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Bug#980369: glslang: autopkgtest regression: undefined reference to `ShConstructUniformMap'



On 18.1.2021 12.44, Simon McVittie wrote:
Source: glslang
Version: 11.1.0-1
Severity: serious
Justification: release team policy
X-Debbugs-Cc: debian-ci@lists.debian.org
User: debian-ci@lists.debian.org
Usertags: regression
Tags: patch

Thanks for adding an autopkgtest (#940488) and pkg-config metadata
(#940487). However, since version 11.1.0-1, glslang fails the autopkgtest,
for example in
https://ci.debian.net/data/autopkgtest/testing/amd64/g/glslang/9766376/log.gz:

autopkgtest [13:18:41]: test glslang-dev: [-----------------------
+ mktemp -d
+ tempdir=/tmp/tmp.UEoTRS3LSr
+ cd /tmp/tmp.UEoTRS3LSr
+ cat
+ c++ -std=c++11 -o trivial trivial.cpp -lglslang -lHLSL -lOGLCompiler -lOSDependent -lSPIRV -lpthread
/usr/bin/ld: /tmp/ccZLSVyX.o: in function `main':
trivial.cpp:(.text+0x9): undefined reference to `ShConstructUniformMap'
/usr/bin/ld: trivial.cpp:(.text+0x19): undefined reference to `ShDestruct'
collect2: error: ld returned 1 exit status
autopkgtest [13:18:42]: test glslang-dev: -----------------------]

This indicates that the compile-time interface has changed: it is now
necessary for client code to link to -lMachineIndependent and
-lGenericCodeGen in addition to the libraries that were previously
required. This will presumably mean that some packages dependent on
glslang will now FTBFS.

Linking with the new glslang.pc seems to have the same bug: glslang.pc
needs updating for the new compile-time interface.

I attach an attempt to fix this, together with improvements to the
autopkgtest.

(I should warn you that I don't really know how this library works,
so I'm guessing at what the intended compile-time interface is; please
review accordingly.)

     smcv


Thanks, they look fine to me and will be in -2 which will be uploaded soon.


--
t


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