Add library header

.SRCINFO

@@ -1,12 +1,13 @@
 pkgbase = evdi-dkms
 	pkgdesc = Kernel module to enable management of multiple screens
 	pkgver = 1.14.11
-	pkgrel = 1
+	pkgrel = 2
 	url = https://github.com/DisplayLink/evdi
 	arch = i686
 	arch = x86_64
 	arch = aarch64
 	license = GPL-2.0-only
+	license = LGPL-2.1-only
 	makedepends = libdrm
 	depends = dkms
 	provides = evdi=1.14.11

PKGBUILD

@@ -3,10 +3,13 @@
 _pkgname="evdi"
 pkgname="$_pkgname-dkms"
 pkgver=1.14.11
-pkgrel=1
+pkgrel=2
 pkgdesc="Kernel module to enable management of multiple screens"
 url="https://github.com/DisplayLink/evdi"
-license=('GPL-2.0-only')
+license=(
+  'GPL-2.0-only'  # module
+  'LGPL-2.1-only' # library
+)
 arch=('i686' 'x86_64' 'aarch64')
 
 depends=(
@@ -35,9 +38,12 @@ build() {
 
 package() {
   cd "$_pkgsrc"
-  make -C 'library' install DESTDIR="$pkgdir" PREFIX='/usr'
 
-  # module for dkms
+  # library
+  make -C 'library' install DESTDIR="$pkgdir" PREFIX='/usr'
+  install -Dm644 'library/evdi_lib.h' -t "$pkgdir/usr/include/"
+
+  # dkms module
   mkdir -pm755 "$pkgdir/usr/src/$_pkgname-$pkgver"
   cp -a module/* "$pkgdir/usr/src/$_pkgname-$pkgver/"
 }