gdk-pixbuf2: fix install scripts

mingw-w64-gdk-pixbuf2/PKGBUILD

@@ -6,7 +6,7 @@ _realname=gdk-pixbuf2
 pkgbase=mingw-w64-${_realname}
 pkgname="${MINGW_PACKAGE_PREFIX}-${_realname}"
 pkgver=2.42.2
-pkgrel=1
+pkgrel=2
 pkgdesc="An image loading library (mingw-w64)"
 arch=('any')
 mingw_arch=('mingw32' 'mingw64' 'ucrt64')
@@ -23,7 +23,7 @@ depends=("${MINGW_PACKAGE_PREFIX}-gcc-libs"
          "${MINGW_PACKAGE_PREFIX}-libpng"
          "${MINGW_PACKAGE_PREFIX}-libtiff")
 options=('emptydirs')
-install=${_realname}-${CARCH}.install
+install=${_realname}-${MSYSTEM}.install
 source=("https://download.gnome.org/sources/gdk-pixbuf/${pkgver%.*}/gdk-pixbuf-${pkgver}.tar.xz"
         0003-fix-dllmain.patch
         0004-build-all-loaders-plus-gdi.patch

mingw-w64-gdk-pixbuf2/gdk-pixbuf2-MINGW32.install

@@ -0,0 +1,5 @@
+MINGW_INSTALL=mingw32
+
+pre_remove() {
+  rm -f ${MINGW_INSTALL}/lib/gdk-pixbuf-2.0/2.10.0/loaders.cache
+}

mingw-w64-gdk-pixbuf2/gdk-pixbuf2-MINGW64.install

@@ -0,0 +1,5 @@
+MINGW_INSTALL=mingw64
+
+pre_remove() {
+  rm -f ${MINGW_INSTALL}/lib/gdk-pixbuf-2.0/2.10.0/loaders.cache
+}

mingw-w64-gdk-pixbuf2/gdk-pixbuf2-UCRT64.install

@@ -0,0 +1,5 @@
+MINGW_INSTALL=ucrt64
+
+pre_remove() {
+  rm -f ${MINGW_INSTALL}/lib/gdk-pixbuf-2.0/2.10.0/loaders.cache
+}

mingw-w64-gdk-pixbuf2/gdk-pixbuf2-i686.install

@@ -1,3 +0,0 @@
-pre_remove() {
-  rm -f mingw32/lib/gdk-pixbuf-2.0/2.10.0/loaders.cache
-}

mingw-w64-gdk-pixbuf2/gdk-pixbuf2-x86_64.install

@@ -1,3 +0,0 @@
-pre_remove() {
-  rm -f mingw64/lib/gdk-pixbuf-2.0/2.10.0/loaders.cache
-}