Error compiling flex (the lexical analyzer)

2
votes

I'm trying to install flex (the lexical analyzer, not the Adobe program) on my Windows computer. I have MSYS installed. I untar flex, ./configure it, but when I try to make it, I get this error:

In file included from ccl.c:34:
flexdef.h:94:19: error: regex.h: No such file or directory
In file included from ccl.c:34:
flexdef.h:1195: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'regex_linedir'
flexdef.h:1197: error: expected ')' before '*' token
flexdef.h:1198: error: expected ')' before '*' token
flexdef.h:1199: error: expected ')' before '*' token
flexdef.h:1200: error: expected ')' before '*' token
flexdef.h:1201: error: expected ')' before '*' token
flexdef.h:1202: error: expected ')' before '*' token
make[2]: *** [ccl.o] Error 1
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2

Until recently, I've only ever installed things using an .exe, so I'm pretty confused by this. Installing bison and m4 both went smoothly, and I'm wondering why this isn't. Any ideas?

1
flex-lexerlexical-analysis
Are you referring to "Adobe Flex" or the "Fast Lexical Analyzer (flex)" projects? If it's the former, you've got the wrong code. If it's the later, you shouldn't use the 'flex' tag since most people will understand that to reference Adobe Flex. – Marplesoft
Flex as in the latter. I'll untag it as flex. – Maulrus

1 Answers

0
votes

You're missing the regex library, install it and try again.