build(constants): changes install path to fourdst/constants

previously install path was at includedir/fourdst/fourdst/constants, this changes the install path to includedir/fourdst

BREAKING CHANGE: This change may break builds which did not previously use -I/usr/local/fourdst/ (i.e. if previous code included #include "fourdst/fourdst/constants/const.h" it will no longer function). Rather, code should use -I/usr/local/include (or whatever include dir was set by the user at build time) and then #include "fourdst/constants/const.h")

meson.build

@@ -18,7 +18,7 @@
 #   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 #
 # *********************************************************************** #
-project('libconstants', 'cpp', version: 'v1.1.0', default_options: ['cpp_std=c++23'], meson_version: '>=1.5.0')
+project('libconstants', 'cpp', version: 'v1.1.1', default_options: ['cpp_std=c++23'], meson_version: '>=1.5.0')
 
 # Add default visibility for all C++ targets
 add_project_arguments('-fvisibility=default', language: 'cpp')

src/constants/meson.build

@@ -21,4 +21,4 @@ const_dep = declare_dependency(
 const_headers = files(
   'include/fourdst/constants/const.h'
 )
-install_headers(const_headers, subdir : 'fourdst/fourdst/constants')
+install_headers(const_headers, subdir : 'fourdst/constants')