6 files changed, 16 insertions, 0 deletions
diff --git a/source/html/css-apply.c b/source/html/css-apply.c
index e1ad46ff..65323baa 100644
--- a/source/html/css-apply.c
+++ b/source/html/css-apply.c
@@ -1,6 +1,10 @@
 #include "mupdf/fitz.h"
 #include "html-imp.h"
 
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+
 static const char *inherit_list[] = {
 	"color",
 	"direction",
diff --git a/source/html/css-parse.c b/source/html/css-parse.c
index d92e3d7b..8dbc4dae 100644
--- a/source/html/css-parse.c
+++ b/source/html/css-parse.c
@@ -1,6 +1,8 @@
 #include "mupdf/fitz.h"
 #include "html-imp.h"
 
+#include <string.h>
+
 struct lexbuf
 {
 	fz_context *ctx;
diff --git a/source/html/epub-doc.c b/source/html/epub-doc.c
index 495b397f..20b5c2ef 100644
--- a/source/html/epub-doc.c
+++ b/source/html/epub-doc.c
@@ -1,6 +1,9 @@
 #include "mupdf/fitz.h"
 #include "html-imp.h"
 
+#include <string.h>
+#include <math.h>
+
 enum { T, R, B, L };
 
 typedef struct epub_document_s epub_document;
diff --git a/source/html/html-doc.c b/source/html/html-doc.c
index 825e3958..67587fa1 100644
--- a/source/html/html-doc.c
+++ b/source/html/html-doc.c
@@ -1,6 +1,9 @@
 #include "mupdf/fitz.h"
 #include "html-imp.h"
 
+#include <string.h>
+#include <math.h>
+
 enum { T, R, B, L };
 
 typedef struct html_document_s html_document;
diff --git a/source/html/html-font.c b/source/html/html-font.c
index 640c8565..cf572440 100644
--- a/source/html/html-font.c
+++ b/source/html/html-font.c
@@ -1,6 +1,8 @@
 #include "mupdf/fitz.h"
 #include "html-imp.h"
 
+#include <string.h>
+
 static fz_font *
 fz_load_html_default_font(fz_context *ctx, fz_html_font_set *set, const char *family, int is_bold, int is_italic)
 {
diff --git a/source/html/html-layout.c b/source/html/html-layout.c
index 8caf7e34..b4ec17a0 100644
--- a/source/html/html-layout.c
+++ b/source/html/html-layout.c
@@ -6,6 +6,8 @@
 #include "hb-ft.h"
 #include <ft2build.h>
 
+#include <math.h>
+
 #undef DEBUG_HARFBUZZ
 
 enum { T, R, B, L };