Fix bashism in `libsanitizer/configure.tgt'
Appending to a string variable with `+=' is a bashism and does not work in
strict POSIX shells like dash. This results in the extra compilation flags not
to be set correctly. This patch replaces the `+=' syntax with a simple string
interpolation to append to the `EXTRA_CXXFLAGS' variable.
libsanitizer/ChangeLog
PR sanitizer/101111
* configure.tgt: Fix bashism in setting of `EXTRA_CXXFLAGS'.
diff --git a/libsanitizer/configure.tgt b/libsanitizer/configure.tgt
index f635e41..5a59ea6 100644
--- a/libsanitizer/configure.tgt
+++ b/libsanitizer/configure.tgt
@@ -70,7 +70,7 @@
;;
x86_64-*-darwin2* | x86_64-*-darwin1[2-9]* | i?86-*-darwin1[2-9]*)
TSAN_SUPPORTED=no
- EXTRA_CXXFLAGS+="-Wl,-undefined,dynamic_lookup"
+ EXTRA_CXXFLAGS="${EXTRA_CXXFLAGS} -Wl,-undefined,dynamic_lookup"
;;
x86_64-*-solaris2.11* | i?86-*-solaris2.11*)
;;
