Use system libzip

.SRCINFO

@@ -1,8 +1,8 @@
 # Generated by mksrcinfo v8
-# Fri May 19 23:31:04 UTC 2017
+# Sun Feb 11 21:34:44 UTC 2018
 pkgbase = ppsspp-git
 	pkgdesc = A PSP emulator written in C++
-	pkgver = 1.4.r255.66dc0ea62
+	pkgver = 1.5.4.r545.4ccf30d0a
 	pkgrel = 1
 	url = http://www.ppsspp.org/
 	arch = x86_64

PKGBUILD

@@ -7,7 +7,7 @@
 
 pkgbase=ppsspp-git
 pkgname=('ppsspp-git' 'ppsspp-headless-git' 'ppsspp-qt-git')
-pkgver=1.4.r255.66dc0ea62
+pkgver=1.5.4.r545.4ccf30d0a
 pkgrel=1
 pkgdesc='A PSP emulator written in C++'
 arch=('x86_64')
@@ -88,7 +88,8 @@ build() {
   cmake .. \
     -DCMAKE_BUILD_TYPE='Release' \
     -DCMAKE_SKIP_RPATH='ON' \
-    -DHEADLESS='ON'
+    -DHEADLESS='ON' \
+    -DUSE_SYSTEM_LIBZIP='ON'
   make
 
   cd ../build-qt
@@ -96,6 +97,7 @@ build() {
   cmake .. \
     -DCMAKE_BUILD_TYPE='Release' \
     -DCMAKE_SKIP_RPATH='ON' \
+    -DUSE_SYSTEM_LIBZIP='ON' \
     -DUSING_QT_UI='ON'
   make
 }