diff --git a/extra/chmlib/.SRCINFO b/extra/chmlib/.SRCINFO
new file mode 100644
index 000000000..44db0679a
--- /dev/null
+++ b/extra/chmlib/.SRCINFO
@@ -0,0 +1,12 @@
+pkgbase = chmlib
+	pkgdesc = Library for dealing with Microsoft ITSS/CHM format files
+	pkgver = 0.40
+	pkgrel = 8
+	url = http://www.jedrea.com/chmlib/
+	arch = x86_64
+	license = LGPL
+	depends = glibc
+	source = http://www.jedrea.com/chmlib/chmlib-0.40.tar.bz2
+	sha256sums = 3449d64b0cf71578b2c7e3ddc048d4af3661f44a83941ea074a7813f3a59ffa3
+
+pkgname = chmlib
diff --git a/extra/chmlib/PKGBUILD b/extra/chmlib/PKGBUILD
index 1659904e3..cecb9bd51 100644
--- a/extra/chmlib/PKGBUILD
+++ b/extra/chmlib/PKGBUILD
@@ -7,7 +7,7 @@
 
 pkgname=chmlib
 pkgver=0.40
-pkgrel=7
+pkgrel=8
 pkgdesc="Library for dealing with Microsoft ITSS/CHM format files"
 arch=('x86_64')
 url="http://www.jedrea.com/chmlib/"
@@ -19,6 +19,7 @@ sha256sums=('3449d64b0cf71578b2c7e3ddc048d4af3661f44a83941ea074a7813f3a59ffa3'
             'fa04b34a7807f3a1321909abb86e5475778b3e0a24e109804a402470413b38a8')
 
 build() {
+  CFLAGS+=" -Wno-implicit-function-declaration"
   cd "${srcdir}"/${pkgname}-${pkgver}
 
   patch -p1 -i ${srcdir}/arm.patch