diff --git a/core/baseinit/build b/core/baseinit/build
index 7a0767b1..570a85f6 100755
--- a/core/baseinit/build
+++ b/core/baseinit/build
@@ -10,6 +10,6 @@ cp -R lib "$1/usr/lib"
 # Disable warning as CFLAGS must work this way.
 # shellcheck disable=2086
 for bin in kpow kall; do
-    "${CC:-cc}" -o "$1/usr/bin/$bin" "bin/$bin.c" $CFLAGS -static
+    "$CC" -o "$1/usr/bin/$bin" "bin/$bin.c" $CFLAGS -static
     cp -f "bin/$bin.c" "$1/usr/share/doc/kiss/init/$bin.c"
 done
diff --git a/core/binutils/build b/core/binutils/build
index 01179256..2cdb8b24 100755
--- a/core/binutils/build
+++ b/core/binutils/build
@@ -28,6 +28,6 @@ export PATH=$PATH:$PWD
 
 make configure-host
 make tooldir=/usr
-make DESTDIR="$1" tooldir=/usr install
+make tooldir=/usr install
 
 ln -sf ld.bfd "$1/usr/bin/ld"
diff --git a/core/bison/build b/core/bison/build
index 4e807e29..681072ec 100755
--- a/core/bison/build
+++ b/core/bison/build
@@ -7,7 +7,7 @@
 
 make
 
-make DESTDIR="$1" \
+make \
     install-libLIBRARIES \
     install-binPROGRAMS \
     install-nodist_binSCRIPTS \
diff --git a/core/busybox/build b/core/busybox/build
index cece6c2c..56452dd9 100755
--- a/core/busybox/build
+++ b/core/busybox/build
@@ -5,8 +5,8 @@ for patch in patch/*.patch; do
 done
 
 # Remove forced gcc/g++ usage so builds work on gcc-less systems.
-sed -e "s#= g[c+][c+]#= ${CC:=cc}#g" \
-    -e "s#\(\$(CROSS_COMPILE)\)gcc#\1${CC}#g" Makefile > _
+sed -e "s#= g[c+][c+]#= $CC#g" \
+    -e "s#\(\$(CROSS_COMPILE)\)gcc#\1$CC#g" Makefile > _
 mv -f _ Makefile
 
 case $("$CC" --version) in *clang*)
@@ -16,13 +16,13 @@ case $("$CC" --version) in *clang*)
 
     # Ensure that busybox's build system is aware that 'cc' may point
     # to clang rather than GCC. This is the case in non-GCC systems.
-    sed "s&\(\$(CC),\)clang&\1${CC}&g" Makefile.flags > _
+    sed "s&\(\$(CC),\)clang&\1$CC&g" Makefile.flags > _
     mv -f _ Makefile.flags
 esac
 
 # Build and install regular busybox.
 # This excludes utilities which require 'suid' to function.
-make CC="$CC" HOSTCC="$CC"
+make HOSTCC="$CC"
 make CONFIG_PREFIX="$1/usr" install
 
 # Rename the binary temporarily.
@@ -31,7 +31,7 @@ mv "$1/usr/bin/busybox" "$1/usr/bin/busybox-nosuid"
 # Build and install suid busybox.
 # This _only_ includes utlities which require 'suid' to function.
 cp -f .config-suid .config
-make CC="$CC" HOSTCC="$CC"
+make HOSTCC="$CC"
 make CONFIG_PREFIX="$1/usr" install
 
 # Aptly name the busybox binaries.
diff --git a/core/bzip2/build b/core/bzip2/build
index 1759aae2..0d15b4c8 100755
--- a/core/bzip2/build
+++ b/core/bzip2/build
@@ -1,7 +1,7 @@
 #!/bin/sh -e
 
-make CC="${CC:-cc} $CFLAGS -fPIC $LDFLAGS" -f Makefile-libbz2_so
-make CC="${CC:-cc} $CFLAGS -static -fPIC $LDFLAGS" bzip2
+make CC="$CC $CFLAGS -fPIC $LDFLAGS" -f Makefile-libbz2_so
+make CC="$CC $CFLAGS -static -fPIC $LDFLAGS" bzip2
 
 mkdir -p \
     "$1/usr/bin" \
diff --git a/core/curl/build b/core/curl/build
index e6fd1430..7c25ea12 100755
--- a/core/curl/build
+++ b/core/curl/build
@@ -19,4 +19,4 @@
     --without-zstd
 
 make curl_LDFLAGS=-all-static
-make DESTDIR="$1" install
+make install
diff --git a/core/flex/build b/core/flex/build
index 549364be..f88d01c7 100755
--- a/core/flex/build
+++ b/core/flex/build
@@ -6,7 +6,7 @@
     ac_cv_func_realloc_0_nonnull=yes
 
 make
-make DESTDIR="$1" install
+make install
 
 ln -s flex "$1/usr/bin/lex"
 
diff --git a/core/gcc/build b/core/gcc/build
index 101f25dd..548380eb 100755
--- a/core/gcc/build
+++ b/core/gcc/build
@@ -58,7 +58,7 @@ export libat_cv_have_ifunc=no
     "${bootstrap:---enable-bootstrap}"
 
 make
-make DESTDIR="$1" install
+make install
 
 # Save 35MB.
 find "$1" -name libgtkpeer.a  -exec rm -f {} +
diff --git a/core/git/build b/core/git/build
index c706425d..7354255f 100755
--- a/core/git/build
+++ b/core/git/build
@@ -24,6 +24,6 @@ EOF
     ac_cv_fread_reads_directories=yes
 
 make LIBS="$(curl-config --static-libs) libgit.a xdiff/lib.a -lz"
-make DESTDIR="$1" install
+make install
 
 cp -Rf man "$1/usr/share/man"
diff --git a/core/grub/build b/core/grub/build
index e87b0b3e..6c449bd7 100755
--- a/core/grub/build
+++ b/core/grub/build
@@ -18,10 +18,6 @@ done
 CFLAGS=$(printf %s "$CFLAGS"   | sed 's/-march=[^ ]*//g')
 CFLAGS=$(printf %s "$CXXFLAGS" | sed 's/-march=[^ ]*//g')
 
-# Grub is built in a function so the script argument
-# needs to be stored.
-pkg_dir=$1
-
 build_grub() (
     cd "grub-${1##*=}"
 
@@ -36,7 +32,7 @@ build_grub() (
         "$@"
 
     make
-    make DESTDIR="$pkg_dir" install
+    make install
 )
 
 build_grub --with-platform=pc
@@ -47,7 +43,7 @@ cp -f grub.default "$1/etc/default/grub"
 
 # Remove gdb debugging files.
 (
-    cd "$pkg_dir/usr/lib"
+    cd "$1/usr/lib"
 
     rm -f grub/*/*.module
     rm -f grub/*/*.image
diff --git a/core/linux-headers/build b/core/linux-headers/build
index e4cb5109..45b23abb 100755
--- a/core/linux-headers/build
+++ b/core/linux-headers/build
@@ -1,6 +1,6 @@
 #!/bin/sh -e
 
-make HOSTCC="${CC:-cc}" headers
+make HOSTCC="$CC" headers
 
 # The headers require rsync for installation, this command
 # simply does the equivalent using find, mkdir and cp.
diff --git a/core/m4/build b/core/m4/build
index 206a476a..db0f508c 100755
--- a/core/m4/build
+++ b/core/m4/build
@@ -6,4 +6,4 @@ export CFLAGS="$CFLAGS -static"
     --prefix=/usr
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/core/make/build b/core/make/build
index 206a476a..db0f508c 100755
--- a/core/make/build
+++ b/core/make/build
@@ -6,4 +6,4 @@ export CFLAGS="$CFLAGS -static"
     --prefix=/usr
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/core/musl/build b/core/musl/build
index 2c0e089e..d410bf9b 100755
--- a/core/musl/build
+++ b/core/musl/build
@@ -10,7 +10,7 @@
 #   --enable-debug
 
 make
-make DESTDIR="$1" install
+make install
 
 mkdir -p "$1/usr/bin"
 ln -s  /usr/lib/ld-musl-x86_64.so.1 "$1/usr/bin/ldd"
diff --git a/core/openssl/build b/core/openssl/build
index cdab7d1b..240bd480 100755
--- a/core/openssl/build
+++ b/core/openssl/build
@@ -1,9 +1,5 @@
 #!/bin/sh -e
 
-# Build with CC for clang compatibility.
-# If CC is unset, GCC is forced.
-export CC="${CC:-cc}"
-
 ./Configure \
     --prefix=/usr \
     --openssldir=/etc/ssl \
@@ -31,5 +27,5 @@ cp -f update-certdata.sh "$1/etc/ssl"
         --with-openssl="$1/usr"
 
     make
-    make DESTDIR="$1" install
+    make install
 )
diff --git a/core/pigz/build b/core/pigz/build
index e0219aa3..6f2e5864 100755
--- a/core/pigz/build
+++ b/core/pigz/build
@@ -1,15 +1,20 @@
-#!/bin/sh -e
+#!/bin/sh -ef
+#
+# Intentional, globbing disabled.
+# shellcheck disable=2086
 
-make CC="${CC:-cc} -static"
+set -- pigz.o yarn.o try.o
+
+for f do
+    "$CC" -c -o "$f" "${f%%.o}.c" $CPPFLAGS -DNOZOPFLI $CFLAGS
+done
+"$CC" -static -o pigz "$@" $CPPFLAGS $CFLAGS -lz $LDFLAGS
 
 mkdir -p \
-    "$1/usr/bin" \
-    "$1/usr/share/man/man1"
+    "$DESTDIR/usr/bin" \
+    "$DESTDIR/usr/share/man/man1"
 
-cp -f pigz unpigz "$1/usr/bin"
-cp -f pigz.1 "$1/usr/share/man/man1"
-
-ln -sf pigz   "$1/usr/bin/gzip"
-ln -sf pigz   "$1/usr/bin/zcat"
-ln -sf unpigz "$1/usr/bin/gunzip"
-ln -sf pigz.1 "$1/usr/share/man/man1/gzip.1"
+cp  -f pigz   "$DESTDIR/usr/bin"
+ln -sf pigz   "$DESTDIR/usr/bin/gzip"
+cp  -f pigz.1 "$DESTDIR/usr/share/man/man1"
+ln -sf pigz.1 "$DESTDIR/usr/share/man/man1/gzip.1"
diff --git a/core/pigz/depends b/core/pigz/depends
new file mode 100644
index 00000000..17a6d43d
--- /dev/null
+++ b/core/pigz/depends
@@ -0,0 +1 @@
+zlib make
diff --git a/core/pigz/post-install b/core/pigz/post-install
new file mode 100755
index 00000000..209e7164
--- /dev/null
+++ b/core/pigz/post-install
@@ -0,0 +1,10 @@
+#!/bin/sh -e
+
+cat <<EOF
+
+The commands zcat, unpigz and gunzip were merely symbolic
+links to the pigz binary. They have been removed. To gain
+them back, create the symlinks (or use an alias or shell
+function).
+
+EOF
diff --git a/core/pigz/version b/core/pigz/version
index eb0c981f..837059ed 100644
--- a/core/pigz/version
+++ b/core/pigz/version
@@ -1 +1 @@
-2.6 1
+2.6 2
diff --git a/core/xz/build b/core/xz/build
index 026d55dc..b34dcf66 100755
--- a/core/xz/build
+++ b/core/xz/build
@@ -6,4 +6,4 @@
     --disable-nls
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/core/zlib/build b/core/zlib/build
index 2426a8e7..69f99c1d 100755
--- a/core/zlib/build
+++ b/core/zlib/build
@@ -8,4 +8,4 @@ export CFLAGS="$CFLAGS -fPIC"
     --shared
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/extra/adwaita-icon-theme/build b/extra/adwaita-icon-theme/build
index 6daf22f8..76301af8 100755
--- a/extra/adwaita-icon-theme/build
+++ b/extra/adwaita-icon-theme/build
@@ -4,4 +4,4 @@
     --prefix=/usr
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/extra/alsa-lib/build b/extra/alsa-lib/build
index d6f70b3d..24194801 100755
--- a/extra/alsa-lib/build
+++ b/extra/alsa-lib/build
@@ -5,4 +5,4 @@
     --prefix=/usr
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/extra/alsa-utils/build b/extra/alsa-utils/build
index 22c739fe..6a561fe4 100755
--- a/extra/alsa-utils/build
+++ b/extra/alsa-utils/build
@@ -10,4 +10,4 @@
     --disable-nls
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/extra/atk/build b/extra/atk/build
index f16bc3e8..4f4a7316 100755
--- a/extra/atk/build
+++ b/extra/atk/build
@@ -1,7 +1,5 @@
 #!/bin/sh -e
 
-export DESTDIR="$1"
-
 # Don't build tests.
 sed "/subdir('tests')/d" meson.build > _
 mv -f _ meson.build
diff --git a/extra/cairo/build b/extra/cairo/build
index 7fac45ed..813c782c 100755
--- a/extra/cairo/build
+++ b/extra/cairo/build
@@ -24,4 +24,4 @@ mv -f _ Makefile.in
     --disable-gtk-doc-html
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/extra/ccache/build b/extra/ccache/build
index 61738ef0..ac4d1083 100755
--- a/extra/ccache/build
+++ b/extra/ccache/build
@@ -1,6 +1,5 @@
 #!/bin/sh -e
 
-export DESTDIR="$1"
 export CFLAGS="$CFLAGS -static"
 export CXXFLAGS="$CXXFLAGS -static"
 
diff --git a/extra/clang/build b/extra/clang/build
index 416184f5..58899769 100755
--- a/extra/clang/build
+++ b/extra/clang/build
@@ -1,7 +1,5 @@
 #!/bin/sh -e
 
-export DESTDIR="$1"
-
 cmake -B build \
     -DCMAKE_INSTALL_PREFIX=/usr \
     -DCMAKE_BUILD_TYPE=Release \
diff --git a/extra/cmake/build b/extra/cmake/build
index 61d1457e..5d908094 100755
--- a/extra/cmake/build
+++ b/extra/cmake/build
@@ -3,8 +3,6 @@
 patch -p1 < cmake-no-execinfo.patch
 
 if kiss l cmake; then
-    export DESTDIR="$1"
-
     cmake -B build \
         -DCMAKE_INSTALL_PREFIX=/usr \
         -DCMAKE_BUILD_TYPE=Release \
@@ -26,7 +24,7 @@ else
         --system-bzip2
 
     make
-    make DESTDIR="$1" install
+    make install
 fi
 
 rm -rf \
diff --git a/extra/dhcpcd/build b/extra/dhcpcd/build
index ed111cf4..3c49d7d3 100755
--- a/extra/dhcpcd/build
+++ b/extra/dhcpcd/build
@@ -8,7 +8,7 @@
     --libexecdir=/usr/lib/dhcpcd
 
 make
-make DESTDIR="$1" install
+make install
 
 # Install runit service.
 mkdir -p "$1/etc/sv/dhcpcd"
diff --git a/extra/dosfstools/build b/extra/dosfstools/build
index efcf47c7..53a77c41 100755
--- a/extra/dosfstools/build
+++ b/extra/dosfstools/build
@@ -11,4 +11,4 @@ mv -f _ Makefile.in
     --enable-compat-symlinks
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/extra/e2fsprogs/build b/extra/e2fsprogs/build
index 4eaa5c6f..c5eb1c88 100755
--- a/extra/e2fsprogs/build
+++ b/extra/e2fsprogs/build
@@ -16,10 +16,7 @@ export LDFLAGS="$LDFLAGS -static"
 
 make
 
-dest=$1
-
 set -- \
-    DESTDIR="$dest" \
     MKDIR_P="mkdir -p" \
     BLKID_MAN="" \
     BLKID_PROG="" \
diff --git a/extra/efibootmgr/build b/extra/efibootmgr/build
index db54756c..25db8f18 100755
--- a/extra/efibootmgr/build
+++ b/extra/efibootmgr/build
@@ -1,6 +1,6 @@
 #!/bin/sh -e
 
-make CC="${CC:-cc}" EFIDIR=/boot/EFI efibootmgr
+make EFIDIR=/boot/EFI efibootmgr
 
 mkdir -p \
     "$1/usr/bin" \
diff --git a/extra/efivar/build b/extra/efivar/build
index 27f04243..67b980e3 100755
--- a/extra/efivar/build
+++ b/extra/efivar/build
@@ -17,5 +17,5 @@ mk() {
         "$@"
 }
 
-mk CC="${CC:-cc}"
-mk DESTDIR="$1" install
+mk COMPILER="$CC"
+mk install
diff --git a/extra/eiwd/build b/extra/eiwd/build
index cd386de3..99f9289c 100755
--- a/extra/eiwd/build
+++ b/extra/eiwd/build
@@ -7,7 +7,7 @@
     --disable-dbus
 
 make
-make DESTDIR="$1" install
+make install
 
 # Install runit service.
 install -Dm755 eiwd.run         "$1/etc/sv/eiwd/run"
diff --git a/extra/expat/build b/extra/expat/build
index ce48d57e..e336fc14 100755
--- a/extra/expat/build
+++ b/extra/expat/build
@@ -8,9 +8,7 @@
     --without-docbook
 
 make
-make DESTDIR="$1" install
+make install
 
 # Remove documentation (Changelogs, etc).
-# False positive.
-# shellcheck disable=SC2115
-rm -rf "$1/usr/share"
+rm -rf "${1:?}/usr/share"
diff --git a/extra/ffmpeg/build b/extra/ffmpeg/build
index d0708a79..fa1cca24 100755
--- a/extra/ffmpeg/build
+++ b/extra/ffmpeg/build
@@ -1,8 +1,8 @@
 #!/bin/sh -e
 
 ./configure \
-    --cc="${CC:-cc}" \
-    --cxx="${CXX:-c++}" \
+    --cc="$CC" \
+    --cxx="$CXX" \
     --prefix=/usr \
     --disable-debug \
     --disable-libxml2 \
@@ -30,6 +30,6 @@
     --x86asmexe=nasm \
 
 make
-make DESTDIR="$1" install
+make install
 
 rm -rf "$1/usr/share/ffmpeg/examples"
diff --git a/extra/firefox/build b/extra/firefox/build
index 70737384..80ea0fd0 100755
--- a/extra/firefox/build
+++ b/extra/firefox/build
@@ -40,15 +40,10 @@ mv -f _ "$_f"
 export PATH="$PWD/junk/bin:$PATH"
 
 # If using libc++, CXXSTDLIB needs to be set manually.
-case $("${CC:-cc}" -print-file-name=libc++.so) in */*)
+case $("$CC" -print-file-name=libc++.so) in */*)
     export CXXSTDLIB=c++
 esac
 
-# Bypass 'ccache' as it's totally useless when building
-# Firefox and only slows things down.
-export CC="${CC:-/usr/bin/cc}"
-export CXX="${CXX:-/usr/bin/c++}"
-
 export LDFLAGS="$LDFLAGS -Wl,-rpath=/usr/lib/firefox,--enable-new-dtags"
 export RUSTFLAGS="$RUSTFLAGS -Cdebuginfo=0"
 export MACH_USE_SYSTEM_PYTHON=1
@@ -103,7 +98,7 @@ ac_add_options --disable-webrtc
 EOF
 
 ./mach build
-DESTDIR="$1" ./mach install
+./mach install
 
 # Remove a lot of uneeded "stuff".
 rm -rf \
diff --git a/extra/fontconfig/build b/extra/fontconfig/build
index efaf9196..d0ca1ff7 100755
--- a/extra/fontconfig/build
+++ b/extra/fontconfig/build
@@ -10,4 +10,4 @@
     --disable-nls
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/extra/freetype-harfbuzz/build b/extra/freetype-harfbuzz/build
index c8901649..98d8e24a 100755
--- a/extra/freetype-harfbuzz/build
+++ b/extra/freetype-harfbuzz/build
@@ -10,7 +10,7 @@ build_freetype() (
         --with-harfbuzz="$2"
 
     make
-    make DESTDIR="$1" install
+    make install
 )
 
 build_harfbuzz() (
@@ -18,7 +18,6 @@ build_harfbuzz() (
     export CFLAGS="$CFLAGS -I$1/usr/include/freetype2"
     export CXXFLAGS="$CXXFLAGS -I$1/usr/include/freetype2"
     export LDFLAGS="$LDFLAGS -L$1/usr/lib"
-    export DESTDIR="$1"
 
     cd harfbuzz
 
diff --git a/extra/gcompat/build b/extra/gcompat/build
index d18b51ef..c70722f8 100755
--- a/extra/gcompat/build
+++ b/extra/gcompat/build
@@ -11,7 +11,7 @@ mv -f _ Makefile
 export PKG_CONFIG=/bin/true
 
 make LINKER_PATH=/usr/lib/ld-musl-x86_64.so.1
-make DESTDIR="$1" install
+make install
 
 ln -s ld-linux.so.2 "$1/usr/lib/ld-linux-x86-64.so.2"
 
diff --git a/extra/gdk-pixbuf/build b/extra/gdk-pixbuf/build
index 504cd1a6..36171941 100755
--- a/extra/gdk-pixbuf/build
+++ b/extra/gdk-pixbuf/build
@@ -1,7 +1,5 @@
 #!/bin/sh -e
 
-export DESTDIR="$1"
-
 sed "/subdir('tests')/d" meson.build > _
 mv -f _ meson.build
 
diff --git a/extra/giflib/build b/extra/giflib/build
index 431cc725..550cfc89 100755
--- a/extra/giflib/build
+++ b/extra/giflib/build
@@ -1,4 +1,4 @@
 #!/bin/sh -e
 
 make
-make DESTDIR="$1" PREFIX=/usr install
+make PREFIX=/usr install
diff --git a/extra/glib/build b/extra/glib/build
index b63bb2e9..95d5f541 100755
--- a/extra/glib/build
+++ b/extra/glib/build
@@ -1,7 +1,5 @@
 #!/bin/sh -e
 
-export DESTDIR="$1"
-
 # Remove 'libelf' dependency.
 sed 's/HAVE_LIBELF/HAVE_KISS/' gio/meson.build > _
 mv -f _ gio/meson.build
diff --git a/extra/gnugrep/build b/extra/gnugrep/build
index fbb8421d..7225fde1 100755
--- a/extra/gnugrep/build
+++ b/extra/gnugrep/build
@@ -6,6 +6,6 @@ export CFLAGS="$CFLAGS -Wno-error -static"
     --prefix=/usr
 
 make
-make DESTDIR="$1" install
+make install
 
 cp -f src/grep "$1/usr/bin/ggrep"
diff --git a/extra/gnupg1/build b/extra/gnupg1/build
index 78f741bb..11dda66f 100755
--- a/extra/gnupg1/build
+++ b/extra/gnupg1/build
@@ -11,4 +11,4 @@ export CFLAGS="$CFLAGS -fcommon"
     --disable-nls
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/extra/gperf/build b/extra/gperf/build
index 761412ef..66de2a19 100755
--- a/extra/gperf/build
+++ b/extra/gperf/build
@@ -4,7 +4,7 @@
     --prefix=/usr
 
 make
-make DESTDIR="$1" install
+make install
 
 # Remove HTML documentation.
 rm -rf "$1/usr/share/doc"
diff --git a/extra/gtk+3/build b/extra/gtk+3/build
index c2616cea..59319fed 100755
--- a/extra/gtk+3/build
+++ b/extra/gtk+3/build
@@ -17,8 +17,6 @@ patch -p1 < schemas.patch
         -Dintrospection=false \
         . output
 
-    export DESTDIR="$1"
-
     ninja -C output
     ninja -C output install
 )
@@ -57,7 +55,7 @@ mv -f _ Makefile.in
     --enable-gtk-doc-html=no
 
 make
-make DESTDIR="$1" install
+make install
 
 # We don't compile with librsvg which leads to this
 # utility solely causing compiler errors for some
diff --git a/extra/hicolor-icon-theme/build b/extra/hicolor-icon-theme/build
index c647b8ef..0402819f 100755
--- a/extra/hicolor-icon-theme/build
+++ b/extra/hicolor-icon-theme/build
@@ -3,4 +3,4 @@
 ./configure \
     --prefix=/usr
 
-make DESTDIR="$1" install
+make install
diff --git a/extra/intel-vaapi-driver/build b/extra/intel-vaapi-driver/build
index f4cca6c9..ed2d5d3f 100755
--- a/extra/intel-vaapi-driver/build
+++ b/extra/intel-vaapi-driver/build
@@ -1,7 +1,5 @@
 #!/bin/sh -e
 
-export DESTDIR="$1"
-
 # Fix build fail with GCC 10.
 export CFLAGS="$CFLAGS -fcommon"
 
diff --git a/extra/json-c/build b/extra/json-c/build
index 7f4f480b..725ba042 100755
--- a/extra/json-c/build
+++ b/extra/json-c/build
@@ -1,7 +1,5 @@
 #!/bin/sh -e
 
-export DESTDIR="$1"
-
 cmake -B build \
     -DCMAKE_INSTALL_PREFIX=/usr \
     -DCMAKE_INSTALL_LIBDIR=lib \
diff --git a/extra/lame/build b/extra/lame/build
index 50e8ce45..5e5ea18c 100755
--- a/extra/lame/build
+++ b/extra/lame/build
@@ -12,4 +12,4 @@ mv -f _ doc/Makefile.in
     --disable-gtktest
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/extra/libass/build b/extra/libass/build
index 14a26781..5478da0e 100755
--- a/extra/libass/build
+++ b/extra/libass/build
@@ -15,4 +15,4 @@ chmod +x configure
     --enable-fontconfig
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/extra/libelf/build b/extra/libelf/build
index 6eca5094..ec90b094 100755
--- a/extra/libelf/build
+++ b/extra/libelf/build
@@ -23,8 +23,8 @@ mv -f _ lib/Makefile.in
 # Skip the default make target and build only what we need.
 make -C lib
 make -C libelf
-make -C libelf DESTDIR="$1" install
-make -C doc    DESTDIR="$1" install-man3
+make -C libelf install
+make -C doc    install-man3
 
 mkdir -p "$1/usr/lib/pkgconfig"
 cp -f config/libelf.pc "$1/usr/lib/pkgconfig/libelf.pc"
diff --git a/extra/libepoxy/build b/extra/libepoxy/build
index 5a14dfa2..a4bddba8 100755
--- a/extra/libepoxy/build
+++ b/extra/libepoxy/build
@@ -1,7 +1,5 @@
 #!/bin/sh -e
 
-export DESTDIR="$1"
-
 meson \
     --prefix=/usr \
     --sysconfdir=/etc \
diff --git a/extra/libffi/build b/extra/libffi/build
index d73e2226..6ab369d0 100755
--- a/extra/libffi/build
+++ b/extra/libffi/build
@@ -6,7 +6,7 @@
     --with-pic
 
 make
-make DESTDIR="$1" install
+make install
 
 # Maintain compatibility and avoid the need
 # for rebuilds of all packages linking to
diff --git a/extra/libjpeg-turbo/build b/extra/libjpeg-turbo/build
index 9fabf405..cb77f394 100755
--- a/extra/libjpeg-turbo/build
+++ b/extra/libjpeg-turbo/build
@@ -1,7 +1,5 @@
 #!/bin/sh -e
 
-export DESTDIR="$1"
-
 patch -p1 < no-docs.patch
 
 cmake -B build \
diff --git a/extra/libogg/build b/extra/libogg/build
index 6723fadc..23f4c481 100755
--- a/extra/libogg/build
+++ b/extra/libogg/build
@@ -4,12 +4,7 @@
     --prefix=/usr
 
 make -C src
+make -C include install
+make -C src     install
 
-# Install library and headers.
-make -C include DESTDIR="$1" install
-make -C src     DESTDIR="$1" install
-
-# Install m4 and pkg-config data.
-make DESTDIR="$1" \
-    install-m4dataDATA \
-    install-pkgconfigDATA
+make install-m4dataDATA install-pkgconfigDATA
diff --git a/extra/libpng/build b/extra/libpng/build
index 5be67a84..f5f28757 100755
--- a/extra/libpng/build
+++ b/extra/libpng/build
@@ -6,4 +6,4 @@ patch -p1 < libpng-1.6.37-apng.patch
     --prefix=/usr
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/extra/libtheora/build b/extra/libtheora/build
index 2faa3e26..1f1d4cb0 100755
--- a/extra/libtheora/build
+++ b/extra/libtheora/build
@@ -6,6 +6,6 @@ patch -p0 < libtheora-1.1.1-libpng16.patch
     --prefix=/usr
 
 make
-make -C lib     DESTDIR="$1" install
-make -C include DESTDIR="$1" install
-make            DESTDIR="$1" install-pkgconfigDATA
+make -C lib     install
+make -C include install
+make install-pkgconfigDATA
diff --git a/extra/libudev-zero/build b/extra/libudev-zero/build
index 28bda353..21cd2e73 100755
--- a/extra/libudev-zero/build
+++ b/extra/libudev-zero/build
@@ -1,4 +1,4 @@
 #!/bin/sh -e
 
 make PREFIX=/usr
-make DESTDIR="$1" PREFIX=/usr install
+make PREFIX=/usr install
diff --git a/extra/libva-utils/build b/extra/libva-utils/build
index fd5a0757..42713b2a 100755
--- a/extra/libva-utils/build
+++ b/extra/libva-utils/build
@@ -1,7 +1,5 @@
 #!/bin/sh -e
 
-export DESTDIR="$1"
-
 meson \
     --prefix=/usr \
     --sysconfdir=/etc \
diff --git a/extra/libva/build b/extra/libva/build
index cac70ae2..77e10c4e 100755
--- a/extra/libva/build
+++ b/extra/libva/build
@@ -1,7 +1,5 @@
 #!/bin/sh -e
 
-export DESTDIR="$1"
-
 meson \
     --prefix=/usr \
     --sysconfdir=/etc \
diff --git a/extra/libvorbis/build b/extra/libvorbis/build
index e56632be..5f88d413 100755
--- a/extra/libvorbis/build
+++ b/extra/libvorbis/build
@@ -5,12 +5,8 @@
 
 make
 
-# Install library and headers.
-make -C lib     DESTDIR="$1" install
-make -C include DESTDIR="$1" install
+make -C lib     install
+make -C include install
 
-# Install m4 and pkg-config data.
-make DESTDIR="$1" \
-    install-m4dataDATA \
-    install-pkgconfigDATA
+make install-m4dataDATA install-pkgconfigDATA
 
diff --git a/extra/libvpx/build b/extra/libvpx/build
index 7ca7cd7d..53cd0c2a 100755
--- a/extra/libvpx/build
+++ b/extra/libvpx/build
@@ -1,7 +1,5 @@
 #!/bin/sh -e
 
-export CC=${CC:-cc} CXX=${CXX:-c++}
-
 # Remove the perl requirement from configure.
 # Also fix issue with non-GNU diff.
 sed 's/perl/:/g;s/diff --version/command -v diff/' configure > _
@@ -28,4 +26,4 @@ chmod +x configure
     --as=nasm
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/extra/libwebp/build b/extra/libwebp/build
index 9b42927e..049da6e4 100755
--- a/extra/libwebp/build
+++ b/extra/libwebp/build
@@ -8,4 +8,4 @@
     --enable-libwebpdecoder
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/extra/llvm/build b/extra/llvm/build
index 76633e73..66ad155b 100755
--- a/extra/llvm/build
+++ b/extra/llvm/build
@@ -1,7 +1,5 @@
 #!/bin/sh -e
 
-export DESTDIR="$1"
-
 cmake -B build \
     -DCMAKE_INSTALL_PREFIX=/usr \
     -DCMAKE_BUILD_TYPE=Release \
diff --git a/extra/lzip/build b/extra/lzip/build
index 6daf22f8..76301af8 100755
--- a/extra/lzip/build
+++ b/extra/lzip/build
@@ -4,4 +4,4 @@
     --prefix=/usr
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/extra/mandoc/build b/extra/mandoc/build
index 702ca364..9854cc2a 100755
--- a/extra/mandoc/build
+++ b/extra/mandoc/build
@@ -8,7 +8,7 @@ sed 's,"more -s","less",g' main.c > _
 mv -f _ main.c
 
 # Use CC rather than broken default.
-sed "s/CC=.*/CC=${CC:-cc}/" configure > _
+sed "s/CC=.*/CC=$CC/" configure > _
 mv -f _ configure
 chmod +x configure
 
@@ -17,7 +17,6 @@ PREFIX=/usr
 MANDIR=/usr/share/man
 LIBDIR=/usr/lib
 SBINDIR=/usr/bin
-CC="${CC:-cc}"
 CFLAGS="$CFLAGS -fcommon"
 LN="ln -sf"
 EOF
@@ -25,4 +24,4 @@ EOF
 ./configure
 
 make
-make -j1 DESTDIR="$1" base-install
+make -j1 base-install
diff --git a/extra/mesa/build b/extra/mesa/build
index 0d9b3d45..d9a8cd4b 100755
--- a/extra/mesa/build
+++ b/extra/mesa/build
@@ -24,7 +24,6 @@
 }
 
 export PYTHONPATH
-export DESTDIR="$1"
 export CFLAGS="$CFLAGS -DGLX_X86_READONLY_TEXT"
 
 # Fix issues with musl and firefox.
diff --git a/extra/mutt/build b/extra/mutt/build
index a2c26046..697d6822 100755
--- a/extra/mutt/build
+++ b/extra/mutt/build
@@ -35,6 +35,6 @@ mv -f _ Makefile.in
     --with-sasl="$out/usr"
 
 make
-make DESTDIR="$1" install-exec
+make install-exec
 
 rm -f "$1/etc/mime.types"
diff --git a/extra/nasm/build b/extra/nasm/build
index 6daf22f8..76301af8 100755
--- a/extra/nasm/build
+++ b/extra/nasm/build
@@ -4,4 +4,4 @@
     --prefix=/usr
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/extra/ncurses/build b/extra/ncurses/build
index 30d99b76..74b21116 100755
--- a/extra/ncurses/build
+++ b/extra/ncurses/build
@@ -14,7 +14,7 @@
     --without-cxx-binding
 
 make
-make DESTDIR="$1" install
+make install
 
 # Force ncurses to link against wide-character ncurses library.
 for lib in ncurses form panel menu; do
diff --git a/extra/nodejs/build b/extra/nodejs/build
index a9aec844..aeb8310e 100755
--- a/extra/nodejs/build
+++ b/extra/nodejs/build
@@ -8,8 +8,6 @@
     mv -f _ node.gyp
 }
 
-export CC="${CC:-cc}" CXX="${CXX:-c++}"
-
 ./configure \
     --shared-zlib \
     --shared-openssl \
diff --git a/extra/opendoas/build b/extra/opendoas/build
index 3f2d4de7..ca6b1b57 100755
--- a/extra/opendoas/build
+++ b/extra/opendoas/build
@@ -11,7 +11,7 @@ mv -f _ GNUmakefile
     --without-pam
 
 make
-make DESTDIR="$1" install
+make install
 
 mkdir -p "$1/etc"
 cp -f doas.conf "$1/etc"
diff --git a/extra/openresolv/build b/extra/openresolv/build
index 9b9fa59d..d4257db8 100755
--- a/extra/openresolv/build
+++ b/extra/openresolv/build
@@ -6,4 +6,4 @@
     --sysconfdir=/etc
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/extra/opus/build b/extra/opus/build
index 23f46765..9f5fc699 100755
--- a/extra/opus/build
+++ b/extra/opus/build
@@ -6,4 +6,4 @@
     --enable-float-approx
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/extra/pango/build b/extra/pango/build
index 90a0a188..290d7379 100755
--- a/extra/pango/build
+++ b/extra/pango/build
@@ -1,7 +1,5 @@
 #!/bin/sh -e
 
-export DESTDIR="$1"
-
 patch -p1 < no-fribidi.patch
 
 # First substitution disables weird case where build may try to git clone
diff --git a/extra/patchelf/build b/extra/patchelf/build
index 408924d9..fe414734 100755
--- a/extra/patchelf/build
+++ b/extra/patchelf/build
@@ -4,6 +4,6 @@
     --prefix=/usr
 
 make
-make DESTDIR="$1" install
+make install
 
 rm -rf "$1/usr/share/doc"
diff --git a/extra/pcre/build b/extra/pcre/build
index 4ee3fae2..4a375d24 100755
--- a/extra/pcre/build
+++ b/extra/pcre/build
@@ -5,6 +5,6 @@
     --enable-unicode-properties
 
 make
-make DESTDIR="$1" install
+make install
 
 rm -rf "$1/usr/share/doc"
diff --git a/extra/perl/build b/extra/perl/build
index a605859c..5bec1921 100755
--- a/extra/perl/build
+++ b/extra/perl/build
@@ -20,10 +20,10 @@ export CFLAGS="$CFLAGS -DNO_POSIX_2008_LOCALE -D_GNU_SOURCE"
     -Dlddlflags="-shared $LDFLAGS" \
     -Dldflags="$LDFLAGS" \
     -Doptimize="-Wall $CFLAGS" \
-    -Dcc="${CC:-cc}" \
-    -Dar="${AR:-ar}" \
-    -Dnm="${NM:-nm}" \
-    -Dranlib="${RANLIB:-ranlib}" \
+    -Dcc="$CC" \
+    -Dar="$AR" \
+    -Dnm="$NM" \
+    -Dranlib="$RANLIB" \
     -Dman1dir=/usr/share/man/man1 \
     -Dman3dir=/usr/share/man/man3 \
     -Dinstallman1dir=/usr/share/man/man1 \
@@ -34,7 +34,7 @@ export CFLAGS="$CFLAGS -DNO_POSIX_2008_LOCALE -D_GNU_SOURCE"
     -Dd_static_inline
 
 make
-make DESTDIR="$1" install
+make install
 
 # Remove all unneeded files.
 find "$1" -name \*.pod       -exec rm -f {} +
diff --git a/extra/pkgconf/build b/extra/pkgconf/build
index 1dbf7ad3..5c58a1e7 100755
--- a/extra/pkgconf/build
+++ b/extra/pkgconf/build
@@ -5,7 +5,7 @@
     --sysconfdir=/etc
 
 make
-make DESTDIR="$1" install
+make install
 
 ln -s pkgconf "$1/usr/bin/pkg-config"
 
diff --git a/extra/plzip/build b/extra/plzip/build
index 30f8ed64..a6c61b8f 100755
--- a/extra/plzip/build
+++ b/extra/plzip/build
@@ -6,7 +6,7 @@
 (cd lzlib; ./configure; make)
 
 # Fix build in libc++ environment.
-case $("${CC:-cc}" -print-file-name=libc++.a) in */*)
+case $("$CC" -print-file-name=libc++.a) in */*)
     CXXFLAGS="$CXXFLAGS -lunwind -lc++abi"
 esac
 
@@ -15,7 +15,7 @@ esac
     CXXFLAGS="$CXXFLAGS -static -L$PWD/lzlib -I$PWD/lzlib"
 
 make
-make DESTDIR="$1" install
+make install
 
 # Create the symlink for compatibility. We're using
 # a multi-threaded implementation of lzip.
diff --git a/extra/python/build b/extra/python/build
index d5d16ae5..f7db0205 100755
--- a/extra/python/build
+++ b/extra/python/build
@@ -23,7 +23,7 @@ patch -p1 < python3-always-pip.patch
     --without-doc-strings
 
 make
-make DESTDIR="$1" install
+make install
 
 ln -s python3 "$1/usr/bin/python"
 ln -s pip3    "$1/usr/bin/pip"
diff --git a/extra/rsync/build b/extra/rsync/build
index ab5d34fc..beebc18d 100755
--- a/extra/rsync/build
+++ b/extra/rsync/build
@@ -16,4 +16,4 @@ export CFLAGS="-static $CFLAGS"
     --without-included-zlib
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/extra/rust/build b/extra/rust/build
index 063aee5f..804e8876 100755
--- a/extra/rust/build
+++ b/extra/rust/build
@@ -65,8 +65,6 @@ llvm-config = "/usr/bin/llvm-config"
 crt-static  = false
 EOF
 
-export DESTDIR="$1"
-
 python3 ./x.py build -j "$(nproc)"
 python3 ./x.py install
 
diff --git a/extra/samurai/build b/extra/samurai/build
index 3fc3bb05..ecfecf43 100755
--- a/extra/samurai/build
+++ b/extra/samurai/build
@@ -1,7 +1,7 @@
 #!/bin/sh -e
 
 make PREFIX=/usr
-make PREFIX=/usr DESTDIR="$1" install
+make PREFIX=/usr install
 
 ln -sf samu   "$1/usr/bin/ninja"
 ln -sf samu.1 "$1/usr/share/man/man1/ninja.1"
diff --git a/extra/scdoc/build b/extra/scdoc/build
index 28bda353..21cd2e73 100755
--- a/extra/scdoc/build
+++ b/extra/scdoc/build
@@ -1,4 +1,4 @@
 #!/bin/sh -e
 
 make PREFIX=/usr
-make DESTDIR="$1" PREFIX=/usr install
+make PREFIX=/usr install
diff --git a/extra/sqlite/build b/extra/sqlite/build
index 813859d1..f07de832 100755
--- a/extra/sqlite/build
+++ b/extra/sqlite/build
@@ -12,5 +12,5 @@ chmod +x configure
     --enable-dynamic-extensions \
     --enable-fts5
 
-make -j1
-make DESTDIR="$1" install
+make
+make install
diff --git a/extra/ssu/build b/extra/ssu/build
index 264eade0..20f4f1e3 100755
--- a/extra/ssu/build
+++ b/extra/ssu/build
@@ -2,7 +2,6 @@
 
 make
 make \
-    DESTDIR="$1" \
     PREFIX=/usr \
     BINOWN="$(id -u)" \
     BINGRP="$(id -g)" \
diff --git a/extra/strace/build b/extra/strace/build
index 4012cb52..1fb23d55 100755
--- a/extra/strace/build
+++ b/extra/strace/build
@@ -5,4 +5,4 @@
     --disable-mpers
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/extra/tiff/build b/extra/tiff/build
index 843da733..9e36c91c 100755
--- a/extra/tiff/build
+++ b/extra/tiff/build
@@ -8,7 +8,7 @@
     --without-x
 
 make
-make DESTDIR="$1" install
+make install
 
 # Remove HTML documentation.
 rm -rf "$1/usr/share/doc"
diff --git a/extra/tzdata/build b/extra/tzdata/build
index 7e542ee8..0685a003 100755
--- a/extra/tzdata/build
+++ b/extra/tzdata/build
@@ -1,13 +1,11 @@
 #!/bin/sh -e
 
-pkg_dir=$1
-
-make CC="${CC:-cc}"
+make
 make DESTDIR="$1" ZICDIR=/usr/bin install
 
 set -- africa asia australasia europe northamerica southamerica
 
-./zic -d "$pkg_dir/usr/share/zoneinfo" "$@"
-./zic -d "$pkg_dir/usr/share/zoneinfo/posix" "$@"
-./zic -d "$pkg_dir/usr/share/zoneinfo/right" -L leapseconds "$@"
-./zic -d "$pkg_dir/usr/share/zoneinfo" -p America/New_York
+./zic -d "$DESTDIR/usr/share/zoneinfo" "$@"
+./zic -d "$DESTDIR/usr/share/zoneinfo/posix" "$@"
+./zic -d "$DESTDIR/usr/share/zoneinfo/right" -L leapseconds "$@"
+./zic -d "$DESTDIR/usr/share/zoneinfo" -p America/New_York
diff --git a/extra/util-linux/build b/extra/util-linux/build
index 34454c58..828a7f00 100755
--- a/extra/util-linux/build
+++ b/extra/util-linux/build
@@ -16,7 +16,7 @@
     --without-systemd
 
 make
-make DESTDIR="$1" install
+make install
 
 # Fix broken --sbindir.
 mv -f "$1/usr/sbin/"* "$1/usr/bin"
diff --git a/extra/vim/build b/extra/vim/build
index c62cdfe7..711d0cc2 100755
--- a/extra/vim/build
+++ b/extra/vim/build
@@ -18,4 +18,4 @@
     --without-x
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/extra/wpa_supplicant/build b/extra/wpa_supplicant/build
index 9b8be701..65691740 100755
--- a/extra/wpa_supplicant/build
+++ b/extra/wpa_supplicant/build
@@ -3,7 +3,7 @@
 # The wpa_supplicant package is built statically using
 # libnl-tiny which is a minimal version of libnl maintained
 # by OpenWRT.
-make CC="${CC:-cc}" ALL_LIBS=libnl-tiny.a -C libnl
+make CC="$CC" ALL_LIBS=libnl-tiny.a -C libnl
 
 # The CFLAGS must be set to link to the above locally built
 # libnl-tiny library.
@@ -12,8 +12,8 @@ export CFLAGS="$CFLAGS -static -D_GNU_SOURCE -DLIBNL1_COMPAT"
 
 cd wpa_supplicant
 
-make LIBDIR=/usr/lib BINDIR=/usr/bin DRV_LIBS="$CFLAGS" CC="${CC:-cc}"
-make LIBDIR=/usr/lib BINDIR=/usr/bin DESTDIR="$1" install
+make LIBDIR=/usr/lib BINDIR=/usr/bin DRV_LIBS="$CFLAGS"
+make LIBDIR=/usr/lib BINDIR=/usr/bin install
 
 mkdir -p \
     "$1/usr/share/man/man5" \
diff --git a/extra/x264/build b/extra/x264/build
index d4e39de7..34535ed9 100755
--- a/extra/x264/build
+++ b/extra/x264/build
@@ -1,7 +1,5 @@
 #!/bin/sh -e
 
-export CC=${CC:-cc} CXX=${CXX:-c++}
-
 patch -p1 < x264-no-bash.patch
 
 ./configure \
@@ -12,4 +10,4 @@ patch -p1 < x264-no-bash.patch
     --enable-shared
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/extra/x265/build b/extra/x265/build
index 2bc1c919..be42f483 100755
--- a/extra/x265/build
+++ b/extra/x265/build
@@ -1,7 +1,5 @@
 #!/bin/sh -e
 
-export DESTDIR="$1"
-
 cmake source \
     -DCMAKE_INSTALL_PREFIX=/usr \
     -DCMAKE_BUILD_TYPE=Release
diff --git a/extra/zip/build b/extra/zip/build
index ce768230..a532aa9c 100755
--- a/extra/zip/build
+++ b/extra/zip/build
@@ -2,7 +2,7 @@
 
 make \
     prefix=/usr \
-    CC="${CC:-cc} $CFLAGS $CXXFLAGS" \
+    CC="$CC $CFLAGS $CXXFLAGS" \
     -f unix/Makefile generic
 
 make \
diff --git a/extra/zstd/build b/extra/zstd/build
index d2469bcf..7e8c4c13 100755
--- a/extra/zstd/build
+++ b/extra/zstd/build
@@ -9,6 +9,5 @@ make \
     HAVE_LZ4=0
 
 make \
-    DESTDIR="$1" \
     PREFIX=/usr \
     install
diff --git a/wayland/foot-pgo/build b/wayland/foot-pgo/build
index 8a810ac7..041f45fa 100755
--- a/wayland/foot-pgo/build
+++ b/wayland/foot-pgo/build
@@ -5,18 +5,20 @@
     exit 1
 }
 
-export DESTDIR="$1"
-
 # Avoid scdoc dependency.
 sed "/subdir('doc')/d" meson.build > _
 mv -f _ meson.build
 
-# PGO with < -O3 is slow > GCC 10.1.X.
-export CFLAGS="$CFLAGS -O3"
+case $("$CC" --version) in
+    *clang*)
+        # Clang requires this for PGO.
+        export CFLAGS="$CFLAGS -Wno-ignored-optimization-argument"
+    ;;
 
-# Clang requires this for PGO.
-case $("${CC:-cc}" --version) in *clang*)
-    export CFLAGS="$CFLAGS -Wno-ignored-optimization-argument"
+    *gcc*)
+        # PGO with < -O3 is slow > GCC 10.1.X.
+        export CFLAGS="$CFLAGS -O3"
+    ;;
 esac
 
 mkdir -p bld/release
@@ -61,7 +63,7 @@ meson \
 }
 
 # Clang requires this for PGO.
-case $("${CC:-cc}" --version) in *clang*)
+case $("$CC" --version) in *clang*)
     llvm-profdata merge default_*profraw --output=default.profdata
 esac
 
diff --git a/wayland/foot/build b/wayland/foot/build
index 81e4ca15..7ec66698 100755
--- a/wayland/foot/build
+++ b/wayland/foot/build
@@ -4,8 +4,6 @@
 sed "/subdir('doc')/d" meson.build > _
 mv -f _ meson.build
 
-export DESTDIR="$1"
-
 meson \
     --prefix=/usr \
     --buildtype=release \
diff --git a/wayland/grim/build b/wayland/grim/build
index 612ca870..1cd0b8ca 100755
--- a/wayland/grim/build
+++ b/wayland/grim/build
@@ -1,7 +1,5 @@
 #!/bin/sh -e
 
-export DESTDIR="$1"
-
 meson \
     --prefix=/usr \
     -Djpeg=disabled \
diff --git a/wayland/libdrm/build b/wayland/libdrm/build
index a4efcbe9..c21188f0 100755
--- a/wayland/libdrm/build
+++ b/wayland/libdrm/build
@@ -1,7 +1,5 @@
 #!/bin/sh -e
 
-export DESTDIR="$1"
-
 meson \
     --prefix=/usr \
     . build
diff --git a/wayland/libinput/build b/wayland/libinput/build
index 0017a01b..021cb46a 100755
--- a/wayland/libinput/build
+++ b/wayland/libinput/build
@@ -24,7 +24,6 @@ export CFLAGS="-Wno-unused-command-line-argument $CFLAGS"
 export PKG_CONFIG_PATH="$PWD/usr/lib/pkgconfig"
 export CFLAGS="$CFLAGS -I$PWD/usr/include -L$PWD/usr/lib"
 export CFLAGS="$CFLAGS -I$PWD/usr/include/libevdev-1.0"
-export DESTDIR="$1"
 
 meson \
     --prefix=/usr \
diff --git a/wayland/libpciaccess/build b/wayland/libpciaccess/build
index 6daf22f8..76301af8 100755
--- a/wayland/libpciaccess/build
+++ b/wayland/libpciaccess/build
@@ -4,4 +4,4 @@
     --prefix=/usr
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/wayland/libseat/build b/wayland/libseat/build
index a5e706a1..25041710 100755
--- a/wayland/libseat/build
+++ b/wayland/libseat/build
@@ -1,7 +1,5 @@
 #!/bin/sh -e
 
-export DESTDIR="$1"
-
 # Build fails in with clang due to
 # -Werror -> -Wsign-compare.
 export CFLAGS="-Wno-error $CFLAGS"
diff --git a/wayland/libxkbcommon/build b/wayland/libxkbcommon/build
index 7079a15d..2b2b084f 100755
--- a/wayland/libxkbcommon/build
+++ b/wayland/libxkbcommon/build
@@ -1,7 +1,5 @@
 #!/bin/sh -e
 
-export DESTDIR="$1"
-
 meson \
     --prefix=/usr \
     --libexecdir=/usr/lib \
diff --git a/wayland/pixman/build b/wayland/pixman/build
index cb0b1bff..e2f4f992 100755
--- a/wayland/pixman/build
+++ b/wayland/pixman/build
@@ -5,4 +5,4 @@
     --disable-gtk
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/wayland/slurp/build b/wayland/slurp/build
index 7649f1b1..e886a4e4 100755
--- a/wayland/slurp/build
+++ b/wayland/slurp/build
@@ -1,7 +1,5 @@
 #!/bin/sh -e
 
-export DESTDIR="$1"
-
 meson \
     --prefix=/usr \
     --buildtype=release \
diff --git a/wayland/sway-no-seat/build b/wayland/sway-no-seat/build
index 423f6eac..7e44aded 100755
--- a/wayland/sway-no-seat/build
+++ b/wayland/sway-no-seat/build
@@ -17,8 +17,6 @@ sed 's/0.25f, 0.25f, 0.25f/0.929, 0.870, 0.678/' \
     sway/desktop/render.c > _
 mv -f _ sway/desktop/render.c
 
-export DESTDIR="$1"
-
 meson \
     --prefix=/usr \
     -Dexamples=false \
diff --git a/wayland/sway-tiny/build b/wayland/sway-tiny/build
index e2dc11a7..4e6396c1 100755
--- a/wayland/sway-tiny/build
+++ b/wayland/sway-tiny/build
@@ -12,7 +12,6 @@ sed 's/0.25f, 0.25f, 0.25f/0.929, 0.870, 0.678/' \
     sway/desktop/render.c > _
 mv -f _ sway/desktop/render.c
 
-export DESTDIR="$1"
 export CFLAGS="$CFLAGS -Wno-unused-function -Wno-error"
 
 meson \
diff --git a/wayland/sway/build b/wayland/sway/build
index 3e56bc76..cebd00ff 100755
--- a/wayland/sway/build
+++ b/wayland/sway/build
@@ -7,8 +7,6 @@ sed 's/0.25f, 0.25f, 0.25f/0.929, 0.870, 0.678/' \
     sway/desktop/render.c > _
 mv -f _ sway/desktop/render.c
 
-export DESTDIR="$1"
-
 meson \
     --prefix=/usr \
     -Dexamples=false \
diff --git a/wayland/wayland-protocols/build b/wayland/wayland-protocols/build
index 6daf22f8..76301af8 100755
--- a/wayland/wayland-protocols/build
+++ b/wayland/wayland-protocols/build
@@ -4,4 +4,4 @@
     --prefix=/usr
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/wayland/wayland/build b/wayland/wayland/build
index da8f9e20..8e87cc7c 100755
--- a/wayland/wayland/build
+++ b/wayland/wayland/build
@@ -7,4 +7,4 @@
     --enable-static
 
 make
-make DESTDIR="$1" install
+make install
diff --git a/wayland/wbg/build b/wayland/wbg/build
index 040eaab6..374727c0 100755
--- a/wayland/wbg/build
+++ b/wayland/wbg/build
@@ -1,7 +1,5 @@
 #!/bin/sh -e
 
-export DESTDIR="$1"
-
 meson \
     --prefix=/usr \
     --buildtype=release \
diff --git a/wayland/wl-clipboard/build b/wayland/wl-clipboard/build
index 9565a235..fa4fb1ce 100755
--- a/wayland/wl-clipboard/build
+++ b/wayland/wl-clipboard/build
@@ -3,8 +3,6 @@
 sed "/subdir('completions')/d" meson.build > _
 mv -f _ meson.build
 
-export DESTDIR="$1"
-
 meson \
     --prefix=/usr \
     --buildtype=release \
diff --git a/wayland/wlroots/build b/wayland/wlroots/build
index 7e91c97a..a40a4b05 100755
--- a/wayland/wlroots/build
+++ b/wayland/wlroots/build
@@ -1,7 +1,5 @@
 #!/bin/sh -e
 
-export DESTDIR="$1"
-
 meson \
     --prefix=/usr \
     -Ddefault_library=both \
diff --git a/wayland/wlsunset/build b/wayland/wlsunset/build
index 7649f1b1..e886a4e4 100755
--- a/wayland/wlsunset/build
+++ b/wayland/wlsunset/build
@@ -1,7 +1,5 @@
 #!/bin/sh -e
 
-export DESTDIR="$1"
-
 meson \
     --prefix=/usr \
     --buildtype=release \