Bug#1006682: /usr/lib/cmake/mathgl2/MathGL2Config.cmake: Could NOT find OpenMP_CXX

[Sylvain Joubert]

Package: libmgl-dev
Version: 8.0.1-1
Severity: normal
X-Debbugs-Cc: joubert.sy at gmail.com

Dear Maintainer,

Trying to use libmgl-dev through find_package(MathGL2) in CMake I'm facing the
following error:

CMake Error at
/usr/share/cmake-3.22/Modules/FindPackageHandleStandardArgs.cmake:230
(message):
  Could NOT find OpenMP_CXX (missing: OpenMP_CXX_FLAGS OpenMP_CXX_LIB_NAMES)
Call Stack (most recent call first):
  /usr/share/cmake-3.22/Modules/FindPackageHandleStandardArgs.cmake:594
(_FPHSA_FAILURE_MESSAGE)
  /usr/share/cmake-3.22/Modules/FindOpenMP.cmake:544
(find_package_handle_standard_args)
  /usr/share/cmake-3.22/Modules/CMakeFindDependencyMacro.cmake:47
(find_package)
  /usr/lib/cmake/mathgl2/MathGL2Config.cmake:22 (find_dependency)
  [...]

It appears the libmgl-dev package is missing a dependency on an OpenMP related
package.
Installing libomp-dev fixes the issue though I'm not sure this is the correct
package to depend on.

Thanks,
Sylvain


-- System Information:
Debian Release: bookworm/sid
  APT prefers testing
  APT policy: (990, 'testing'), (800, 'stable-updates'), (800, 'stable'), (700, 'unstable'), (90, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 5.16.0-1-amd64 (SMP w/8 CPU threads; PREEMPT)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), LANGUAGE=fr
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages libmgl-dev depends on:
ii  libgl-dev     1.4.0-1
ii  libgsl-dev    2.7.1+dfsg-3
ii  libmgl-fltk8  8.0.1-1
ii  libmgl-glut8  8.0.1-1
ii  libmgl-mpi8   8.0.1-1
ii  libmgl-qt5-8  8.0.1-1
ii  libmgl-wnd8   8.0.1-1
ii  libmgl-wx8    8.0.1-1
ii  libmgl8       8.0.1-1
ii  libpng-dev    1.6.37-3

libmgl-dev recommends no packages.

libmgl-dev suggests no packages.

-- no debconf information