https://bugs.gentoo.org/860879
https://bugs.gentoo.org/875011
--- a/configure.in
+++ b/configure.in
@@ -21,6 +21,9 @@ CPPFLAGS="${CPPFLAGS} -g"
 
 AM_MAINTAINER_MODE
 
+# For strcasestr
+AC_USE_SYSTEM_EXTENSIONS
+
 dnl fix freebsd's broken (?) libpthread
 AC_CHECK_LIB(c_r,pthread_creat,THREAD_LIBS="-lc_r", [
   AC_CHECK_LIB(pthread,pthread_create,THREAD_LIBS="-lpthread") ])
--- a/src/configfile.c
+++ b/src/configfile.c
@@ -48,6 +48,7 @@
 #include <sys/wait.h>
 
 #include "configfile.h"
+#include "db-memory.h"
 #include "err.h"
 
 #ifndef WITHOUT_MDNS
--- a/src/dynamic-art.c
+++ b/src/dynamic-art.c
@@ -32,6 +32,7 @@
 #include <sys/stat.h>
 
 #include "configfile.h"
+#include "dynamic-art.h"
 #include "err.h"
 #include "playlist.h"
 #include "restart.h"
--- a/src/mp3-scanner.h
+++ b/src/mp3-scanner.h
@@ -74,5 +74,6 @@ extern void make_composite_tags(MP3FILE *song);
 
 /* this should be refactored out of here... */
 extern off_t aac_drilltoatom(FILE *aac_fp, char *atom_path, unsigned int *atom_length);
+extern long scan_aac_findatom(FILE *fin, long max_offset, char *which_atom, int *atom_size);
 
 #endif /* _MP3_SCANNER_H_ */
--- a/src/parser.y
+++ b/src/parser.y
@@ -26,11 +26,14 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <time.h>
 #include "playlist.h"
 
+#define YYPARSE_PARAM param
 #define YYERROR_VERBOSE 1
 
 extern int yyerror(char *msg);
+extern int yylex(void);
 
 /* Forwards */
 
--- a/src/query.c
+++ b/src/query.c
@@ -2,6 +2,7 @@
 #include "config.h"
 #endif
 
+#include <ctype.h>
 #include <stdlib.h>
 #include <string.h>
 #include <stdio.h>
--- a/src/webserver.c
+++ b/src/webserver.c
@@ -41,6 +41,7 @@
 #include <sys/types.h>
 #include <sys/socket.h>
 
+#include "configfile.h"
 #include "err.h"
 #include "webserver.h"