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new f33b1b9a ltmain.in: Handle clang's -resource-dir flag.
f33b1b9a is described below
commit f33b1b9a4eaca4419014df5c7208f105349667fc
Author: Alexey Samsonov <[email protected]>
AuthorDate: Wed Feb 11 08:07:26 2026 +0000
ltmain.in: Handle clang's -resource-dir flag.
When Clang is used to cross compile, the user may list
-resource-dir flag that Clang driver uses to discover
target-specific headers and runtime libraries.
* build-aux/ltmain.in: Pass clang's '-resource-dir=*' flag for
choosing compiler resource files, such as runtime libraries
through libtool unchanged.
* NEWS: Update.
---
NEWS | 4 ++++
build-aux/ltmain.in | 3 ++-
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/NEWS b/NEWS
index 0daedf1c..098b781a 100644
--- a/NEWS
+++ b/NEWS
@@ -2,6 +2,10 @@ NEWS - list of user-visible changes between releases of GNU
Libtool
* Noteworthy changes in release ?.? (????-??-??) [?]
+** New features:
+
+ - Pass 'resource-dir=*' flag for Clang.
+
** Bug fixes:
- Store cygpath file path conversions correctly for MSYS2 and MSVC.
diff --git a/build-aux/ltmain.in b/build-aux/ltmain.in
index d58b232b..9108006c 100644
--- a/build-aux/ltmain.in
+++ b/build-aux/ltmain.in
@@ -5660,6 +5660,7 @@ func_mode_link ()
# -fuse-ld=* Linker select flags for GCC
# -static-* direct GCC to link specific libraries statically
# -fcilkplus Cilk Plus language extension features for C/C++
+ # -resource-dir=* for selecting compiler resource directory with
clang
# -rtlib=* select c runtime lib with clang
# --unwindlib=* select unwinder library with clang
# -f{file|debug|macro|profile}-prefix-map=* needed for lto linking
@@ -5668,7 +5669,7 @@ func_mode_link ()
-64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \
-t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*|--target=*|
\
-O*|-g*|-flto*|-fwhopr*|-fuse-linker-plugin|-fstack-protector*|-no-canonical-prefixes|
\
- -stdlib=*|-rtlib=*|--unwindlib=*| \
+ -stdlib=*|-resource-dir=*|-rtlib=*|--unwindlib=*| \
-specs=*|-fsanitize=*|-fno-sanitize*|-shared-libsan|-static-libsan| \
-ffile-prefix-map=*|-fdebug-prefix-map=*|-fmacro-prefix-map=*|-fprofile-prefix-map=*|
\
-fdiagnostics-color*|-frecord-gcc-switches| \
