[clang] [flang] [clang][driver] Special care for -l flags in config files (PR #117573)

[David Truby via cfe-commits]

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@@ -61,3 +61,24 @@
 ! CHECK-TWO-CONFIGS-NEXT: Configuration file: {{.*}}Inputs{{.}}config2{{.}}config-4.cfg
 ! CHECK-TWO-CONFIGS: -ffp-contract=fast
 ! CHECK-TWO-CONFIGS: -O3
+
+!--- The -l flags should be moved to the end of input list and appear only when linking.
+! RUN: %flang --target=aarch64-unknown-linux-gnu --config %S/Inputs/config-l.cfg -o %s.out %s -### 2>&1 | FileCheck %s -check-prefix CHECK-LINKING
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DavidTruby wrote:

Sorry, the comments about -Bstatic/-Bdynamic that I made were from a draft of this comment that I didn't mean to send 😓 -Wl,... options like -Bstatic and -Bdynamic will just be passed on to the linker the same as on other platforms, regardless of if the linker will accept them or not (and it won't for these two but that doesn't really matter for the purposes of the test)

https://github.com/llvm/llvm-project/pull/117573