==> Starting build()...
creating cache ./config.cache
checking for flex... flex
checking for -lfl... no
checking for gcc... gcc
checking whether we are using GNU C... yes
checking for a BSD compatible install... /usr/bin/install -c
checking whether make sets ${MAKE}... yes
checking for bison... bison -y
checking for ranlib... ranlib
checking where to find the C preprocessor... checking for /usr/ucblib... no
checking how to run the C preprocessor... /lib/cpp
checking whether cross-compiling... no
checking for ANSI C header files... no
checking for unistd.h... no
checking for working const... yes
checking for inline... inline
checking for working alloca.h... yes
checking for alloca... yes
checking for -lucb... no
checking for regcomp... yes
checking for strcspn... yes
checking for strdup... yes
checking for regcomp... (cached) yes
updating cache ./config.cache
creating ./config.status
creating Makefile
creating doc/Makefile
creating src/Makefile
creating regex/Makefile
creating inst
creating src/config.h
sed -e "s/@PBDIR@/`echo /usr/bin |sed -e s/\\\\//\\\\\\\\\\\\\\//g `/g" <dada.in |sed -e "s/@DADAROOT@/`echo /usr/lib |sed -e s/\\\\//\\\\\\\\\\\\\\//g `\/dada/g" -e "s/@_CPP@/`echo  |sed -e s/\\\\//\\\\\\\\\\\\\\//g `/g" >dada
make -C src
make[1]: Entering directory '/tmp/yaourt-tmp-risu/aur-dadaengine/src/dada-1.03/src'
gcc -g   -D_FORTIFY_SOURCE=2  -c -o pb.o pb.c
bison -y -d -v parser.y
flex lexer.x
make[1]: *** No rule to make target 'y.tab.h', needed by 'lex.yy.o'.  Stop.
make[1]: *** Waiting for unfinished jobs....
parser.y:75.12-16: warning: symbol T_NUM redeclared [-Wother]
 %token <f> T_NUM
            ^^^^^
lexer.x:38: warning, rule cannot be matched
parser.y: warning: 3 shift/reduce conflicts [-Wconflicts-sr]
In file included from /usr/include/bits/libc-header-start.h:33:0,
                 from /usr/include/stdlib.h:25,
                 from pb.c:6:
/usr/include/features.h:373:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp]
 #  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
    ^~~~~~~
pb.c: In function 'use_rtn':
pb.c:27:5: warning: implicit declaration of function 'dump_rules' [-Wimplicit-function-declaration]
     dump_rules(rtn);
     ^~~~~~~~~~
pb.c:28:5: warning: implicit declaration of function 'dump_mappings' [-Wimplicit-function-declaration]
     dump_mappings(mappings);
     ^~~~~~~~~~~~~
pb.c:29:5: warning: implicit declaration of function 'dump_transformations' [-Wimplicit-function-declaration]
     dump_transformations(transformations);
     ^~~~~~~~~~~~~~~~~~~~
pb.c:43:4: warning: implicit declaration of function 'print_wrapped' [-Wimplicit-function-declaration]
    print_wrapped(outfile, resolve_rule(rtn, initial_rule), wrapwidth);
    ^~~~~~~~~~~~~
pb.c:43:27: warning: implicit declaration of function 'resolve_rule' [-Wimplicit-function-declaration]
    print_wrapped(outfile, resolve_rule(rtn, initial_rule), wrapwidth);
                           ^~~~~~~~~~~~
pb.c: At top level:
pb.c:57:1: warning: return type defaults to 'int' [-Wimplicit-int]
 main(int argc, char *argv[])
 ^~~~
pb.c: In function 'main':
pb.c:86:34: warning: implicit declaration of function 'time' [-Wimplicit-function-declaration]
   srandom(rseed?strtoseed(rseed):time(NULL));
                                  ^~~~
pb.c:87:3: warning: implicit declaration of function 'yyparse' [-Wimplicit-function-declaration]
   yyparse();
   ^~~~~~~
make[1]: Leaving directory '/tmp/yaourt-tmp-risu/aur-dadaengine/src/dada-1.03/src'
make: *** [Makefile:25: all] Error 2
==> ERROR: A failure occurred in build().
    Aborting...
==> ERROR: Makepkg was unable to build dadaengine