# repository), we let git append identification of the actual commit.
PACKAGE=notmuch
-IS_GIT=$(shell if [ -d ${srcdir}/.git ] ; then echo yes ; else echo no; fi)
+IS_GIT:=$(if $(wildcard ${srcdir}/.git),yes,no)
ifeq ($(IS_GIT),yes)
DATE:=$(shell git --git-dir=${srcdir}/.git log --date=short -1 --pretty=format:%cd)
PV_FILE=bindings/python/notmuch/version.py
# Smash together user's values with our extra values
-FINAL_CFLAGS = -DNOTMUCH_VERSION=$(VERSION) $(CPPFLAGS) $(CFLAGS) $(WARN_CFLAGS) $(extra_cflags) $(CONFIGURE_CFLAGS)
+STD_CFLAGS := -std=gnu99
+FINAL_CFLAGS = -DNOTMUCH_VERSION=$(VERSION) $(CPPFLAGS) $(STD_CFLAGS) $(CFLAGS) $(WARN_CFLAGS) $(extra_cflags) $(CONFIGURE_CFLAGS)
FINAL_CXXFLAGS = $(CPPFLAGS) $(CXXFLAGS) $(WARN_CXXFLAGS) $(extra_cflags) $(extra_cxxflags) $(CONFIGURE_CXXFLAGS)
FINAL_NOTMUCH_LDFLAGS = $(LDFLAGS) -Lutil -lutil -Llib -lnotmuch
ifeq ($(LIBDIR_IN_LDCONFIG),0)