Add build option to set rpath on Linux

Author: oscarbenjamin

.gitignore

@@ -1,4 +1,5 @@
 build/*
+build-install/*
 dist/*
 src/flint/**/*.c
 src/flint/*.html

meson.build

@@ -9,6 +9,16 @@ gmp_dep = dependency('gmp')
 mpfr_dep = dependency('mpfr')
 flint_dep = dependency('flint')
 
+# Add rpaths for a local build of flint found via pkgconfig
+#   https://github.com/mesonbuild/meson/issues/13046
+if get_option('add_flint_rpath')
+  flint_lib_dir = flint_dep.get_pkgconfig_variable('libdir')
+  add_project_link_arguments(
+    '-Wl,-rpath=' + flint_lib_dir,
+    language: 'c',
+  )
+endif
+
 # flint.pc was missing -lflint until Flint 3.1.0
 if flint_dep.version().version_compare('<3.1')
   flint_dep = cc.find_library('flint')

meson.options

@@ -0,0 +1 @@
+option('add_flint_rpath', type : 'boolean', value : false)

requirements-dev.txt

@@ -0,0 +1,7 @@
+cython
+spin
+meson
+meson-python
+pytest
+coverage
+pytest-cov