diff --git a/.gitignore b/.gitignore
index 37dbe946..e57df44a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,15 +1,10 @@
 *~
-*.o
-
 *.diff
 *.orig
 *.patch
-*.plist
 *.rej
-
 core
 .gdb_history
 .gdbinit
-
 # Meson build
 /builddir
diff --git a/SNAPSHOT.h b/SNAPSHOT.h
deleted file mode 100644
index cf241d92..00000000
--- a/SNAPSHOT.h
+++ /dev/null
@@ -1 +0,0 @@
-#define SNAPSHOT "s20180629"
diff --git a/builddir/.placeholder b/builddir/.placeholder
deleted file mode 100644
index e69de29b..00000000
diff --git a/doc/.gitignore b/doc/.gitignore
deleted file mode 100644
index 085639f5..00000000
--- a/doc/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-*.html
-*.8
diff --git a/meson.build b/meson.build
index da83c0b4..f8f6e9b7 100644
--- a/meson.build
+++ b/meson.build
@@ -69,10 +69,11 @@ endif
 opt = get_option('USE_IDN')
 if opt == true
 	idn_dep = cc.find_library('idn2', required : false)
-    if idn_dep.found()
-        add_project_arguments('-DUSE_IDN', language : 'c')
-        conf.set('USE_IDN', 1, description : 'If set use Internationalized Domain Name library.')
-    endif
+	if idn_dep.found()
+		add_project_arguments('-DUSE_IDN', language : 'c')
+		conf.set('USE_IDN', 1,
+			description : 'If set use Internationalized Domain Name library.')
+	endif
 else
 	idn_dep = dependency('disabler-appears-to-disable-executable-build', required : false)
 endif
@@ -89,7 +90,8 @@ elif opt == 'openssl'
 	conf.set('USE_OPENSSL', 1, description : 'if set use openssl crypto library.')
 elif opt == 'none'
 	crypto_dep = dependency('disabler-appears-to-disable-executable-build', required : false)
-	conf.set('PING6_NONCE_MEMORY', 1, description : 'If set RFC6744 random does not use any CRYPTO lib.')
+	conf.set('PING6_NONCE_MEMORY', 1,
+		description : 'If set RFC6744 random does not use any CRYPTO lib.')
 endif
 
 systemd = dependency('systemd', required : false)
@@ -135,7 +137,6 @@ if build_ninfod == true
 		'netinet/in.h',
 		'netinet/ip6.h',
 		'openssl/md5.h',
-		'pthread.h',
 		'pwd.h',
 		'string.h',
 		'strings.h',
@@ -154,11 +155,8 @@ if build_ninfod == true
 	endforeach
 	threads = dependency('threads')
 	if threads.found()
-		# FIXME: these are redundant, one should be removed.
 		conf.set('ENABLE_THREADS', 1,
 			description : 'Defined if libpthread is found.')
-		conf.set('HAVE_LIBPTHREAD', 1,
-			description : 'Defined if libpthread is found.')
 	endif
 	opt = get_option('NINFOD_MESSAGES')
 	if opt == true
diff --git a/meson_options.txt b/meson_options.txt
index a14a4d7f..80fce5e8 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -4,7 +4,8 @@ option('USE_CAP', type : 'boolean', value : true,
 option('USE_IDN', type : 'boolean', value : true,
 	description : 'IDN support (with libidn2)')
 
-option('USE_CRYPTO', type : 'combo', choices : [ 'none', 'gcrypt', 'nettle', 'openssl' ], value : 'openssl',
+option('USE_CRYPTO', type : 'combo',
+	choices : [ 'none', 'gcrypt', 'nettle', 'openssl' ], value : 'openssl',
 	description: 'Crypto library support for ping6')
 
 option('BUILD_ARPING', type : 'boolean', value : true,
diff --git a/ninfod/ninfod_core.c b/ninfod/ninfod_core.c
index c618dba3..717ef614 100644
--- a/ninfod/ninfod_core.c
+++ b/ninfod/ninfod_core.c
@@ -44,7 +44,7 @@
 #  include <stdlib.h>
 # endif
 #endif
-#if ENABLE_THREADS && HAVE_PTHREAD_H
+#if ENABLE_THREADS
 # include <pthread.h>
 #endif
 #if HAVE_STRING_H
@@ -110,7 +110,7 @@
 /* Variables */
 int initialized = 0;
 
-#if ENABLE_THREADS && HAVE_LIBPTHREAD
+#if ENABLE_THREADS
 pthread_attr_t pattr;
 #endif
 
@@ -397,7 +397,7 @@ void init_core(int forced)
 
 		srand(seed);
 
-#if ENABLE_THREADS && HAVE_LIBPTHREAD
+#if ENABLE_THREADS
 		if (initialized)
 			pthread_attr_destroy(&pattr);
 
@@ -425,7 +425,7 @@ void init_core(int forced)
 	return;
 }
 
-#if ENABLE_THREADS && HAVE_LIBPTHREAD
+#if ENABLE_THREADS
 static void *ni_send_thread(void *data)
 {
 #if ENABLE_DEBUG
@@ -511,7 +511,7 @@ int pr_nodeinfo(struct packetcontext *p)
 	int i;
 	char *cp;
 #endif
-#if ENABLE_THREADS && HAVE_PTHREAD_H
+#if ENABLE_THREADS
 	pthread_t thread;
 #endif
 	int rc;
@@ -669,7 +669,7 @@ int pr_nodeinfo(struct packetcontext *p)
 
 	/* Step 10: Send the reply
 	 * XXX: with possible random delay */
-#if ENABLE_THREADS && HAVE_LIBPTHREAD
+#if ENABLE_THREADS
 	/* ni_send_thread() frees p */
 	if (pthread_create(&thread, &pattr, ni_send_thread, p)) {
 		free(p->replydata);
diff --git a/ping.c b/ping.c
index 69f7b30f..78977ea7 100644
--- a/ping.c
+++ b/ping.c
@@ -214,7 +214,7 @@ static double ping_strtod(const char *str, const char *err_msg)
 	if (errno == ERANGE)
 		error(2, errno, "%s: %s", err_msg, str);
 	error(2, 0, "%s: %s", err_msg, str);
-	return num;
+	return 0.0;
 }
 
 int