Compiling squidGuard 1.4 on CentOS 5.1

SquidGuard is a URL redirector for the Squid HTTP Proxy server.  Its main purpose is to restrict access to unsavoury websites.

I found that when compiling squidGuard 1.4 on the CentOS 5.1 distribution of Linux, the ‘make’ phase failed with the following error:

/bin/sh: -c: line 1: syntax error near unexpected token `then'
/bin/sh: -c: line 1: `   @if [ ! -x bison -y ]; then \'
make[1]: *** [y.tab.c] Error 2
make[1]: Leaving directory `/home/antgreen/downloads/squidGuard-1.4/src'
make: *** [all] Error 1

My workaround was to edit the file: src/Makefile and replace the following:

y.tab.c y.tab.h: sg.y sg.h
        @if [ "$(YACC)" = "yacc" ]; then \
           @if [ ! -x $(YACC) ]; then \
              echo " " ; \
              echo "No yacc/bison found. Copy prepared files for y.tab.h and y.tab.c over. " ; \
              echo " " ; \
              cp y.tab.h.bison y.tab.h ; \
              cp y.tab.c.bison y.tab.c ; \
           else \
              $(YACC) -d sg.y  ; \
           fi ; \
        else \
           $(YACC) -d sg.y  ; \
        fi ;

with:

y.tab.c y.tab.h: sg.y sg.h
           $(YACC) -d sg.y  ; \

Re-run ‘make’ and cross your fingers!