Add Google Perf Tools build.

"make build=gperf" will now build and link the google perf tools
library into mutool. When mutool is then run, a mutool.prof file
is dropped into the current directory that can be analysed.

1 files changed, 3 insertions, 0 deletions

diff --git a/Makerules b/Makerules
index f9f2b06f..c73d8242 100644
--- a/Makerules
+++ b/Makerules
@@ -32,6 +32,9 @@ ifeq "$(HAVE_LIBDL)" "yes"
 CFLAGS += -DHAVE_LIBDL
 LIBS += -ldl
 endif
+else ifeq "$(build)" "gperf"
+CFLAGS += -pipe -O2 -DNDEBUG -fomit-frame-pointer -DGPERF
+LIBS += -lprofiler
 else
 $(error unknown build setting: '$(build)')
 endif