Add mbig-obj flag to allow cross-compiling libexpr to mingw32

puffnfresh · puffnfresh · commit 26539a087f7e · 2025-01-31T22:53:42.000+11:00
diff --git a/nix-meson-build-support/big-objs/meson.build b/nix-meson-build-support/big-objs/meson.build
@@ -0,0 +1,4 @@
+# libexpr's primops creates a large object
+# Without the following flag, we'll get errors when cross-compiling to mingw32:
+# Fatal error: can't write 66 bytes to section .text of src/libexpr/libnixexpr.dll.p/primops.cc.obj: 'file too big'
+add_project_arguments([ '-Wa,-mbig-obj' ], language: 'cpp')
diff --git a/src/libexpr/meson.build b/src/libexpr/meson.build
@@ -24,6 +24,7 @@ deps_public_maybe_subproject = [
   dependency('nix-fetchers'),
 ]
 subdir('nix-meson-build-support/subprojects')
+subdir('nix-meson-build-support/big-objs')
 
 boost = dependency(
   'boost',

Original file line number	Diff line number	Diff line change
`@@ -24,6 +24,7 @@ deps_public_maybe_subproject = [`
`24`	`24`	`dependency('nix-fetchers'),`
`25`	`25`	`]`
`26`	`26`	`subdir('nix-meson-build-support/subprojects')`
	`27`	`+subdir('nix-meson-build-support/big-objs')`
`27`	`28`
`28`	`29`	`boost = dependency(`
`29`	`30`	`'boost',`