Silence warnings:

static declaration of 'compl_special_cases' follows non-static declaration
static declaration of 'compl_merge' follows non-static declaration
static declaration of 'compl_lift' follows non-static declaration
static declaration of 'compl_lift_onset' follows non-static declaration
static declaration of 'compl_lift_onset_complex' follows non-static declaration
static declaration of 'compl_d1merge' follows non-static declaration
static declaration of 'compl_cube' follows non-static declaration
static declaration of 'simp_comp_special_cases' follows non-static declaration
static declaration of 'simplify_special_cases' follows non-static declaration
non-void function 'foreach_output_function' should return a value
non-void function 'output_symbolic_constraints' should return a value
non-void function 'symbolic_hack_labels' should return a value
non-void function 'map_dcset' should return a value
static declaration of 'minimize' follows non-static declaration
non-void function 'generate_all_pairs' should return a value
Get rid of ucbqsort.c
s/restrict/_restrict/
Silence warnings:

static declaration of 'select_column' follows non-static declaration
static declaration of 'select_essential' follows non-static declaration
static declaration of 'verify_cover' follows non-static declaration
static declaration of 'visit_row/col' follows non-static declaration
conflicting types for 'aux_etr_order'
Get rid of 'st' directory
Get rid of 'mm' directory
Get rid of 'uprintf' directory
Get rid of 'errtrap' directory
Add BOOM 20/50 PLA benchmarks
Add some known answers
Add test script
Add test target to Makefile
Cleanup espresso.h
Use system stdlib
Add return type to cvrin.PLA_labels
Add return type to cvrout.kiss_output
Add return type to cvrout.kiss_print_cube
Add return type to equiv.find_equiv_outputs
Add return type to hack.find_dc_inputs
Add return type to hack.find_inputs