diff --git a/toolchains/arm64.cmake b/toolchains/arm64.cmake
index 7724d84..80eaeca 100644
--- a/toolchains/arm64.cmake
+++ b/toolchains/arm64.cmake
@@ -2,6 +2,7 @@ set(CMAKE_C_COMPILER "aarch64-linux-gnu-gcc")
 set(CMAKE_CXX_COMPILER "aarch64-linux-gnu-g++")
 set(CMAKE_SYSTEM_NAME Linux)
 set(CMAKE_SYSTEM_PROCESSOR aarch64)
-set(CMAKE_FIND_ROOT_PATH /usr/aarch64-linux-gnu)
+set(CMAKE_FIND_ROOT_PATH /usr/lib/aarch64-linux-gnu)
 set(CMAKE_INSTALL_LIBDIR "lib/aarch64-linux-gnu")
-set(TOOLCHAIN_PREFIX aarch64-linux-gnu-)
\ No newline at end of file
+set(TOOLCHAIN_PREFIX aarch64-linux-gnu-)
+set(ENV{PKG_CONFIG_LIBDIR} /usr/lib/aarch64-linux-gnu/pkgconfig)
\ No newline at end of file
diff --git a/toolchains/armhf.cmake b/toolchains/armhf.cmake
index 84a914c..72c585e 100644
--- a/toolchains/armhf.cmake
+++ b/toolchains/armhf.cmake
@@ -2,6 +2,7 @@ set(CMAKE_C_COMPILER "arm-linux-gnueabihf-gcc")
 set(CMAKE_CXX_COMPILER "arm-linux-gnueabihf-g++")
 set(CMAKE_SYSTEM_NAME Linux)
 set(CMAKE_SYSTEM_PROCESSOR arm)
-set(CMAKE_FIND_ROOT_PATH /usr/arm-linux-gnuabihf)
+set(CMAKE_FIND_ROOT_PATH /usr/lib/arm-linux-gnuabihf)
 set(CMAKE_INSTALL_LIBDIR "lib/arm-linux-gnuabihf")
-set(TOOLCHAIN_PREFIX arm-linux-gnueabihf-)
\ No newline at end of file
+set(TOOLCHAIN_PREFIX arm-linux-gnueabihf-)
+set(ENV{PKG_CONFIG_LIBDIR} /usr/lib/arm-linux-gnu-gnuabihf/pkgconfig)
\ No newline at end of file
diff --git a/toolchains/i386.cmake b/toolchains/i386.cmake
index b0571b0..fc63175 100644
--- a/toolchains/i386.cmake
+++ b/toolchains/i386.cmake
@@ -2,6 +2,7 @@ set(CMAKE_C_COMPILER "i686-linux-gnu-gcc")
 set(CMAKE_CXX_COMPILER "i686-linux-gnu-g++")
 set(CMAKE_SYSTEM_NAME Linux)
 set(CMAKE_SYSTEM_PROCESSOR i686)
-set(CMAKE_FIND_ROOT_PATH /usr/i686-linux-gnu)
+set(CMAKE_FIND_ROOT_PATH /usr/lib/i686-linux-gnu)
 set(CMAKE_INSTALL_LIBDIR "lib/i686-linux-gnu")
-set(TOOLCHAIN_PREFIX i686-linux-gnu-)
\ No newline at end of file
+set(TOOLCHAIN_PREFIX i686-linux-gnu-)
+set(ENV{PKG_CONFIG_LIBDIR} /usr/lib/i686-linux-gnu/pkgconfig)
\ No newline at end of file
diff --git a/toolchains/riscv64.cmake b/toolchains/riscv64.cmake
index 683396a..287814b 100644
--- a/toolchains/riscv64.cmake
+++ b/toolchains/riscv64.cmake
@@ -2,6 +2,7 @@ set(CMAKE_C_COMPILER "riscv64-linux-gnu-gcc")
 set(CMAKE_CXX_COMPILER "riscv64-linux-gnu-g++")
 set(CMAKE_SYSTEM_NAME Linux)
 set(CMAKE_SYSTEM_PROCESSOR riscv64)
-set(CMAKE_FIND_ROOT_PATH /usr/riscv64-linux-gnu)
+set(CMAKE_FIND_ROOT_PATH /usr/lib/riscv64-linux-gnu)
 set(CMAKE_INSTALL_LIBDIR "lib/riscv64-linux-gnu")
-set(TOOLCHAIN_PREFIX riscv64-linux-gnu-)
\ No newline at end of file
+set(TOOLCHAIN_PREFIX riscv64-linux-gnu-)
+set(ENV{PKG_CONFIG_LIBDIR} /usr/lib/riscv64-linux-gnu/pkgconfig)
\ No newline at end of file