Rename getline() to procmail_getline() to avoid namespace clash with
POSIX getline(). Fixes FTBFS.

Copied from Debian:
http://sources.debian.net/src/procmail/3.22-24/debian/patches/24/

References:
http://bugs.debian.org/549426

--- a/src/fields.c
+++ b/src/fields.c
@@ -110,16 +110,16 @@
 		    /* try and append one valid field to rdheader from stdin */
 int readhead P((void))
 { int idlen;
-  getline();
+  procmail_getline();
   if((idlen=breakfield(buf,buffilled))<=0) /* not the start of a valid field */
      return 0;
   if(idlen==STRLEN(FROM)&&eqFrom_(buf))			/* it's a From_ line */
    { if(rdheader)
 	return 0;			       /* the From_ line was a fake! */
-     for(;buflast=='>';getline());	    /* gather continued >From_ lines */
+     for(;buflast=='>';procmail_getline());	    /* gather continued >From_ lines */
    }
   else
-     for(;;getline())		      /* get the rest of the continued field */
+     for(;;procmail_getline())		      /* get the rest of the continued field */
       { switch(buflast)			     /* will this line be continued? */
 	 { case ' ':case '\t':				  /* yep, it sure is */
 	      continue;
--- a/src/formail.c
+++ b/src/formail.c
@@ -819,7 +819,7 @@
       { if(split)		       /* gobble up the next start separator */
 	 { buffilled=0;
 #ifdef sMAILBOX_SEPARATOR
-	   getline();buffilled=0;		 /* but only if it's defined */
+	   procmail_getline();buffilled=0;		 /* but only if it's defined */
 #endif
 	   if(buflast!=EOF)					   /* if any */
 	      goto splitit;
--- a/src/formisc.c
+++ b/src/formisc.c
@@ -115,7 +115,7 @@
   buf[buffilled++]=c;
 }
 
-int getline P((void))			   /* read a newline-terminated line */
+int procmail_getline P((void))			   /* read a newline-terminated line */
 { if(buflast==EOF)			 /* at the end of our Latin already? */
    { loadchar('\n');					  /* fake empty line */
      return EOF;					  /* spread the word */
--- a/src/formisc.h
+++ b/src/formisc.h
@@ -17,4 +17,4 @@
 char*
  skipwords P((char*start));
 int
- getline P((void));
+ procmail_getline P((void));
a6230df3fbbeeddb7a0e6976e0b8581bd0ab6e'>root</a>/<a href='/guix/log/gnu?id=b8a6230df3fbbeeddb7a0e6976e0b8581bd0ab6e'>gnu</a>/<a href='/guix/log/gnu/packages?id=b8a6230df3fbbeeddb7a0e6976e0b8581bd0ab6e'>packages</a>/<a href='/guix/log/gnu/packages/netpbm.scm?id=b8a6230df3fbbeeddb7a0e6976e0b8581bd0ab6e'>netpbm.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/packages/netpbm.scm?id=b8a6230df3fbbeeddb7a0e6976e0b8581bd0ab6e&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2018-03-16 09:08:31 -0400'>2018-03-16</span></td><td><a href='/guix/commit/gnu/packages/netpbm.scm?id=6cbee49d6668eb7fd738080666f66febfce8c7e8'>gnu: All snippets report errors using exceptions, else return #t.</a><span class='msg-avail'>...</span></td><td>Mark H Weaver</td></tr>
<tr><td><span title='2017-07-06 02:20:33 +0200'>2017-07-06</span></td><td><a href='/guix/commit/gnu/packages/netpbm.scm?id=5bc42e1a468ce84d8adfa4be01a299c1a430c9cc'>gnu: netpbm: Remove timestamps.</a><span class='msg-avail'>...</span></td><td>Danny Milosavljevic</td></tr>
<tr><td><span title='2017-05-15 17:13:33 -0400'>2017-05-15</span></td><td><a href='/guix/commit/gnu/packages/netpbm.scm?id=664ac384be1f813772735ed562fc7d4d705ad356'>gnu: netpbm: Update to 10.78.3.</a><span class='msg-avail'>...</span></td><td>Leo Famulari</td></tr>
<tr><td><span title='2016-06-17 15:41:48 +0200'>2016-06-17</span></td><td><a href='/guix/commit/gnu/packages/netpbm.scm?id=56501d3b1727cbafed25be4268c4e6c9387088d9'>gnu: netpbm: Remove timestamps from build products.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2016-06-17 15:21:11 +0200'>2016-06-17</span></td><td><a href='/guix/commit/gnu/packages/netpbm.scm?id=61dc82d9b90d0545739c30bfc33003bd062071f0'>gnu: netpbm: Look for 'gsc' instead of 'gs'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2016-05-16 14:26:27 +0200'>2016-05-16</span></td><td><a href='/guix/commit/gnu/packages/netpbm.scm?id=9f9861d7e5af9dd79796fce2c7bf9e44d02f2e32'>gnu: netpbm: Return #t from custom phases.</a><span class='msg-avail'>...</span></td><td>Federico Beffa</td></tr>
<tr><td><span title='2016-05-16 14:23:46 +0200'>2016-05-16</span></td><td><a href='/guix/commit/gnu/packages/netpbm.scm?id=2492581f0c7a77db5e7da231a62aa09cfaed0987'>gnu: netpbm: Fix location of X color name database.</a><span class='msg-avail'>...</span></td><td>Federico Beffa</td></tr>
<tr><td><span title='2016-05-16 14:23:30 +0200'>2016-05-16</span></td><td><a href='/guix/commit/gnu/packages/netpbm.scm?id=1de1c56db72a48c38ad12990e32319eb51b29795'>gnu: netpbm: Use 'modify-phases' syntax.</a><span class='msg-avail'>...</span></td><td>Federico Beffa</td></tr>