Update build instructions

README.md

@@ -23,7 +23,9 @@ Before building, you will need:
 
 ### Building
 
-**Make sure that the resulting install directory for the .so is found by the linker, otherwise the loader will not find it.** In general, prefer using distro provided packages.
+**These instructions use `--prefix=/usr`, which is generally not recommened since vkBasalt will be installed in directories that are meant for the package manager. The alternative is not setting the prefix, it will then be installed in `/usr/local`. But you need to make sure that `ld` finds the library since /usr/local is very likely not in the default path.** 
+
+In general, prefer using distro provided packages.
 
 ```
 git clone https://github.com/DadSchoorse/vkBasalt.git
@@ -33,14 +35,14 @@ cd vkBasalt
 #### 64bit
 
 ```
-meson --buildtype=release builddir
+meson --buildtype=release --prefix=/usr builddir
 ninja -C builddir install
 ```
 #### 32bit
 
-Make sure that `PKG_CONFIG_PATH=/usr/lib32/pkgconfig` and `--libdir=lib32` are correct for your distro and change them if needed. 
+Make sure that `PKG_CONFIG_PATH=/usr/lib32/pkgconfig` and `--libdir=lib32` are correct for your distro and change them if needed. On Debian based distros you need to replace `lib32` with `lib/i386-linux-gnu`, for example.
 ```
-ASFLAGS=--32 CFLAGS=-m32 CXXFLAGS=-m32 PKG_CONFIG_PATH=/usr/lib32/pkgconfig meson --buildtype=release --libdir=lib32 -Dwith_json=false builddir.32
+ASFLAGS=--32 CFLAGS=-m32 CXXFLAGS=-m32 PKG_CONFIG_PATH=/usr/lib32/pkgconfig meson --prefix=/usr --buildtype=release --libdir=lib32 -Dwith_json=false builddir.32
 ninja -C builddir.32 install
 ```