diff --git a/cross-build-aarch64-linux-gnu.sh b/cross-build-aarch64-linux-gnu.sh
deleted file mode 100755
index f530c39..0000000
--- a/cross-build-aarch64-linux-gnu.sh
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/bin/bash
-export CROSSBUILD=aarch64-linux-gnu
-export CROSSPATH=/opt/aarch64-linux-gnu
-export CROSSLIBPATH=$CROSSPATH/lib
-export CROSSBINPATH=$CROSSPATH/bin
-
diff --git a/cross-build-i686-w64-mingw32.sh b/cross-build-i686-w64-mingw32.sh
deleted file mode 100755
index 943bf86..0000000
--- a/cross-build-i686-w64-mingw32.sh
+++ /dev/null
@@ -1,7 +0,0 @@
-#!/bin/bash
-export CROSSBUILD=i686-w64-mingw32
-export CROSSPATH=/opt/mingw32/mingw
-export CROSSLIBPATH=$CROSSPATH/lib
-export CROSSBINPATH=$CROSSPATH/bin
-export PATH=/opt/mingw32/bin:$PATH
-
diff --git a/cross-build-x86_64-apple-darwin15.sh b/cross-build-x86_64-apple-darwin15.sh
deleted file mode 100755
index cba3696..0000000
--- a/cross-build-x86_64-apple-darwin15.sh
+++ /dev/null
@@ -1,18 +0,0 @@
-#!/bin/bash
-
-export CPPFLAGS=-I/opt/osx/x86_64-apple-darwin15/include
-export LDFLAGS=-L/opt/osx/x86_64-apple-darwin15/lib
-
-export OSXCROSS_PKG_CONFIG_USE_NATIVE_VARIABLES=1
-
-export CC=x86_64-apple-darwin15-clang
-export CXX=x86_64-apple-darwin15-clang++
-
-export CROSSBUILD=x86_64-apple-darwin15
-export CROSSPATH=/opt/osx/x86_64-apple-darwin15
-export CROSSLIBPATH=$CROSSPATH/lib
-export CROSSBINPATH=$CROSSPATH/bin
-export PATH=/opt/osx/bin:$PATH
-export PKG_CONFIG_PATH=
-export PKG_CONFIG_LIBDIR=$CROSSLIBPATH/pkgconfig
-
diff --git a/cross-build-x86_64-linux-gnu.sh b/cross-build-x86_64-linux-gnu.sh
deleted file mode 100755
index e69de29..0000000
diff --git a/cross-build-x86_64-w64-mingw32.sh b/cross-build-x86_64-w64-mingw32.sh
deleted file mode 100755
index b00f244..0000000
--- a/cross-build-x86_64-w64-mingw32.sh
+++ /dev/null
@@ -1,7 +0,0 @@
-#!/bin/bash
-export CROSSBUILD=x86_64-w64-mingw32
-export CROSSPATH=/opt/mingw64/mingw
-export CROSSLIBPATH=$CROSSPATH/lib
-export CROSSBINPATH=$CROSSPATH/bin
-export PATH=/opt/mingw64/bin:$PATH
-