diff --git a/compressed_archive/libarchive/libarchive-wrapper.pri b/compressed_archive/libarchive/libarchive-wrapper.pri
index 93674932..c9bcd825 100644
--- a/compressed_archive/libarchive/libarchive-wrapper.pri
+++ b/compressed_archive/libarchive/libarchive-wrapper.pri
@@ -6,7 +6,7 @@ HEADERS += $$PWD/extract_delegate.h \
 
 SOURCES += $$PWD/compressed_archive.cpp
 
-if(mingw|unix):!contains(QT_CONFIG, no-pkg-config):packagesExist(libarchive) {
+if(mingw|unix):!macx:!contains(QT_CONFIG, no-pkg-config):packagesExist(libarchive) {
   message(Using system provided libarchive installation found by pkg-config.)
   !system(pkg-config --atleast-version=3.6.0 libarchive) {
     LIBARCHIVE_WARNING = "libarchive < 3.6.0 found. Older versions of libarchive DO NOT SUPPORT RARv4 files. This is probably not what you want"
@@ -18,11 +18,14 @@ if(mingw|unix):!contains(QT_CONFIG, no-pkg-config):packagesExist(libarchive) {
   PKGCONFIG += libarchive
   DEFINES += use_libarchive
   }
-else:unix:exists(/usr/include/archive.h) {
+else:unix:!macx:exists(/usr/include/archive.h) {
   message(Using system provided libarchive installation.)
   LIBS += -larchive
   DEFINES += use_libarchive
 }
+else:if(win32|macx) {
+  error(Unsupported: the libarchive decompression backend is not currently supported on this system.)
+}
 else {
   error(Missing dependency: libarchive decompression backend. Please install libarchive on your system)
 }