Since latest commits mesa fails to build with:
./.libs/libnouveau.a(nv50_ir_lowering_gm107.o): In function
`nv50_ir::GM107LoweringPass::handleSUQ(nv50_ir::TexInstruction*)':
/<<PKGBUILDDIR>>/build/src/gallium/drivers/nouveau/../../../../../src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_gm107.cpp:326:
undefined reference to
`nv50_ir::NVC0LoweringPass::loadMsAdjInfo32(nv50_ir::TexInstruction::Target,
unsigned int, int, nv50_ir::Value*, bool)'
/<<PKGBUILDDIR>>/build/src/gallium/drivers/nouveau/../../../../../src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_gm107.cpp:322:
undefined reference to
`nv50_ir::NVC0LoweringPass::loadMsAdjInfo32(nv50_ir::TexInstruction::Target,
unsigned int, int, nv50_ir::Value*, bool)'
collect2: error: ld returned 1 exit status
Makefile:1178: recipe for target 'nouveau_compiler' failed

Full build log with configure options here:
https://launchpadlibrarian.net/389864818/buildlog_ubuntu-xenial-i386.mesa_18.3~git1809230730.b473fc~oibaf~x_BUILDING.txt.gz