Bug#960253: abgate FTBFS with lv2-dev 1.18.0-1

[Adrian Bunk <bunk@debian.org>]

Source: abgate
Version: 1.1.9-2
Severity: serious
Tags: ftbfs

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/abgate.html

...
gate.cpp:47:41: error: '_LV2_Descriptor' does not name a type; did you mean 'LV2_Descriptor'?
   47 | static LV2_Handle instantiateGate(const _LV2_Descriptor *descriptor, double s_rate, const char *path, const LV2_Feature * const * features) {
      |                                         ^~~~~~~~~~~~~~~
      |                                         LV2_Descriptor
gate.cpp: In function 'void init()':
gate.cpp:197:32: error: invalid conversion from 'void* (*)(const int*, double, const char*, const LV2_Feature* const*)' to 'void* (*)(const LV2_Descriptor*, double, const char*, const LV2_Feature* const*)' [-fpermissive]
  197 |  gateDescriptor->instantiate = instantiateGate;
      |                                ^~~~~~~~~~~~~~~
      |                                |
      |                                void* (*)(const int*, double, const char*, const LV2_Feature* const*)
make[2]: *** [Makefile:17: gate.so] Error 1