr/share/doc/gcc-9/README.Bugs --enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++,gm2 --prefix=/usr --with-gcc-major-version-only --program-suffix=-9 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-plugin --enable-default-pie --with-system-zlib --with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none=/build/gcc-9-HskZEa/gcc-9-9.3.0/debian/tmp-nvptx/usr,hsa --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)

Steps to reproduce (or not):
./autogen.sh
./configure --with-no-install
make all

[backwardsEric]

What did the end of the output from configuring Angband look like? Here's what it looks like with the current development version of Angband on a Debian system:

Configuration:

  Install path:                           (not used)
  binary path:                            ..
  config path:                            /var/tmp/angband/lib/
  lib path:                               /var/tmp/angband/lib/
  doc path:                               /var/tmp/angband/doc/
  var path:                               /var/tmp/angband/lib/

-- Frontends --
- Curses                                  Yes
- X11                                     Yes
- SDL2                                    Disabled
- SDL                                     Disabled
- Windows                                 Disabled
- Test                                    No
- Stats                                   No
- Spoilers                                Yes

- SDL2 sound                              Disabled
- SDL sound                               Disabled

The key parts are the lines after "-- Frontends --". If all those are "No" or "Disabled", you'll get the compiler error you saw. Because the Debian system used above had the libx11-dev and libncurses-dev packages installed, those front-ends were automatically enabled. To enable the SDL or SDL2 front ends, you would need to have the prerequisites installed (libsdl1.2-dev, libsdl-image1.2-dev, and libsdl-ttf2.0-dev packages for SDL; libsdl2-dev, libsdl2-image-dev, and libsdl2-ttf-dev packages for SDL2) and include either the --enable-sdl or --enable-sdl2 in the options when running the configure script for Angband.