The branch main has been updated by brooks:
URL:
https://cgit.FreeBSD.org/src/commit/?id=d616ae46b4849b0678326dfacbba5fd7c8febbea
commit d616ae46b4849b0678326dfacbba5fd7c8febbea
Author: Dan McGregor <dan.mcgre...@usask.ca>
AuthorDate: 2021-02-17 22:26:49 +0000
Commit: Brooks Davis <bro...@freebsd.org>
CommitDate: 2021-02-17 22:26:49 +0000
Add fileprefixmap compiler feature
-ffile-prefix-map=<old>=<new> is a compiler feature first added in
GCC 8, and implemented for clang 10. It remaps old paths to new paths
in both debug information and __FILE__ and __BASE_FILE__ macros. It can
be used to improve reproducibility or to hide local system directories.
I intend to use it to replace the real source directory and real object
directory with constant values across all builds.
Reviewed by: brooks
Differential Revision: https://reviews.freebsd.org/D28632
---
share/mk/bsd.compiler.mk | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/share/mk/bsd.compiler.mk b/share/mk/bsd.compiler.mk
index fa8e6c44a17e..0d8f02489f00 100644
--- a/share/mk/bsd.compiler.mk
+++ b/share/mk/bsd.compiler.mk
@@ -226,6 +226,10 @@ ${X_}COMPILER_FEATURES+= c++17
.if ${${X_}COMPILER_TYPE} == "clang"
${X_}COMPILER_FEATURES+= retpoline init-all
.endif
+.if ${${X_}COMPILER_TYPE} == "clang" && ${${X_}COMPILER_VERSION} >= 100000 || \
+ (${${X_}COMPILER_TYPE} == "gcc" && ${${X_}COMPILER_VERSION} >= 80100)
+${X_}COMPILER_FEATURES+= fileprefixmap
+.endif
.else
# Use CC's values
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