libstdc++: Adjust variable export in makefile

[thirdparty/gcc.git] / libstdc++-v3 / testsuite / Makefile.am

diff --git a/libstdc++-v3/testsuite/Makefile.am b/libstdc++-v3/testsuite/Makefile.am
index 2fca179fca4f3a334f2fc5e3bb7392d3b5e296b6..7b412411bfeec9982b0da3d343336af5beb683bc 100644 (file)
--- a/libstdc++-v3/testsuite/Makefile.am
+++ b/libstdc++-v3/testsuite/Makefile.am
@@ -182,7 +182,7 @@ check-compile: testsuite_files ${compile_script}
 check_performance_script=${glibcxx_srcdir}/scripts/check_performance
 check-performance: testsuite_files_performance ${performance_script}
        -@(chmod + ${check_performance_script}; \
-         export CXXFLAGS="$(CXXFLAGS)"; \
+         CXXFLAGS='$(CXXFLAGS)'; export CXXFLAGS; \
          ${check_performance_script} ${glibcxx_srcdir} ${glibcxx_builddir})
 
 # Runs the testsuite in debug mode.