On 2025-03-18 03:27 pm, Martin Storsjö wrote:
On Mon, 17 Mar 2025, Gyan Doshi wrote:



On 2025-03-17 09:44 pm, Zhao Zhili wrote:

On Mar 17, 2025, at 23:16, Gyan Doshi <ffm...@gyani.pro> wrote:

This is to not break linking with toolchains that don't support reading
args from a 'response file'.
---
I've assumed that ld on a system will have same support as ar.

configure           | 7 +++++++
ffbuild/library.mak | 8 ++++++++
2 files changed, 15 insertions(+)

diff --git a/configure b/configure
index f6964c4ee1..d84e32196d 100755
--- a/configure
+++ b/configure
@@ -5230,6 +5230,12 @@ else
     ar_o='$@'
fi

+if $ar 2>&1 | grep -qi  "@.*file"; then
+    ar_objs="true"
+else
+    ar_objs=""
+fi
Works for me.

Good. Let's wait for another report.

This unbreaks the build for me on macOS too.

As this change did break a fairly major platform, I don't think we should wait too long to either revert the change, or push the fix.

As for the fix - I generally find it more robust to actually _try_ doing the requested thing (use a response file), than to look for specific strings in help output.

I see that the regex, "@.*file", should be matched by both GNU ar and llvm-ar, so that's good. But e.g. MS lib.exe also supports response files, and it doesn't include this pattern in the output. Also MS lib.exe would certainly be a case where we'd want to use response files to overcome the command line length limit.

So TL;DR, please push this to unbreak platforms like macOS and BSD, or revert the original change. But I don't find the test entirely ideal.

I'll push this now, and then work on a robust check.

Regards,
Gyan

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