rust/tests/run-make/lto-readonly-lib/Makefile

# ignore-cross-compile
include ../tools.mk

all:
	$(RUSTC) lib.rs

	# the compiler needs to copy and modify the rlib file when performing
	# LTO, so we should ensure that it can cope with the original rlib
	# being read-only.
	chmod 444 $(TMPDIR)/*.rlib

	$(RUSTC) main.rs -C lto
	$(call RUN,main)
ignore failing cross-compiled run-make tests `run-make-fulldeps` is never cross-compiled, so a lot of these tests never accounted for --target. Ignore them when cross-compiling for now. 2023-03-30 08:46:31 -05:00			`# ignore-cross-compile`
Diagnose missing includes in run-make tests 2022-08-23 00:00:00 +00:00			`include ../tools.mk`
rustc: Fix permission denied error in 'ar' when lto is enabled The reason that 'ar' can fail with permission denied is that when link-time optimizations are enabled, rustc copies libraries into a temporary directory, preserving file permissions, and subsequently modifies them using 'ar'. The modification can fail because some package managers may install libraries in system directories as read-only files, which means the temporary file also becomes read-only when it is copied. I have fixed this by giving the temporary file's owner read+write permissions after the copy. I have also added a regression test for this issue. 2014-09-27 05:08:41 +02:00
			`all:`
			`$(RUSTC) lib.rs`

			`# the compiler needs to copy and modify the rlib file when performing`
			`# LTO, so we should ensure that it can cope with the original rlib`
			`# being read-only.`
			`chmod 444 $(TMPDIR)/*.rlib`

			`$(RUSTC) main.rs -C lto`
			`$(call RUN,main)`