perf tools: Move `try-cc'

The `try-cc' user-defined function was in tools/perf/feature-tests.mak;
this commit moves it to tools/perf/config/utilities.mak.

Signed-off-by: Michael Witten <mfwitten@gmail.com>
Link: http://lkml.kernel.org/n/tip-bqhwcuxsrve0iodn6q4ejaoi@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/tools/perf/config/utilities.mak b/tools/perf/config/utilities.mak
index 6d8ff8878405..8046182a19eb 100644
--- a/tools/perf/config/utilities.mak
+++ b/tools/perf/config/utilities.mak
@@ -178,3 +178,11 @@ endef
 _ge_attempt = $(or $(get-executable),$(_gea_warn),$(call _gea_err,$(2)))
 _gea_warn = $(warning The path '$(1)' is not executable.)
 _gea_err  = $(if $(1),$(error Please set '$(1)' appropriately))
+
+# try-cc
+# Usage: option = $(call try-cc, source-to-build, cc-options)
+try-cc = $(shell sh -c                                            \
+        'TMP="$(OUTPUT)$(TMPOUT).$$$$";                           \
+         echo "$(1)" |                                            \
+         $(CC) -x c - $(2) -o "$$TMP" > /dev/null 2>&1 && echo y; \
+         rm -f "$$TMP"')