Linux tests should work under gcov too. refs #1921. [t:1921]

git-svn-id: file:///svn/toku/tokudb@13807 c7de825b-a66e-492c-adef-691d508d4ae1

linux/Makefile

@@ -13,6 +13,7 @@ OBJS = $(patsubst %.c,%.$(OEXT),$(SRCS))
 TARGET = libtokuportability.$(AEXT)
 
 build install: $(LIBPORTABILITY)
+	cd tests;$(MAKE) build
 
 $(LIBPORTABILITY): $(TARGET)
 	if ! diff $< $@ 2>/dev/null; then cp $< $@; fi

linux/tests/Makefile

@@ -2,6 +2,9 @@
 CPPFLAGS = -D_GNU_SOURCE
 CPPFLAGS += -I../../toku_include -I.. -I.
 CFLAGS = -Wall -Werror -g -O0 -std=c99
+ifneq ($(GCOV),)
+	CFLAGS += -fprofile-arcs -ftest-coverage -DGCOV
+endif
 LDFLAGS = ../libtokuportability.a -lpthread
 SRCS = $(wildcard test-*.c)
 TARGETS = $(patsubst %.c,%,$(SRCS))
@@ -29,7 +32,8 @@ all: $(TARGETS)
 test-gettime: test-gettime.c
 	$(CC) $(CPPFLAGS) $(CFLAGS) -o $@ $< $(LDFLAGS) -lrt
 
-.PHONY: check
+.PHONY: check build
+build: $(TARGETS)
 check: $(TARGETS) $(RUNTARGETS);
 
 %.tdbrun: %