X11 Windowing Fails to Compile and or Link

[mfisher31]

Getting undefined reference when building an exported Makefile. Getting compiler errors when using waf. Latest JUCE master does not have these issues.

From Projucer makefile project

build/intermediate/Release/include_juce_gui_basics_e3f79785.o: In function `juce::getPeerFor(unsigned long, bool)':
include_juce_gui_basics.cpp:(.text+0x4a191): undefined reference to `XGetWMHints'
include_juce_gui_basics.cpp:(.text+0x4a1af): undefined reference to `XFree'
collect2: error: ld returned 1 exit status
Makefile:138: recipe for target 'build/Projucer' failed
make: *** [build/Projucer] Error 1

From Element

In file included from ../libs/compat/include_juce_gui_basics.cpp:9:
In file included from ../libs/JUCE/modules/juce_gui_basics/juce_gui_basics.cpp:262:
../libs/JUCE/modules/juce_gui_basics/native/x11/juce_linux_XWindowSystem.cpp:631:125: error: type 'std::unique_ptr<XVisualInfo, juce::(anonymous namespace)::XFreeDeleter>' does not provide a subscript operator
                                auto pictVisualFormat = X11Symbols::getInstance()->xRenderFindVisualFormat (display, xvinfos[i].visual);
                                                                                                                     ~~~~~~~^~
../libs/JUCE/modules/juce_gui_basics/native/x11/juce_linux_XWindowSystem.cpp:637:53: error: type 'std::unique_ptr<XVisualInfo, juce::(anonymous namespace)::XFreeDeleter>' does not provide a subscript operator
                                    visual = xvinfos[i].visual;
                                             ~~~~~~~^~
2 errors generated.

Please include:

1. detailed steps on how to reproduce the bug, preferably with already
   existing JUCE code such as the demo plugin or the demo code
   Compile Element

2. the expected behaviour
   No compiler or linker errors

3. the operating system
   Ubuntu 18.0.04

4. the architecture (32-bit or 64-bit)
   64bit

5. a stack trace - if the bug causes a crash
   none

6. the plugin format (VST2, VST3, AU, AAX, RTAS) - if applicable
   n/a

7. which DAW you observed the bug in - if applicable
   n/a

Make sure you have pulled the latest commits from the develop branch of the
JUCE repo and have re-compiled the Projucer before you submit your bug. Often
we have already fixed the issue but it hasn't yet been released on the master
branch. If it's a major bug, which must be hot-fixed immediately, then we will
also accept bug reports for tagged release versions.

[falkTX]

Can you try with c38ea34 ?
(slightly older commit before changes for vital synth and merging develop juce stuff)

[mfisher31]

Sorry it took so long. Projucer compiles fine, still getting the error building Element.

[falkTX]

I fixed this up on latest git again. No longer have hacky workarounds, the x11 code is all from juce.

I have not modified x11 part of the code that much, and obviously the juce stuff still builds as I just made a release with it.

[mfisher31]

Excellent! Thanks.