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grep 2.5a fails compilation on Solaris

From: Keith Thompson
Subject: grep 2.5a fails compilation on Solaris
Date: Wed, 4 Oct 2000 03:42:23 -0700 (PDT)

I just tried to build grep-2.5a on a Sparc workstation running Solaris 7
(config.guess says "sparc-sun-solaris2.7") using gcc 2.95.2.  I got a
compilation error in search.c:

search.c:436: parse error before `*'
search.c:436: warning: data definition has no type or storage class

The offending line is:

static pcre *cre[255];

Presumably the type pcre is defined in <pcre.h>, which I don't have.
The "#include <pcre.h>" directive, as well as most references to type
pcre, are protected by "#ifdef HAVE_LIBPCRE" directives or equivalent.
The declaration on line 436 isn't.

Here's a patch that fixes the problem:
*** search.c,01 Wed Mar 22 20:43:00 2000
--- search.c    Wed Oct  4 03:33:49 2000
*** 432,439 ****
--- 432,441 ----
  static int  sub[300]; /* Could be less for grep, since we'll not be
                         * using grouping quite often. We'll need at least
                         * a few to allow back-references like \1 */
  static int  n_pcre = 0;
  static pcre *cre[255];
+ #endif /* HAVE_LIBPCRE */
  static void
  Pcompile (char *pattern, size_t size)

Also, a couple of typos:

In search.c, "It can be fetch at" should be "It can be fetched at".

In the first paragraph of NEWS, "interpert" should be "interpret".

Keith Thompson (The_Other_Keith) address@hidden  <http://www.ghoti.net/~kst>
San Diego Supercomputer Center           <*>  <http://www.sdsc.edu/~kst>
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