build: Use the appropriate linker flags

We need to check if the linker flags we use are available, depending on
the platform, and we need to ensure that the shared library is
versioned appropriately.

diff --git a/gtk/meson.build b/gtk/meson.build
index 392895c822a0a857ec4ae547de4dfb5734cebd9b..f8bf7d55f15c595f0ba03982021f6a315969bd8b 100644 (file)
--- a/gtk/meson.build
+++ b/gtk/meson.build
@@ -876,12 +876,13 @@ endforeach
 # Library
 
 libgtk = shared_library('gtk-4',
+  soversion: gtk_soversion,
   sources: [typefuncs, gtk_sources, gtkmarshal_h, gtkprivatetypebuiltins_h],
   c_args: gtk_cargs + common_cflags,
   include_directories: [confinc, gdkinc, gtkinc],
   dependencies: gtk_deps + [libgdk_dep, libgsk_dep],
   link_with: [libgdk, libgsk, included_input_modules],
-  link_args: ['-Bsymbolic'],
+  link_args: common_ldflags,
   install: true)
 
 libgtk_dep = declare_dependency(
@@ -889,7 +890,7 @@ libgtk_dep = declare_dependency(
   include_directories: [confinc, gtkinc],
   dependencies: gtk_deps + [libgdk_dep, libgsk_dep],
   link_with: libgtk,
-  link_args: ['-Bsymbolic'])
+  link_args: common_ldflags)
 
 # Installed tools
 

diff --git a/meson.build b/meson.build
index 34ba0fb59ced1843f8ac2325415f53e2ed03a833..da5505ef2789fa1dd800031601fc1872916a3d23 100644 (file)
--- a/meson.build
+++ b/meson.build
@@ -68,6 +68,8 @@ gtk_binary_version = '4.0.0'
 
 gtk_binary_age = 100 * gtk_minor_version + gtk_micro_version
 
+gtk_soversion = '0.@0@.@1@'.format(gtk_binary_age - gtk_interface_age, gtk_interface_age)
+
 gtk_api_version = '4.0'
 
 x11_enabled      = get_option('enable-x11-backend')
@@ -272,6 +274,21 @@ if get_option('default_library') != 'static'
   endif
 endif
 
+common_ldflags = []
+
+if host_machine.system() == 'linux'
+  foreach ldflag: [ '-Wl,-Bsymbolic', '-Wl,-z,relro', '-Wl,-z,now', ]
+    if cc.has_argument(ldflag)
+      common_ldflags += [ ldflag ]
+    endif
+  endforeach
+endif
+
+# Maintain compatibility with autotools
+if host_machine.system() == 'darwin'
+  common_ldflags += [ '-compatibility_version=1', '-current_version=1.0', ]
+endif
+
 confinc = include_directories('.')
 gdkinc = include_directories('gdk')
 gtkinc = include_directories('gtk')