app-forensics/chkrootkit: Fix missing includes for musl

Closes: https://bugs.gentoo.org/show_bug.cgi?id=715552
Package-Manager: Portage-3.0.28, Repoman-3.0.3
Signed-off-by: Jory Pratt <anarchy@gentoo.org>

app-forensics/chkrootkit/chkrootkit-0.55.ebuild

@@ -1,4 +1,4 @@
-# Copyright 1999-2021 Gentoo Authors
+# Copyright 1999-2022 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
@@ -21,6 +21,8 @@ RDEPEND="cron? ( virtual/cron )"
 
 PATCHES=(
 	"${WORKDIR}/${GENTOO_PATCH}"
+	"${FILESDIR}/${P}-fcntl_h.patch"
+	"${FILESDIR}/${P}-limits_h.patch"
 )
 
 src_prepare() {

app-forensics/chkrootkit/files/chkrootkit-0.55-fcntl_h.patch

@@ -0,0 +1,30 @@
+--- a/chklastlog.c
++++ b/chklastlog.c
+@@ -41,6 +41,7 @@ int main () { return 0; }
+ #include <stdlib.h>
+ #endif
+ #include <sys/stat.h>
++#include <fcntl.h>
+ #include <unistd.h>
+ #include <string.h>
+ #include <signal.h>
+--- a/chkproc.c
++++ b/chkproc.c
+@@ -62,6 +62,7 @@ int main (){ return 0; }
+ #include <string.h>
+ #include <errno.h>
+ #include <sys/types.h>
++#include <fcntl.h>
+ #include <dirent.h>
+ #include <ctype.h>
+ #include <stdlib.h>
+--- a/chkwtmp.c
++++ b/chkwtmp.c
+@@ -25,6 +25,7 @@ int main () { return 0; }
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <unistd.h>
++#include <fcntl.h>
+ #include <string.h>
+ #include <utmp.h>
+ #include <time.h>

app-forensics/chkrootkit/files/chkrootkit-0.55-limits_h.patch

@@ -0,0 +1,10 @@
+--- a/chkdirs.c
++++ b/chkdirs.c
+@@ -33,6 +33,7 @@
+ #include <sys/syslimits.h>
+ #endif
+ 
++#include <limits.h>
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <sys/types.h>