1 files changed, 49 insertions, 0 deletions
diff --git a/extra/virtualbox/PKGBUILD b/extra/virtualbox/PKGBUILD
new file mode 100644
index 00000000..037684be
--- /dev/null
+++ b/extra/virtualbox/PKGBUILD
@@ -0,0 +1,49 @@
+# set manually sysctl vm.mmap_min_addr=0 before building this package
+
+# linker runs out of memory on 32-bit
+eval "$(
+  declare -f build | \
+    sed '
+      3 i LDFLAGS+=" -Wl,--no-keep-memory"
+      3 i CFLAGS+=" -g1"
+      3 i CXXFLAGS+=" -g1"
+    '
+)"  
+
+# Parallel builds lead to "virtual memory exhausted"?
+# not sure, if still needed (or in fact, working)
+eval "$(
+  declare -f build | \
+    sed '
+      \@^\s*echo @ {
+        N
+        \@\n\s*kmk @ d
+      }
+      s|kmk|kmk -j 1|
+    ' | \
+    sed '
+      \@^\s*\./configure @ {
+        s@--disable-\S\+@@g
+        s@--enable-\S\+@@g
+        s@configure @\0--only-additions --disable-kmods @
+      }
+    ';
+)"
+
+pkgname=(
+  $(
+    printf '%s\n' "${pkgname[@]}" \
+    | grep '^virtualbox-guest-' \
+    | grep -v -- '-nox$'
+  )
+)
+
+# let's not use too much memory, gcc tmpfiles can in this
+# case also be put on a real /tmp (instead of tmpfs) to reduce
+# preasure on the RAM
+eval "$(
+  declare -f build | \
+    sed '
+      /source/ i \ sed -i 's/-pipe//g' Config.kmk
+    '
+)"