10.5a1-build1 firefox-linux-i686 busted due to missing pulse

 0:24.70 checking for libpulse... no
 0:24.70 ERROR: Package libpulse was not found in the pkg-config search path.
 0:24.70 ERROR: Perhaps you should add the directory containing `libpulse.pc'
 0:24.70 ERROR: to the PKG_CONFIG_PATH environment variable
 0:24.70 ERROR: No package 'libpulse' found
 0:24.76 *** Fix above errors and then restart with\
 0:24.76                "./mach build"
 0:24.76 client.mk:111: recipe for target 'configure' failed
 0:24.76 make: *** [configure] Error 1

Edited Sep 19, 2020 by Matthew Finkel

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